Senku X Reader - Blog Posts

Thank you Cupid the goat !!

Never let me cook again vro 🥀🥀🥀🥀🥀

in honor of 420 I wrote a fic

（≧∇≦）

girl, could you do a touch starved senku oneshot? GN reader please

Cling Radius:

(Word Count: 736 // Spoilers: none)

The nights out here were colder than you remembered. Not colder in temperature—though, granted, sleeping in an open-roofed hut was a far cry from central heating—but colder in tone. Quiet in that eerie, ancient way. No distant hum of city lights, no soft rumble of traffic. Just crickets. And the occasional howl that sounded way too close.

Still, none of that explained why Senku was pressed to your back like a goddamn second skin.

You blinked up at the thatched ceiling, eyes adjusting to the moonlight spilling in from above, your limbs still half-asleep. Senku was out cold behind you, chest rising in slow, steady rhythm, one arm draped heavy over your middle, the other wedged under your neck like a makeshift pillow. His long legs were tangled with yours in a mess of barely-washed sheets, and he smelled faintly of charcoal and mint leaves.

You didn’t dare move.

Not because you didn’t want to. But because you were still trying to process what the hell this was.

When you were revived, the first thing you remembered—after the scream-inducing sensation of skin cracking back to life—was Senku’s face hovering above yours, tense but relieved. He’d cracked some stupid science joke, you’d flipped him off, and everything had felt strangely normal.

Except… it wasn’t.

Because Senku, for all his scientific detachment and emotionally stunted habits pre-petrification, had not stopped touching you since.

A guiding hand at your lower back. A shoulder bump when no one else was watching. Fingers brushing yours when he passed tools or water. A low, murmured “You good?” as his knuckles barely grazed your jaw to check your fever that didn’t exist. And now—this. Night after night of you waking up basically cocooned in the human version of a space heater with freakishly pointy hair.

You tilted your head slightly. His breath was warm against your neck. A little uneven now that you were shifting.

“Senku,” you whispered, just to see if he was awake.

No response. He only curled tighter.

His hand slid from your waist to your stomach, fingers splaying out like he was subconsciously making sure you were still there. You wondered if he even realized he was doing it.

You bit your lip and held still a little longer. Not out of awkwardness anymore, but out of… curiosity.

Because, yeah. Before the whole stone-world and de-petrification and war stuff, Senku wouldn’t have touched you with a ten-foot pole unless it involved CPR or slapping a lab coat on you. He wasn’t cold, not exactly—but his mind was always elsewhere. Always calculating. Intimacy wasn’t a formula he prioritized.

Now?

Now, he curled around you like the night would take you away.

Eventually, his voice—low and cracked with sleep—broke the silence.

“You’re overthinking again.”

You flinched. “You're awake?”

“Barely,” he mumbled, nuzzling into your shoulder. His nose was freezing. “But I can feel your heartbeat trying to vibrate through the dirt floor. It's annoying.”

You were silent for a beat. “You’re literally clinging to me.”

“Because you were cold.”

“I wasn't cold.”

“You could’ve been.”

“…You really think that holds up as logic?”

Senku gave a sleepy scoff, which somehow translated into a snort and a hum. “Shut up. Let me have this.”

You blinked at the ceiling again, mouth twitching.

“So what—post-petrification side effect is... extreme clinginess?”

“Maybe,” he muttered. “Brain’s the same. Body’s not. People change.”

You let out a breath, soft. “You used to be so weird about touch.”

“Yeah, well,” he said, barely audible now, his fingers twitching once against your stomach before relaxing, “you’re here now.”

That quieted you.

Because it wasn’t said dramatically. It wasn’t even said sweetly. It was just true. And in that moment, it hit you: in this war-torn, half-dead, primitive second life, Senku had lost a lot. Most things, maybe. But you? You were one of the few things he got back.

And apparently, he wasn’t planning on letting you go again.

“…Do you do this with everyone?” you teased lightly, trying to shake off the tight feeling in your chest.

“Hell no,” he said without missing a beat.

And you felt his arm tighten around you again—like an instinct. Like a reflex.

“Just you,” he added, softer this time. “Don’t make it weird.”

Too late, you thought, cheeks warming.

But you didn’t move. You didn’t want to.

Not when his touch—awkward, unconscious, needy—was the warmest thing left in this world.

Literally just a guy lmao

Thinking of the dynamic between S/O and Senku’s friends. Ofc she’d already be friends with Taiju and Yuzuriha, but what about his new ones.

Ryusui definitely gives “Man Senku your girlfriend is hot”😭😭

And thinking of how they imagine her before seeing her face to face, going by how Senku describes her by her interests and intellect. They imagine her as the most stereotypically nerdy and geeky looking girl and look surprised when she’s just a normal ass person😭

Love this

Imagine Luna being Obsessed with Senku's Ex...

Senku Ishigami x Reader

Song Inspo: Loosely based on Obsessed by Olivia Rodrigo

A/n: I just wanted to write this idea out but anyone is welcome to expand on it!

After Senku agrees to be Luna's boyfriend, Luna is at Bar Francois complaining about how nothing has changed.

"Because obviously nobody'd ever be that outta line...right?"

Luna learns that Senku is that outta line. Leaning how he got married for the sake of science and even being a divorcé.

But it's what Yuzuriha says that Luna's obsession begins with you.

"It also doesn't help that he's fresh out of a relationship as well..."

Suddenly Luna is trying to wring as much information out of them.

Learning your name, how you look, how'd you met Senku, how long you were dating, but what she couldn't figure out is why the both of you split. Which of the two broke things off? She begins her investigation.

Suddenly she looking at the passengers of the ship and trying to figure out which one of them is you.

It doesn't take much because there you were standing beside Senku.

She spys on you both. Watching as you joke with each other, the distance between the two of you becoming non-exsistent.

How is that you got this version of Senku? Why isn't he likes this with her?

How do you get him to touch you so casually? His hands lingering on your back while you show him blue prints of your newest creation. There was no space between the two of you.

How do you get him to be so vulnerable. A soft smile as he listens to you. Complimenting your mind and your ideas.

Why did the two of you break things off when it's clear you still love each other?

Her attention is now on you. She begins to follow you. Studies you. Learns more about you. Wrings more information from your friends. Why you and not her?

Basically through Luna's perspective she notices that you two never moved on from each other.

𝐘𝐎, 𝐈'𝐦 𝐛𝐚𝐜𝐤 𝐛𝐛𝐠. (𝐈'𝐦 𝐬𝐨𝐫𝐫𝐲 𝐈 𝐥𝐞𝐟𝐭)

{𝐑𝐄𝐐𝐒 𝐎𝐏𝐄𝐍}

hello! I'm a masc reader, but gender neutral is just fine.

i wanted to ask for a one shot with senku, sorry for my English, is not my first language.

reader is a super affectionive person, but thought senku hated being touched, maybe that causes a misunderstanding? im really bad with plots haha you free to do whatever, but maybe add a flustered senku?

Senku being secretly desperate for touch is everything

The writers block I had working on this was insane-

x gn!reader

“Hey!” You’re always so excited to see him, a fact that makes him feel rather smug. He plants his feet, preparing for the hug he knew was coming. Even if he rarely hugged you in return, you never had any issue wrapping yourself around him.

It drove him insane. 

Not in the sense that he hated it. He actually liked how you feel against him a lot. Arguably too much. There were times your hands on his body made his brain short circuit. And somehow, you never seemed to notice what your touch did to him.

“Long time no see,” Senku says, grinning at you. It had only been a few hours, but he’d missed you regardless. You simply hum in response, nuzzling your face into his neck. There was no way you couldn’t feel how hard his heart was beating, or how much warmer he felt now that you were pressed so dangerously close. 

“Oh-” It’s as if a switch flips in your head, and suddenly you’re pushing yourself back, putting distance between the two of you. “Sorry! I forgot you don’t like that very much.” 

Damn.

Recently, you’d come under the impression that his lack of reciprocation came from a hatred of touch, which could not be further from the truth. But he’d consistently failed to correct you, worrying a little that you’d feel uncomfortable if you knew how desperate he was for your affection. 

3700 years of petrification had definitely changed him, that was clear. 

“No problem,” He says, unable to fully hide his disappointment. “I need help in the lab today. Ready to get to work?” 

You nod, smiling brightly at him. The two of you walk together, Senku occasionally letting his shoulder bump yours just to see the way you brighten when you touch. 

It really was your love language. You liked to touch and be touched, and he hated how hard it was for him to meet you where you needed him to. Between how flustered it made him nowadays, and his lack of desire to be touched in the old days, he knew you thought he wanted little to do with your preferred kind of affection. He needed to change that, and soon. He hated the way your inner light dimmed when you felt like you had to pull away from him. He’d always hated it. 

The lab is big enough for both of you to work separately, but Senku scoots closer and closer to you as time passes, eventually ending up practically on top of you. 

“Am I in the way?” You ask, looking at him with a small frown. 

“The opposite actually,” He says. “You aren’t close enough.”

You turn and look at him, eyes wide and confused. Maybe now wasn’t the time, but he’d opened his mouth without thinking first. 

“Do I need to be close?” You ask.

“I need you close all the time,” He says. “Otherwise, I can’t think.” 

You make a soft oh sound, eyes refocusing on the task at hand. The lab falls into silence, but Senku swears he can hear the wheels in your head turning as you take your time digesting his words. You were thinking over his statement carefully so that you could give a proper response. 

“Senku?” You murmur his name after a while, shifting to press your shoulder more firmly into his. 

“Hm?”

“Do you…like being touched?” You ask, eyes flitting to his face for a brief moment before they return to watching what you were doing. 

“Not always,” He admits. “But if it’s you, yeah.”

“Just me?” 

“No one else feels as good,” His voice may be calm, but he was internally panicking. He was essentially confessing his feelings to you, giving you the chance to turn him away and distance yourself forever.

“You…think I feel good?” You ask, a sly grin beginning to form on your face as the implication of what he’s just said starts to set in for you both. 

“Very,” He says, grinning when you giggle, noting how red your face goes. 

“How vulgar,” You tease. 

“I never said I was a good boy,” He teases right back, sending you into another fit of amused and slightly flustered giggles. 

“No you did not,” You agree, taking a breath to calm yourself. “So…does this mean I can touch you more often?”

It’s his turn to pause, to think about what you’re really asking. 

“Yeah,” He says. “If you want.”

Wait about witch reader... I think after the shock senku might thinking it was psychic, it's more logical how human brains can do it if get trained or gifted for some people. The most common one is telepathy (which some have especially between a twins) or telekinesis if get trained enough...

Ohh witch!reader definitely can be equal to several man's power if they can do telekinesis

(Sorry this is rambling, and I understand if it's not make senses at all)

Never apologize for rambling at me I love it

Once magic is confirmed to be real to him, he would be all over all types of magic.

How do they work?

Can they be measured?

Are power levels a thing like in media?

His entire perspective of how thr world works has shifted, but that just makes the science of it all that much more fun to him.

Hello! This is 🦐 annon here!

I have made this request before for another writer but I wanted to see different visions on this.

Imagine a witch reader that has a connection with nature and uses it to help the Kos while not caring about keeping her nature a secret. In the meanwhile, senku notices this but tries to get a logic explaining every time because for him there is no damn way witches existed all the time and no one really notices. So one day while Perseus is almost finished, reader asks to borrow the ship for just one night, and when Ryusui asks why, reader just says: "oh, I want to make a protection spell so your journey won't be hard in the sea!". Senku hears that and ALMOST says it's illogical, but this idea pop in his mind that he just waits until the night and follows reader to the ship, trying to figure out this magic witch thing. Just to get completely shocked when he saw the true nature of a witch in her action, the power that floats around reader while she cast the protection spell on the Perseus.

Don't know how to flow after that, it's up to you! Hope you have a great day!

Hello shrimp anon!

This fits so well with my horror/fantasy AU because magic would totally be more effective in the stone world

Old spirits and creatures from folklore he could accept. This was the stone world after all. Once humans were no longer an issue, anything that had been hiding from them was sure to start coming back around. 

But magic? That was harder to believe.

Physical beings could be studied. If they were intelligent, they could be interviewed. But magic was little more than a concept. Something that was just science mixing with superstition. There was no evidence that it was-or ever had been-real. But it made you happy to believe that you could do it, so he just let it go.

“Ryusui!” Senku’s head turns at the sound of your voice. It was getting late, everyone needed to get some sleep so that tomorrow could go smoother. He watches from where he was sitting a short distance away as you walk with a little extra pep in your step right up to the captain of the Perseus. 

He doesn’t hear what’s said between the two of you, but whatever it is has Ryusui’s eyebrows rising, one of his big, slow grins spreading over his face. 

“Of course!” Ryusui yells. “I want it!” You laugh, your head nodding in agreement. Then you turn, and walk off. 

“What was that all about?” Senku asks as he approaches the other man.

“They’re going to put a magical barrier on the ship!” Ryusui says. “I’m not totally sure I believe in all that, but when we’re on the open sea, we’re going to need all the help we can get. Am I wrong?” 

“No, you’re not wrong,” Senku says. It was just something you were doing to make yourself feel better about the long journey ahead, and nothing more. 

Wishing Ryusui a good night, Senku wanders the direction you’d gone off in. If you were going to mess around the ship in the middle of the night, you should at least have someone nearby in case something happened. Besides, he would be lying if he said he wasn’t at least a little bit curious. He’d never actually seen you cast your spells before, so he wondered just what went into something like this- whether it was real or not. 

He trails after you quietly, and you either don’t notice him or don’t care, as you never once look back or try to speak to him. Maybe you were mentally preparing yourself, reciting your spell in your head so you didn’t stumble over it. You could be making a list of things you had to do, or what you needed in order to accomplish whatever it was you were planning. 

He appreciated your meticulous nature. 

When you reach the Perseus, you sigh out a soft ‘okay!’ and start up the ramp, hands digging through the little bag you always kept on your hip for your ”spellwork”. He follows you up onto the deck, and finally speaks up.

“So, what’s the plan here?” He asks, watching you stoop down to draw something on the wood with a piece of chalk. 

“Protection spells are usually really easy for me, but this one has to be big, so I’ve gotta make sure I do it right,” You say, not fully answering his question.

“Anything I can do to help?” He may not be a believer, but you two were on the same team. He had no issue helping set up candles or tying herbs together for you. 

“Um,” You pause, standing back to your full height and putting your hands on your hips. “Actually, yes. Can you come hold something for me real fast?” 

“Sure, alright,” He says, following where you point him to. Once in position, you pull that something out of your bag. The one thing you don’t let anyone look at too closely. 

Your spellbook is heavier than he’d expected, and he nearly drops it when you dump it in his hands to hold for you while you open and flip through it quickly. It takes everything he has not to stare at the pages of formulas and try to work them out. 

Magic sure looked a lot like math in several places. But you turn the pages too quickly for him to gather much information. He makes a mental note to try to convince you to let him see it again another day. 

“Oh- this one!” You stop at a page within the first quarter of the book. Smoothing your hands over the page, your eyes dart across the stone age paper, muttering under your breath as you read your own scrawled notes. Once satisfied, you take the book from him, slapping it shut and shoving it back into your bag. 

So, it was more of a reference book than anything else. Interesting. 

“Okay, so,” You take a breath, stepping into the middle of your lines of chalk. “This should be super fast.” 

“Anything I need to do?” He asks. You shake your head. 

“You can just stand there and watch.” 

Fair enough, he supposed. Though, it wasn’t like anything was going to happ-

You close your eyes and inhale a long, slow breath. The air around the two of you changes, the breeze whipping around you and tugging at clothes and hair. It wasn’t anything crazy, but it was enough to get his attention. 

His heart beats hard in his chest. Even though there were no bright flashing lights or words spoken, he could feel the shift in the world around him. The way the wind swirled around you, how the water calmed to near perfect stillness, and how the trees seemed to stretch their branches towards you, reaching for you as if to give you their power. 

When you exhale and open your eyes, he’s not even sure he’s looking at you anymore. Your gaze held something in it he’d never seen in another human being. Hell, even the spirits he’d been having to shoo away from everything for the past few years didn’t look like that. 

His mind races, trying to find a reason for everything. Maybe the weather was having a sudden turn, or maybe he was exhausted. Maybe he’s even inhaled something and is massively hallucinating. 

But something in him, something deep in his blood and under his bones, told him that it wasn’t that simple. That what he was looking at had no logical explanation. That magic had no logical explanation. 

He’s still reeling from the experience when you put a hand on his shoulder, startling him. 

“Hey, you okay?” You ask, worried. 

“What just…” He doesn’t know what to say, or what to do. A smile creeps onto your face, slow and knowing. You pat him on the shoulder before reaching to take one of his hands and start pulling him along with you back off the ship.

He looks back over his shoulder, eyes catching sight of the lines of chalk you’d just been standing in. He watches as they fade into little sparkles of dim light, each speck sinking into the Perseus and strengthening it. 

“We aren’t going to make sure it worked?” He finally manages to ask once his feet hit the dirt. 

“It worked,” You say with a soft hum. 

“How do you know?”

“I just do.”

if its not too much, can you make a fic on evil scientist senku? (and maybe the s/o and general should be seperate if thats okay TvT)

(i will send the art which affected me in this way in a separate ask, since i would like to remain anon)

Okay but that art was such a vibe and I'm totally here for Senku being a little crazy.

I did something a little funky here, but I hope you enjoy it anyway

x gn!Reader

Senku Ishigami wasn’t evil.

Evil implied that he was torturing and murdering people for fun, and he had far too many better things to do than all that. Like helping his mentor do calculations, building his rockets, and testing chemicals on rats to see how effective they are. None of that made him evil. Just passionate about science. 

That’s what Xeno told him. And Xeno was always right.

Senku in this world let himself be swept up in Xeno's darkness

Science was so powerful, it could do anything

And Senku wanted to do everything

Even if it meant twisting his morals until they were no longer recognizable

In public, he's actually pretty much the same as he's always been

Bored, a bit distant, and a little eccentric

He's still friends with Taiju and Yuzuriha, though they don't subscribe to his way of thinking

His friends are actually very concerned and have voiced their worries many times to teachers, who have just waved it off

Because to them

He's a perfect student

There's no way he's that far gone

(he is)

The stone world is like a godsend to him

No laws means he doesn't have to worry about what he can and can't do

A master manipulator and still somehow manages to get the Ishigami village on his side

The only time he thanks Byakuya for being so sentimental

He does still want the world back to some state of normal though, and is trying to restore parts of it

When he and Xeno reunite, he jumps on the offer to merge their kingdoms together

Becomes his mentor's left hand (since Stanley is his right)

He narrows his eyes down at you, unamused by your invasion of his privacy.

"What the hell are you doing in here?" He asks.

You have no excuse, you'd just been curious about what he did in his lab all day that no one was allowed to see.

You bulldoze your way into his life

Literally

The first day he meets you, you're in his lab uninvited

And that little habit of yours continues

He can't decide if you're just as twisted as he was

Or just that stupid

Xeno encourages him to take you as a better apprentice, since you seem so curious

He tells Senku it might help with his "research" to have an extra pair of hands that isn't constantly questioning what he's up to

Either way, he can't seem to get rid of you, so he let's you float around him

It was better than you messing something up when he wasn't looking

At least if he was around, he could keep you from getting hurt

Not...that he cared

...

Okay, maybe he cared a little

Refuses to admit he falls in love with you as quickly as he does

But you listen to him, and you're patient with him, and sometimes you really are as crazy as him

Sometimes crazier

You're his version of Stanley

Can you please make Senku alphabet? Sfw or nsfw, i don't mind. Thank you in advance🫶🏻

Because you asked so nicely, I did both :3

(please note that I had to look this up because I've never done one of these before so if it looks off I am so sorry)

SFW

Affection: 

Senku is surprisingly affectionate. He’s very much like a cat, where he’ll act all huffy about it, but the moment you reach for him, he’s reaching right back. 

A master of giving his partner gifts that he knows they’ll like.

Best friend: 

The friendship could start a couple of different ways, depending on whether you meet before or after the petrification. 

Regardless, once you are friends, you’re friends for life. 

Senku is a great friend. He pays attention, and cares even when he doesn’t show it. 

Cuddles: 

Big cuddle fiend, no I will take no criticism. 

Likes to lay on his back with you curled against his side with your head on his chest. 

Spooning becomes big for him after petrification, when he starts to get anxious about you vanishing due to the fear all this being a wild fever dream he’s having

Domestic: 

Senku wouldn’t mind settling down one day and having a family once things are a little calmer in the world. 

Having had to live by himself since Byakuya was gone most of the time, he’s pretty good at keeping house, even if it’s not his favorite thing to do.

Ending:

If he sees it coming, he’ll try to beat his you to the punch

Calm and casual about it, as best he can

Is extremely hurt, but otherwise accepting if you surprise him with it

Mourns quietly on his own, regardless of who ends the relationship

Fiance(e):

Senku has thought about marriage for a long time. 

About the concept of marriage, I mean

And eventually decided that, yeah, he’d like that

To have a partner by his side for the rest of his life that he can be vulnerable with and trust sounds pretty great, honestly.

It would take a while though, before he approaches the subject

A few years, at least

Marriage is a big deal, and he ten-billion percent does not want to have to go through a real divorce (what he did with Ruri does not count, he swears)

Gentle:

He’s not always the best at being gentle with his words

He knows this

He can be pretty harsh, even if what he’s saying isn’t meant to be that way

Emotions can be hard for him sometimes

Senku is pretty gentle with his hands, though

He’s used to working with delicate equipment, so he knows how to mind himself

Plus, the last thing he wants is to accidentally hurt the people he loves

Hugs:

Do not let Senku Ishigami lie to you

He loves hugs

Will a lot of times come up and just lean his body on you until you wrap your arms around him and tug him close

Likes to wrap his arms around you and bury his face in your hair or neck and just exist in your arms

I love you:

It comes out of nowhere

He says it in the most nonchalant way possible too

You’re not even sure you heard him right at first

But when you say it back, a bit hesitant, his face lights up in the same way it would if he was looking at one of his precious science projects

Jealousy:

DO! NOT! LET! HIM! LIE! TO! YOU!

Senku gets jealous 

Easily. 

Will never take it out on you

Mostly pouts and gets huffy

But if someone gets a little too close…

Let’s just say that Senku knows plenty of science tricks that he has no issue whatsoever showing off. 

Kisses: 

The kisses that everyone else gets to see are quick 

Just little pecks on your lips or cheek

The kisses that are just for you two are deeper

He’ll pull you close, and kiss you like he needs it to breathe

Little ones:

Says he doesn’t like kids

But is so good with them

He radiates big brother energy

(and totally wants some of his own one day)

Morning:

Quietly

He likes to take his time waking up and letting his brain start working

Will turn over in bed and curl around you to steal five extra minutes of time together

You take turns making breakfast

Night:

Just as quiet as mornings, usually

Night time is when he is at his most affectionate

It’s the time the two of you get alone the most often

Likes to sit with you and lean against your side, soaking in the warmth of your body

You talk about the day while you make and eat dinner

But after that it’s just lots of soft touch, murmured words, and heavy eyelids

Open:

Senku keeps a lot of things close to his chest

It takes time for him to let you peel away his hard outer shell to see the soft parts of him underneath

Patience:

Science requires patience

So it’s something he’s learned to master

Can lose his cool pretty quickly, but it’s rare

Quizzes:

Will tell you he doesn’t remember things about you

This is a lie

Senku stores away everything you say to him

And will keep it in his brain forever

Remember:

He has a few favorite memories of you

The one that he thinks of most often, is something you never even think about

It was a quiet moment between the two of you, pre-petrification

You’d been hanging out in his room, lazing on his bed while he sat on the floor next to you and worked on his rocket

And he’d misplaced something small- a screw, if he remembers correctly

He’d been so frustrated, muttering curses under his breath

Then, he feels the smallest tap

And when he turns, ready to snap at you for bothering him

You’ve got a spare screw in your hand

You weren’t even looking at him, eyes still focused on the book in your hand

When he asks where you found it, you just say

“Oh, I had one in my pocket.” 

You’d apparently started carrying little bits and bobs like that around not long after the two of you started dating

Just in case he ever needed it

It’s a memory you don’t recall, but Senku does. 

He remembers how it felt to be seen by someone, without having to ask.

Security:

Senku is fairly protective

Prefers to know you’re safe

But he also won’t always stop you if you want to do something dangerous

He might just insist on going along, or having you be accompanied by Tsukasa or Taiju

Try:

Pretends not to put a lot of effort into romantic things, but totally does

Is more motivated to do everyday tasks by you doing every day tasks

If you’re tidying your shared living space, cooking, or just working on something on your own, he’ll always get up and help or keep you company even if you didn’t ask

Ugly:

Senku, though he feels emotions pretty intensely, is terrible at showing them when it’s important

It’s like pulling teeth, sometimes

Vanity:

Senku knows he’s handsome

Won’t act all proud about it, but if you comment on it, he’ll give a smug little

“Yeah, I know.”

Whole:

In the beginning, being apart from you is easy.

But as time goes on, and he gets more and more attached

Separation becomes rare

He doesn’t want to be without you, even for the smallest of reasons

Especially post-petrification

Xtra:

Senku talks to Byakuya in the stone world

Sometimes you’re with him, sometimes you’re not

But he’ll look up into the stars, eyes searching the deep recesses of space, and talk to his dad.

Mostly done when his post-petrification depression hits him really bad

He just really misses his dad okay

Yuck:

It irks him that there are people who won’t do their own work and research

Has yelled “Just fucking google it!” multiple times in his life after an argument has gone too long

Is the person who, if he’s in a group of people for a project, and those people try to dump all the work on him, he’ll just

Put his name only on it and turn it in for all the credit

“They didn’t do any work, they don’t deserve the points.”

Zzz:

Needs extra soothing to feel safe going to sleep post-petrification

Sleeps mostly on his side

Will often radiate towards you in his sleep, seeking your extra warmth

NSFW

Aftercare:

A quiet affair

Helps you clean up

Loves post sex showers for the soft intimacy of it all

Skin to skin cuddling afterwards.

Body part:

Honestly isn’t that picky

Cum:

Will not cum inside you [if you have female anatomy] without assurance that pregnancy is not an immediate concern

If you’re protected from, unable to have, or are actively trying for kids, he has no issue

Loves the sight of it spilling over your lips after giving him oral

Dirty secret:

“Accidentally” stole some of your underwear after you did laundry at his apartment while your power was out for a weekend

You haven’t seen that pair since

Experience:

You’re his first (and preferably only)

Understands the basic concepts of what to do and how to do it, but has to be taught the smaller details

Favorite position:

Prefers when you ride him

But will try new positions as frequently as you want

Goofy:

Is not afraid to make jokes with you during the act

Hair:

He doesn’t have a lot of hair in the first place

But he keeps himself fairly well groomed nonetheless

Intimacy:

Depending on his mood, Senku can be super intimate during sex

He just wants to hold you, to be as close to you as he physically can

Likes to press soft kisses to you in moments like this

Fucking you slow until you both are so wound up he can’t help but lose control a little

Jack off:

Pre-petrification, it was a pretty regular thing

Every couple nights or so, as the mood struck him

Post-petrification, though, he doesn’t have much time for stuff like that

Get’s pent up due to being too tired to pleasure himself and will definitely ask you to do it for him

Kink:

Sensation Play

Location:

Prefers having sex at home

Bed, home office, the couch-

Can, has, and will fuck you in the lab so long as there is little to no risk of anyone walking in

Motivation:

Soft touches down his chest

Fingers tugging at his belt

That look

Sneak peaks at what you are (or aren’t) wearing under your clothes

Taking his hands in yours and pressing them to your own body, encouraging him to touch you even more

Clear and obvious consent

No:

Not into threesomes or being cuckolded

Nothing involving bodily waste

Oral:

Is honestly not the best at it, but he’s determined to improve

Loves the under-the-desk blowjobs you give him while he’s working

Pace:

He keeps a pretty steady pace through most of the experience

Has learned through careful experimentation how you like it the most

Quickie:

Loves a good quickie

Will just grab you and pull you into somewhere quiet and private and bend you over

If you don’t get to cum, he finishes the job later

Risk:

Experimentation in the bedroom is a yes

There are some things he won’t do (see above), but he’s down to try new things pretty often

Stamina:

Has average at best stamina, but a high sex drive

So long as he gets at least a little break in between rounds, he can go all night

Toys:

This man loves himself a vibrator

He likes the way it feels running over his more sensitive areas

Also likes using them on you, especially if he’s out of juice but you still need to finish

Unfair:

A menace

Will get you all hot and bothered

And then walk away 

Volume:

Not super loud

Mostly panted breaths and soft moans

Likes to dirty talk at you

Wild card:

Is a lot stronger than he looks, and can hold you down if he really wants to while fucking

X-ray:

A little bigger than average, but nothing crazy

Everything down there is well maintained and clean

Yearning:

Very high sex drive

If it wasn’t for his shitty stamina and world-saving mission, he’d be at it all the time

Zzz:

Loves dozing while having post sex skin to skin cuddles

Tries really hard not to fall asleep super fast

But if it’s late, and you’re both exhausted, he’ll be out like a light the moment you’re both clean and are snuggled back together

I really love your writing. Could you do a fic inspired by the song undressed by sombr about Senku and the reader (only if you have the time and the energy to do it)? "I don't want the children of another man to have the eyes of the girl I won't forget" hits HARD. A good ending or angst ending is fine with me, I just like the idea. Please remember to drink water and take care of yourself <3

is

is this a breakup song

why would you do this to me

Senku loved you. 

Even though you’re no longer at his side, you were still cemented in his heart. 

You’d wanted more when you were with him. Things he couldn’t give you at the time, that he hadn’t been ready for. Things your new lover seemed more than happy to offer up. He knows that, logically, he should move on. But the idea of trying again with someone who wasn’t you made him feel sick. 

You were the one who’d made him happiest, who taught him things about himself that even he hadn’t known. You’d been his safe space, the person he could be fully open with and never worry you were going to run away from what you saw. You’d pried apart his armor, and exposed the soft parts of himself. 

He didn’t want to have to do it all over again. He didn’t want to learn to know another person the way he’d known you. He didn’t want to lay in bed with someone, wishing it was you. And, perhaps most selfishly, he didn’t want to see you on the street with a child that had your eyes and wasn’t his.

You had every right to move on, to find someone who could give you what you wanted, and he knew that. Of course he knew that. But that didn’t mean he had to like it. It didn’t mean he couldn’t stay up all night hoping you showed up on his doorstep. 

It was the most pathetic he’d ever felt in his life. He hadn’t even felt this helpless while he was trapped in stone. You had done something to him. Broken something in him that would never heal again.

You’d loved him, and he still loved you.

Relationship Headcanons: Senku Ishigami

x gn!reader

!!Mild manga spoilers!!

SFW

You ask him out on a dare

Not to embarrass either of you, or pull a nasty prank, but because no one thought he'd say yes

Senku never accepts things like this. Ever. It's not his thing.

So you're prepared for him to look down his nose at you and give you the same cold denial that he gives everyone else but...

He doesn't.

He blinks slowly, processing your request, then shrugs and just says

"Sure, but I'm picking where we go."

It turns out that he already had plans to go to a science museum that weekend and just decided to take you along for the hell of it

He buys you ramen after at his favorite place and walks you home

You press a quick kiss to his cheek before going inside, just to see how he reacts

He rubs the back of his neck, then itches the inside of his ear, then he just grins at you with red cheeks, then admits that he'd been wondering for the last hour if you'd let him kiss you

You're inseparable from that night onwards

He's not always available, but he makes up for it during the time you are together

Certified yapper

Gets rather smug if you shut him up by kissing him

Pre-petrification, Byakuya loved you, and asked Senku how you were doing all the time

Taiju and Yuzuriha also both love you and are always so excited when you join the three of them on an outing

Amazing hugs no you cannot tell me otherwise

Gift! Giving! And! Quality! Time!

Will give you surprise kisses at random times regardless as to if you're in a conversation with someone or working on something he really will just lean over, press his lips to yours, then go right back to whatever you were both doing

Literally does not have a jealous bone in his body (this is a lie told by Senku)

(Absolutely does get jealous)

(How else do you explain the time a guy who made a move on you in high school ended up with a homemade glitter bomb in his locker that shit was everywhere for WEEKS)

(And don't get me started on Ryusui that man has gone through the wringer just for looking at you in that way)

Let's you lay in his bed while he works next to you

You often wake up the next morning with his face in your chest, arms and legs all tangled (he doesn't do it on purpose he swears)

Will often just lean on you like a cat if he's feeling tired or stressed

Loves the way you smell and does everything in his power to recreate your favorite perfumes/colognes/scented washes in the stone world

Loves it when you're just as much a chaos goblin as him

Holds your hand whenever you go somewhere together (especially post petrification)

Remembers! Your! Birthday! And! Anniversary!

Not the biggest party guy, but will go all out just for you

After reviving from the petrification, Senku will sometimes come and lay with his head on your chest just to hear your heartbeat in the silence of the new world

He's desperate for normalcy and you are the only one he thinks can truly give him what he needs to keep it together

Will always look up from what he's doing if you call his name

NSFW

Your first time was probably before the moon mission lets be so real here

Neither of you had been in a rush before or after the petrification, but now there was a possibility he wasn't coming back

There is extensive conversation beforehand about what to do to make sure you're both safe and smart

It's quick, it's a little awkward, but it's perfect nonetheless

Once he's back home, he makes sure to do it again with you as soon as possible

And then never stops

Has a surprisingly high sex drive, though his average at best stamina means there has to be breaks between rounds

But trust me

There are multiple rounds

Loves it when you ride him

Has definitely bent you over his workstation more than once

If you leave marks on him he will display them as openly as he can and not give the smallest of shits about it

Stronger than he looks and can actually hold you down if he wants to while fucking you

Is a total brat when you try to dominate him but will lowkey panic if you threaten to stop and can be convinced (easily) to beg for you to keep going

Loves to experiment with new things just to see what does and doesn't feel good for both of you

Has joked at least once that the only time he believes in God is when you're sucking his dick

Aftercare is a quiet affair with him helping you do whatever you need

Likes to shower with you "to conserve resources" (he likes the intimacy of washing each other don't let him lie to you)

Skin to skin cuddles in bed with you laying on his chest while he talks science until you both doze off

Red's Dr STONE Masterlist

Because I think I need this now

Idle Thoughts

Senku Counts Himself Awake

Senku Needs A Nap

Why I Love Senku

Senku and Emotion

Dr STONE Characters and How They Are Drawn

Senku Is Not Physically Inept

Senku Might Be Vaguely Suicidal

Dr STONE Has Horror Movie Potential

Horror Movie AU

Stanley & His Hair

StanXeno: Ultimate Girl Dads

Considering Tsukasa x Gen

Gen and Makeup

American Colony Has Cannabis

I'm Feral For Sai Nanami And I Will Not Apologize For It

Fics/Headcanon Lists

To the Moon and Back

Fanfiction Dream

To the Moon and Back (Senku x OC on ao3)

Last Texts Between Senku and his Long Distance crushFriend (Senku x OC)

Senku's First Stone World Letter (Senku x OC)

Texts Between Senku and Odie (Senku x OC)

A Segment of a Letter (Senku x OC)

Senku is Only Human (Senku x OC)

Senku Finds Odie in a Picture (Senku x OC)

Senku Has Some PTSD

Senku and Odie Friendship (Senku x OC)

More About Odie (Dr STONE OC)

Stanley and Odie: Complicated Siblings (Dr STONE OC)

The Snyder Siblings: A History in Complication (Dr STONE OC)

Any

Platonic SenKasa

Platonic SenKasa + Nightmares

Senku vs Siren

Character Music [feat. Senku, Gen, Tsukasa, Stan, Xeno]

Xeno helping Stanley with Nicotine Withdrawals

Stanley vs Nicotine Withdrawals p2

Yo in Uniform

Xeno Getting Pulled By His Tie

Evil Scientist Senku (with a dash of x reader)

Senku Witnessing Witchcraft

Senku + Witchcraft Thoughts p2

StanXeno: Girl Dad Beginnings

Stanley vs Bullet Fairy

Dr STONE Partner Getting De-petrified Instead of Suika [mild manga spoilers]

Dr STONE Partner Getting De-Petrified Instead of Suika p2

Senku Ask NSFW Headcanon

Ukyo + Mermaid Girlfriend

Manolo x Tsukasa First Kiss (friend oc x canon)

Manolo x Tsukasa Angst (friend oc x canon)

Gen x Tsukasa Flirting Fails

x Reader

StanXeno Adopted Child x Senku (x Reader)

StanXeno x Reader

Senku With An Unhinged Partner

Ryusui Nanami and the Only Girl He's Ever Had to Chase (x Reader)

StanXeno x High School Sweetheart (x Reader)

Stanley x Senku's Older Sister (x Reader)

StanXeno With A Partner Who Crashes Out Starting Thoughts

StanXeno With An Insomniac Partner

Gen With Someone With Similar Skills As Him

What if [reader] Doesn't Like Stanley Smoking?

StanXeno x Reader Relationship Confusion [fic]

Gen Crushing on Senku's Historian Sibling

StanXeno x Reader High School Sweethearts

StanXeno x Reader Rollerblading

StanXeno Soft Yandere/High School Dates w/ Reader

StanXeno x ace!Reader

StanXeno x Depressed Reader

Ryusui x Reader Childhood Friends to Lovers

Ryusui x Reader Childhood Friends to Lovers p.2

Ryusui x Stanley x Reader Smut/HCs

StanXeno x Reader (sort of) If One Of Them Dies

Gen x Depressed Reader

Xeno x Reader with an Eating Disorder

Birthday Celebrations

Ryusui Is Always Ready To Celebrate Your Birthday

StanXeno x Reader [Stanley Takes Care of his Partners]

Gen NSFW Headcanons

Contact [Tsukasa x male!Reader]

Tsukasa x male!Reader Injuries

StanXeno x Reader Vacation Day

Ukyo x Reader [lullaby]

Senku x Reader Breakup

StanXeno x Reader [Full Government Name Panic]

Touchstarved Headcanons

Senku

Stanley

Xeno

Ryusui

Tsukasa

Gen

Ukyo

Relationship Headcanons

Stanley

Gen

Xeno

Senku

Ryusui

Ukyo

Tsukasa

SFW/NSFW Alphabets

Senku

I lied I wasn't done with this idea so have a highly edited version of my vision

Senku and his mildly crazy partner

Everyone thought that Senku, Taiju, and Yuzuriha were a trio.

Until Taiju comes running one day during the building of the Perseus, a statue held over his head, screaming from the top of his lungs

"Senku!!!! Look!!!! Look who I just found!!!!"

No one has seen Senku drop everything he's doing that quickly before.

That's how the kingdom of science finds out that the trio is actually a foursome. A quartet.

That's also how the kingdom of science finds out that the reason Senku seems so adverse to romantic relationships is because he's already in one.

They adapt to the stone world quickly, though they stick pretty close to Senku throughout the day

They don't appear to be the jealous type, getting along easily with Ruri, and seeming to pay no mind to any other girls who may be a little too sweet on Senku

But sooner or later, the truth comes out

Senku's partner is more than a little unhinged

They are the reason Senku knows what chemicals can be used to effectively melt corpses

Among several other concerning things

It becomes clear that their usual pleasantness can (and will) be dropped at the snap of a finger

Their usually pleasant smile will twist into a more sinister one when they get angry, though their voice may remain calm and light

They'll tear someone apart verbally first, but if that doesn't work, well, just pray there isn't anything they can hit you with

(There is always something they can hit you with, even if it means Senku loses dangerous chemicals out of the lab.)

Senku is fully aware of everything they can/have/will do, and openly thinks it's hot

When compared to Stanley, their response is simply:

"Nah, I'd win. He has more morals than I do."

Touchstarved Headcanons: Senku Ishigami

x gn!reader

lmk who you wanna see next

General:

Senku never used to be big on touch pre-petrification.

Not necessarily because he didn't like it, he just never thought it would be something he ever missed.

But then he's frozen, blind and deaf, for 3,700 years, and suddenly, he craves it.

Suddenly, he finds himself holding onto people, rather than brushing them off. He offers high-fives on his own accord, opens his arms when Suika wants hugs, and so on.

With His Partner:

The minute you touch him, even if its the smallest of grazes, he melts.

He leans in, pressing his face or body further into your hands, sighing at the feeling of their touch

If you play with his hair, it's game fucking over

Hope you don't have anything to do for the rest of the day because Senku is not moving, not even for the sake of science

He starts seeking you out and leaning on you with his full body weight like a cat

HAS to sleep with you, and if you can't share a bed/cot/sleeping bag, expect to have him as close to you as possible, a hand on you at all times

Skin to skin is highly preferred (not in a nsfw way)

He just likes to feel how soft you are, how warm your skin is

hii idk if u take request but i love ur thoughts on drstone so i was thinking a fem reader (if possible) that is stanxeno adopted daughter and she is like outgoing but shares interests with her parents (she's raised right) and she is part of the american colony . Senku x reader if possible ty

I ABSOLUTELY TAKE REQUESTS

This took way too long and I'm not the most happy with it but I'm a little rusty please forgive me

Senku x Reader: Beginnings (776 words)

Living in the stone world with your fathers was hard enough, but having very few others you could relate to made it even harder. Especially when one of those people was Luna, who was definitely a little into both of your parents, which could be mildly uncomfortable. So when you caught wind of a fledgling Kingdom of Science filled with people who were around your age, you practically threw yourself at the opportunity to get closer to them.

Stanley was going to have an aneurism when he found out you’d left home without permission, but you'd deal with that later.

The mechanical insides running the so-called science vessel Perseus were absolutely amazing. These people had oil! Gasoline! Your colony was stuck with wood and charcoal, you had nothing on all this!

"Pretty exciting, yeah?" Your guide, a young man who'd introduced himself as Senku asks, grinning over his shoulder at you. He seemed to be one of the few who actually spoke English, and you were awfully grateful for that.

"It's amazing! I'm really super impressed," You say, grinning just as wide. Senku nods, arms crossing over his chest as a look of pure pride covers his face for a moment, before you catch the way it twists into something else. 

“So,” He says, voice dropping to a more serious, and vaguely wicked tone. “Now that you’ve seen our ship, what’s say you and me have a nice long conversation, hm?” 

“A conversation?” You tilt your head to the side, still smiling. “Weren’t we just having one?” 

“Sure, but I’ve got questions, and it seems only fair that you take the time to answer them for me,” Senku snipes back, mimicking your action. 

If your fathers found out how quickly you folded just because a boy your age looked at you like that, you’d be locked in your room for the next six to ten years. 

-

You were an enigma to him. You’d come all the way to the Perseus by yourself, with no apparent motivation other than scientific inquiry. Senku hadn’t even needed to use any kind of underhanded tactics to get you to talk. You were freely open, and appeared to be fairly honest in your responses to his questions, claiming that there was no point in your lying to him. 

You told him that Doctor Xeno was your father, but that you hadn’t told him you were coming all this way, and had gone into far more detail than expected when Stanley Snyder’s machine gun had been brought up, rambling about its specifications for a solid five minutes before he has to reign you back in.

You were a miniature scientist yourself, though you claimed to leave all the real thinking to your dad. 

He liked you more and more the longer you two talked, letting himself go off on scientific tangents more than once while you nodded along, and made well educated comments of your own. By the time someone else finally comes to check on the two of you, he’s almost ten billion percent sure he’s a little in love with you. 

Or, at the very least, your brain. Falling in love that quickly was more illogical than falling in love in general, but it would be a complete lie if he said he didn’t want to keep you around for more selfish reasons than to turn you over to their side. 

It didn’t help that you gave him your entire attention, leaning forward with bright eyes glittering with genuine excitement whenever he got started on one of his mini science lectures. It made him feel like Taiju whenever Yuzuriha was around, his heart beating far too hard than should be normal, his body temperature rising. 

“I should go back soon,” Your sighed words have a frown pulling on his lips. 

“Not sure we can let you do that,” He says, dissatisfaction pooling in his chest. He wasn’t ready for you to leave just yet, he had more information he wanted, more things he wanted to talk to you about. 

“Because I might be a spy? That’s understandable,” You say, letting out another soft sigh.

“But my absence has probably already been noticed, and I’d rather not watch my other dad shoot you in the head just because I decided to come out here.” 

“Your other dad?” He has a feeling he already knows what you’re about to say next, based on your wording alone. 

“Mhm, Stanley.” 

Hah, so you had a genius scientist and a military expert as parents? No wonder you were so damn smart. How exhilarating, he couldn’t help but feel at least a little excited about that.

Hello, 🚙anon here. Will be throwing a few ideas in separate asks.

Main cast boys (Ryusui, Senku, Tsukasa, Ukyo, Chrome, someone else?) and an s/o who is protective.

A jealous enemy or a nasty accident. We all know they will defend their s/o, but what will happen, if the reverse would have to occur?

hello 🚙 anon! I’m sorry that I’m slacking with all the requests but I tried to give it my all with this one! Pls enjoy💕

Ryusui, Senku, Tsukasa, Ukyo, and Chrome, with a protective s/o💘

Ryusui:

I would say Ryusui would be flattered to have a protective s/o

There was one day when you guys were building the Perseus and you overheard some people smack talking Ryusui 

“I bet that new guy Ryusui doesn’t care about saving anyone. I’m sure he’s just making us build this thing just so he can have one.”

Your head quickly perks up, eyeing the random npc who said that 

“Excuse me??” You say, “Ryusui would NEVER do something like that”

Now you’re all up in this guys face

“Don’t even think for a second that Ryusui is so selfish that he doesn’t care about anyone at all! He’s the kindest person in the world and don’t you ever forget that again!”

When Ryusui heard about your outburst he quickly finds you and throws himself all over you 

“My sweet y/n! Your words make me so happy I could eat you all up!” He says this as he’s tightly holding you and jokingly biting your cheek and kissing you all over your face 

But he gets serious 

“But you don’t have to worry about people’s words dear. As much as I appreciate you standing up for me I would hate if it got you into serious trouble trying to defend me. Words will always be words sweetheart, and you will always be my love<3”

Ryusui would hate it if you or someone started a fight just over some words said about him 

He couldn’t care less on how the world sees him good for you baby! As long as he’s seen with nothing but love in your eyes screw what everyone else has to say!

But let’s say when you guys get to America and Stanley’s doing what Stanley does best and shooting up a storm at all of you

You see Ryusui about to get hit as you push him to the ground and use your body as a shield 

At first Ryusui is flabbergasted 

He’s so used to you being so calm and collected and a tad bit goofy but now you’re all protective and defensive!

But Ryusui doesn’t sit back for too long because he pushes you back as well

You two probably keep doing this to each other until you both get hurt

It doesn’t really help anyone lol

If you get seriously injured protecting him then he’ll get so hard on himself but do his best to help you back to your normal self 

He might even distance himself from you when you’re all better because he thinks you might get hurt again :(

Senku

I don’t think Senku would notice and or care if you were protective of him or not

When you were hearing some of the villagers smack talking about him because of all the work that he gives them

You of course talk back, saying how Senku’s the reason why the village is so safe and how all these cool inventions are being made so they better shut their mouth or you’re just gonna hafta-

“Y/n! What the hell are you doing?? Those bolts were supposed to be done 10 minutes ago!!!”

Senku just appears out of nowhere to scold you lol 

You try to explain yourself, saying that some guy was insulting him, and bro does not gaf 💀

“Ok???? Who cares??? Pls just get your work done!!!”

You’re kinda hurt thats that was his reaction 

But as you’re walking away…!!!

“But…thanks anyway y/n. Just don’t waste your breath on me.”

You can see his red ears from the corner of your eye and now everything’s all better!

Now as for physically protecting him, it doesn’t happen a lot cause he’s always thinking about how to do things scientifically, but when Stanley shoots at Senku and you push him out of the way only for you to get hurt, he kinda blanks for a second 

But that second doesn’t last long at all because he quickly starts trying to help you, despite being in Stanley’s line of fire

After everything’s all said and done and you’re awake and recovering, he lets you have it

“What were you thinking???!!! That’s was a stupid idea for you to jump in front of a literal gunshot!!! What if you died Y/N???! What if you left me??!!!!”

Yeah he’s kinda mad at you for doing something so bold, but he’s more mad about the fact that despite having a plan, it won’t always work, and the result of that was you getting hurt

He blames himself for not acting fast enough

“I….im sorry Senku… I just didn’t want to see you hurt that’s all…”

That’s all he has to hear to hold you tight and start to cry in your hair

That’s when he says those rare 3 words

“I love you moron…don’t ever scare me like that again…”

Tsukasa

Don’t even try💀

At least don’t try to physically protect him

Like there’s literally no reason and/or way to 

He either one, saves you first

Or two, literally gets hit and is not affected at all

But if someone were stupid enough to smack talk him, you’d be the first one to go defend him

Someone’s still salty that he was busting down statues?

“You don’t know anything about that situation! Were you there when it happened??? Then you can’t say anything!!”

Someone’s jealous that he’s one of the most attractive men in this show?? Besides Ryusui ofc<3

“Don’t be mad Tsukasa’s gorgeous and you’re not! And it’s not his face that’s just gorgeous! It’s his beautiful soul too!”

No one really replies to you like for Ryusui or Senku’s case

No one wants to risk saying the wrong thing 

After all if they say the wrong thing Tsukasa will just destroy them☺️

Ukyo

If anyone has anything bad to say about Ukyo then they’re wrong Ukyo has probably, sadly, heard it 

His ears are able to hear pretty much anything so he’d be able to hear whatever bad things people had to say about him

But! He’s also able to hear you defend him

“Ukyo’s the most important general!” You say to some random hater, “his insight is more than valuable! So don’t ever say anything like that about him again!”

He can’t help but smile to himself and Senku gets weirded out at his sudden change in behavior 

Ukyo won’t really say anything about it, you’ll just be met with a soft kiss or a million I love yous

If you were to physically protect him then I think he might crash out 😶

When you push him out of the way of an attack, he can hear the pain in your voice, and it just breaks him

Immediately tends to you, doesn’t matter if hes still in the line of fire or he has wounds of his own

He scolds you when you wake up, but not as fiercely as Senku 

It’s just a soft, tearful “what were you thinking? You could’ve seriously got hurt… well I mean look at you… please never scare me like that again…”

He’s definitely got more of an eye on you after that 

Chrome:

Chrome has always been called weird for his “sorcery” 

But anyone who calls him that now is gonna get a long lecture from his s/o

“Chrome actually uses nothing but science and is actually helping the kingdom of science out a lot so you should watch the way you talk!!”

He appreciates this more than he lets on

He’ll probably give you a, “it’s not that big of a deal y/n” and walk away but he actually is really happy

If you seen One Piece, you know how chopper will be saying not to praise him but act all giddy anyway?

Yeah that’s Chrome

As for physical protection? He’s actually flabbergasted

Like buddy did not know you were capable of such strength 

But if you were to get seriously hurt then he’d start panicking real fast

Suika’s gonna have to calm him down while Senku or someone starts tending to your wounds but quickly jumps in and tries to help

Gets all teary eyed when you’re better saying things along the lines of “you really scared me” or “don’t do anything so rash next time!”

can't sleep, so here we go for another Dr. Stone hdc request!

Rank the characters (mains?+ Ryusui, the best sailor boi) from top to bottom of how easy it is to make them laugh. From smiling, chuckling to outright wheezing or anything in between.

Feel free to ignore and thank you

hello 🚙 anon! Thank you for your patience! I had a great time writing this so I hope you enjoy as well💕

Laughing headcanons💕

Senku(5)

Gives a good chuckle here and there but doesn’t normally laugh that much

EXCEPT

When you tell a really corny science joke

Dude tries to keep it together but will bust out laughing 

Especially when you say one out of nowhere

“You’re a really good chemist senku.”

“Thanks”

“Probably because you’re always working with SOLUTIONS :D”

His head turns away so fast as he’s trying to hide his smile and all you can hear is little snort coming from him

This of course makes you start to laugh and then that makes him laugh more

He hates his laugh but it’s so cute!

Tsukasa(6)

He gives a smile or a soft huff but doesn’t normally laugh

I honestly can’t think of any situation where he would genuinely laugh unless it’s with Mirai

She’ll be telling him about her day or tell him a really childish joke and he’ll just smile and giggle from her excitement 

Sam goes with pretty much anyone when they’re talking about something 

But Tsukasa will really give it his best laugh for mirai 

Taiju (1):

Does not take that much to get this guy to laugh

You could say something really stupid and he’d bust out laughing 

Always smiling and telling dumb jokes of his own

“Hey Senku why did the chicken cross the road?”

“Why Taiju 😑”

“TO GET TO THE OTHER SIDE!! AHHHHHAJAHAHHABAJSIMSDNKS”

Yeah no surprise there

Yuzuriha(3)

Has the cutest laugh!!!

I think she’ll mainly laugh at funny stories people have told her or if she hears other people laughing 

Of course she’ll giggle at Taiju’s antics as well

She’s always smiling 

Gen(4)

Chuckles at people’s pain 😀

You (or anyone) could be walking and struggling to carry a dozen boxes. Fall on your face and he starts busting out laughing 

Of course the pouty look doesn’t make him laugh any less it might make him laugh more

Eventually he’ll come and help you 

His laugh is super high pitched 

When’s he’s bragging or talking about how dumb someone else is he evilly laughs

Ryusui(2)

Same as Taiju, always laughing

Maybe not at everything though, but definitely for most things

Smiles when you smile 

Laughs when you laugh 

Y know when you’re in class and lock eyes with your best friend and you both start busting out laughing? That’s you and Ryusui

Senku will be having a meeting with you taking notes for the generals when you look at Ryusui and Ryusui looks at you and the both of you just lose it 

Senku is so annoyed that he either tells you both to leave or bans you from taking notes for them anymore anymore

And ofc the both of you will always giggle when you’re falling asleep together 

But sometimes his laugh scares you, especially when you’re so focused on something and all you hear is “HAHAHA Y/N GUESS WHAT I FOUND!!!”

But when he tries to quiet down his laugh it sounds like an evil kitten

Omg hey girlypop, what is your best dr stone headcanon?

hi girlypop bestie! Imma be so honest I couldn’t come up with one on the top of my head so I wrote one for most of the characters. Probably gonna make a part two with the rest idk. I hope this’ll do!💝

Headcanon for most dr stone characters 🎀

Senku: he likes hanging around you the most so he picks up some of your habits (ex: if you like to dance when you work you’ll catch him swaying or dancing a bit too)

Taiju: since Yuzuriha is always making cute things for everyone he tried to make something for her

Yuzuriha: all the suits Senku and all the scientist wear for their meetings are made by her or from her brand

Kohaku: whether she’s dating a man/woman/nonbinary person she’ll insist she does the heavy lifting 

Chrome: searches for the best rocks or stones for your wedding ring to be

Kinro: lied to a security guard breaking a rule so you could meet one of your favorite musicians 

Ginro: ACTUALLY trains with Kohaku because he’s worried he won’t be able to protect you

Gen: refuses to use his mental tricks on you because he doesn’t want to manipulate you

Kaseki: whenever the dr stone couples have kids he makes toys for them

Tsukasa: always kissed you before a fight for good luck 

Magma: stops trying to be the village chief in order to make you fall for him

Nikki: writes down Lilian song lyrics she remembers and gives them to you because they remind her of you

Ukyo: wants a huge family I’m talking like 6 kids

Yo: tries to flirt but it often sounds like insults

Hyoga: if you’re not from Japan he’ll teach you Japanese traditions

Homura: knows all the kingdom of science drama and will tell you it like a bedtime story 

Minami: plans on making a scrapbook of all the pictures of you and her together

Ryusui: loves sports cars so before the petrification you and him would go speeding around Japan 

Francois: teaches you how to cook, clean, etc. in case they’re not there to help you 

Soyuz: as soon as he decided to become chief of treasure island he proposed saying he needed a priestess to be by this side

Hi! Since it's almost Christmas, could you write headcanons of how Ryusui, Senku, Stanley and Tsukasa would spend Christmas with their s/o (fem or gn reader) and their family (their children or the reader's family).

Bye and thank you for the 2 last requests !

This is so late I’m so sorry I’ve been very busy with finals! I tried to include reader’s family as best as I could do I hope you enjoy. If it’s not what you were looking for then you can always ask again. Thank you for your patience 💕💕

Ryusui, Senku, Stanley, and Tsukasa’s Christmas with their s/o🎄❤️

Ryusui:

he probably thinks Christmas is all about the presents

So on Christmas Day there will probably be trucks full of gifts, all for you! Please there’s no reason for him to have that much money

BUT-

You have to teach him that there are other things to enjoy other than just a pile of presents

The first time he watched a Christmas movie with you and your is DEFINITELY a core memory for him

Your matching pajamas, the way you snuggle into him and sharing the hot chocolate you prepared, the echo of your laugh filling his ears, and at the very end how you kiss him and thank him for spending Christmas with you

He completely melts

He’s so in love, he just wants moments with you like this all the time.

The only Christmases he remembers are just his dad and uncle basically throwing him into a room full of gifts and leaving for a Christmas vacation somewhere 

So having genuine time with you and your family and sharing your love with each other makes him so happy he might even tear up a bit my poor baby😭

Now it’s tradition for the both of  you to do something like that every year❤️

Senku:

He spends it in the lab 💀 

You have to drag him out of there

You have to BEG him to back cookies with you

“Come on Senku! Please! It’s like chemistry, we have to mix a bunch of stuff together!”

After 30 minutes of begging he finally caved

Of course Senku knows all the perfect measurements to everything so the only thing you really had to do was mix the ingredients together

Your mom and dad did keep him busy with random conversations though

In the living room you can hear them whispering about something but you don’t know what

The cookies tasted great!

After you both said goodbye to your family and your mom hugged the crap outta him you both headed back home.

“You don’t have to stay, Senku. I’m ok with you going back to the lab. I just wanted to spend time with you…”

And with that he leaves-

You sit in the living room, bummed out that Senku left again

THEN

Senku comes back with a small box and a huge blush

“Here…”

You were super shocked when you opened it up 

“Senku…this ring, it’s platinum right? You didn’t really…”

“It’s what the old man would’ve wanted. And…it’s what I want too…” 

Was he really..?

You started to cry

Senku didn’t know what to do 

You just held each other and told each other how much you loved one another, excited about the future with each other 

Stanley:

Stanley was on a mission during Christmas

So, Xeno invited you and your family to a Christmas party he and his colleagues were hosting

You really didn’t want to go, especially since you wouldn’t know anyone and Stanley wasn’t with you

But Xeno was still your friend so you decided to show up for him

You and your relatives stand there awkwardly in one of the door frames as Xeno and his colleagues talk about whatever project they were working on

You dad and mom go find some of the snacks and your siblings (if you have any) go causing trouble somewhere

There you were by yourself in the corner

“You look lonely over here under the mistletoe Miss. May i accompany you?”

You knew that voice 

You look up to see your boyfriend 

“Stanley!”

You practically jump on him, wrapping your small arms around his much bigger body

He pets your hair, then lifts your  chin

“We’re still under the mistletoe.” 

You smile at his cheesy gesture something he doesn’t normally do 

You both lean closer together and kiss, desperately clinging to each other like you’re both afraid to let go

“Oh! Is this your boyfriend (y/n)?” 

Your lips immediately leave Stanley’s as you see your whole family just staring at you and Stanley under the mistletoe 

You face turns red instantly causing Stanley to laugh

He sticks his hand out for your family

“My name is Stanley Snyder. It’s an honor to finally meet you all.”

Tsukasa 

You had a gingerbread house competition 

Your mother was the judge

You and Mirai were a team 

Tsukasa and your dad were the other

Tsukasa was struggling making the designs in the roof

Your dad couldn’t get the gum drops to stick

But you and Mirai had a great time with the gumdrops and candy canes, sprinkling them everywhere!

After your major victory Mirai wanted to play with her dolls 

So you and Tsukasa sat on the couch, snuggling up next to each other while your mom kept Mirai entertained 

“Do you want kids?” 

Your head pops up with the sudden question

He locks his eyes with yours, patiently waiting for your response 

A soft smile grows on your face 

“Of course I do!” 

This leaves Tsukasa heart-struck

He kisses your forehead, his favorite way of showing his love for you

You can hear Mirai’s ewws, making both of you laugh

“No sex before marriage!” Your dad yells from the kitchen 

“Dad!” 

Dr. Stone Fanfic Self Aware AU

Title: The Stone World Paradox

Senku Ishigami x Reader

Summary: Senku Ishigami has been trapped in an endless time loop, reliving the same events from the moment civilization was petrified to the revival of Byakuya. No matter how much he deviates, the world resets—until she appears. Y/N L/N, an anomaly in his predetermined reality, disrupts the cycle just by existing. As Senku struggles to understand why the loop has finally broken, he finds himself facing an uncertain future for the first time. But maybe, just maybe, uncertainty isn’t so bad—especially with her by his side.

For the nth time, the world began anew.

Senku Ishigami sighed as Taiju Oki burst into the science lab, yelling at the top of his lungs.

"Senku! I'm finally gonna confess to Yuzuriha!"

The scientist barely reacted. He had heard these exact words too many times to count, seen the same determined look on his best friend's face, and experienced the same sequence of events play out again and again.

The stone world would begin. The petrification would happen. He would wake up alone. He would count the days. He would revive Taiju. He would revive Yuzuriha. He would clash with Tsukasa. He would build the Kingdom of Science. He would save Ruri.

Then, after what felt like an eternity, he will move on to make a time machine and he would find Byakuya’s stone body with the help of why-man and everyone.

And the cycle would begin all over again.

At first, Senku hadn't noticed the loops. It was subtle—fragmented dreams of things that had already happened, but he brushed them off as déjà vu. Then, after dozens, maybe hundreds of cycles, he realized something was deeply wrong.

The world was off.

People repeated their lines perfectly, as if reading from a script. Background characters, if not directly involved in the current scene, felt lifeless—as if they were NPCs in a video game, waiting for the player to interact with them.

Everything felt coded. Artificial.

And no matter how much he tried to deviate from his expected actions, the world always corrected itself, forcing events back on track.

Was this even reality? Or was he trapped in some kind of cosmic experiment?

Senku had long since stopped questioning it. If he couldn't change the loop, then he would just have to live with it. Its the most logical thing to do after all, its not like he has the power to go against that thing that is doing this.

Then something different happened this time.

It was the day Gen Asagiri was supposed to make his first appearance—the so-called mentalist arriving at the Kingdom of Science to assess whether Senku was truly alive, task to him by Tsukasa.

Senku already knew what was supposed to happen. He would be distributing ramen to the villagers, Gen would show up and dramatically demand Cola, and Senku would eventually win him over to his side.

But this time… Gen wasn't alone.

Sitting beside him was a girl Senku had never seen before., holding a bowl of Ramen as well.

She didn't exist in any of the previous loops.

His sharp red eyes immediately locked onto her, studying her as she approached with casual curiosity.

Gen smirked. "Oh my~ this Ramen will surely be more delicious with... what do you think? Cola is it~"

The girl—Y/N L/N—gave a nervous smile, shifting slightly behind Gen as if unsure of how to act in front of him.

And for the first time in countless cycles, Senku felt a shift in the world.

It was subtle but undeniable. The air seemed crisper, the colors more vivid. The villagers, who normally followed their pre-determined scripts, reacted to Y/N with genuine, unscripted curiosity.

She was an anomaly.

And anomalies were something Senku never ignored.

_______

Y/N had no idea how she got here.

One moment, she was living her normal life, obsessed with Dr. Stone, especially Senku Ishigami.

The next moment? Truck-kun did his thing, and she woke up in the Stone World.

At first, she thought she was dreaming.

Then she realized she was petrified.

Somehow, she had arrived in this world already turned to stone, only to be unpetrified by none other than Tsukasa Shishio, Gen Asagiri, and Ukyo Saionji.

It gave her credibility. She wasn’t just some random girl appearing out of nowhere— at least she had been part of the world’s history, past encased in stone like everyone else, before the petrification happened. Good thing its already over more than 3,700 years, no one will suspect that she in fact did not beling in this world... all but one that is.

When she first saw Tsukasa, she nearly had a heart attack.

When she saw Gen, she nearly screamed.

And when they asked for her name, she realized she had no idea what the hell she was supposed to do.

But if there was one thing she knew, it was that she wanted to see him.

Senku Ishigami.

As a fangirl, that is a must!!!

The moment Gen mentioned that he was being sent to check if Senku was alive, she jumped at the opportunity.

"Gen? Can i come with you? Please?"

"Oh? and what might be the reason our little angel wants to come see the village~"

"I'm just curious okay? to see a real life primitive village that is!!"

Now, here she was, standing in front of him, in the middle of the Kingdom of Science.

And the way he was looking at her made her skin tingle.

"You're looking at my partners in crim like sh was some type anomaly Senku Chan~~ "

"That's because she is"

"Eh?"

Senku didn’t believe in miracles. After all he was in this loop for so very long and nothing changes no matter what, so he really has no hope for that.

But Y/N?

She was something that defied all logic. she defied even this world's constant

The moment he saw her, his mind was already racing. Where did she come from? Is she here in the previois loop? If so how did she escape the loop? What made her different from everything else in this fake world?

For the first time in countless cycles, he felt… excited.

Interested.

It wasn’t just because she was an anomaly—it was because she made the world feel real again.

As the days passed, he watched how the people around her, around him changed.

Kohaku, Chrome, Suika, Kaseki even Gen—everyone acted more alive when they were around her. The scripted lines, the unnatural repetition, the lifelessness—all of it started to fade the moment she interacted with them.

She was disrupting the world’s pre-determined flow.

If Y/N could change things, then maybe—just maybe—he could finally break free from this loop.

_______

Senku wasn’t one for emotions.

Love, romance—all of that took a backseat to science.

But Y/N was different.

Y/N huffed, slamming her hands on the table. "Senku, you can’t just ignore the taste factor! If we're making sulfa drugs, we should at least try to make them less disgusting!"

Senku scoffed, rolling his eyes as he continued grinding ingredients into fine powder. "Oh sure, let’s waste time making life-saving medicine taste like candy. Brilliant idea, Einstein."

"Hey! I’m just saying, if the patient can’t even swallow it without gagging, what’s the point?!" Y/N argued, pointing an accusatory finger at him.

Senku smirked, adjusting his goggles. "The point is that it’ll save their life, Y/N. Newsflash—sulfa drugs aren’t a gourmet meal. If they don’t like the taste, they can suck it up."

Y/N groaned. "But you KNOW compliance is a thing! If it tastes like literal death, people might refuse to take it!"

"And if we waste time making it taste good, they might die before they even get the chance," Senku shot back, flicking her forehead lightly. "Science first, comfort second. That’s how it works."

Y/N rubbed her forehead, glaring. "You are so stubborn. Would it kill you to consider patient experience?"

"No, but it might kill them if we delay the process." Senku smirked. "Unless you’d rather go back in time and tell Alexander Fleming to sweeten up penicillin?"

Y/N crossed her arms. "Ugh! I hate it when you use historical scientists against me."

"I know. That’s why I do it." He grinned smugly.

Y/N sighed in defeat, then muttered, "Fine. But I’m still going to find a way to make them taste less horrible after we make the first batch."

Senku chuckled. "Knock yourself out, taste-tester."

The more time he spent with her, the more he realized how much she fascinated him. Her knowledge, her humor, the way she challenged him in discussions—she was brilliant. Annoying but brilliant nonetheless

She wasn’t just an anomaly in the world.

She was an anomaly in his heart. Kukuku Yeah he really is staeting to sound illogical in this one

The realization came slowly. At first, he brushed it off as mere interest. Then he rationalized it as curiosity. But the moment he caught himself staring at her for too long, the moment he found himself wanting to be near her, he knew—

He had fallen for her. Surprise. Surprise

And if there was anything he hated, it was unsolved mysteries.

______

It took time, but together, they changed everything.

The Kingdom of Science thrived. The war with Tsukasa ended. They set sail. They conquered the world’s challenges. They face that creep Ibara. Have a science showdown with Dr. Xeno. Almost got brutally killed by Stanley. The world being petrified for the second time. Then facing Why-man head on.

And finally—

They found Byakuya’s stone body.

Senku stood there, staring at his father’s petrified form, and he knew.

The cycle was about to reset.

No matter what he had done, no matter how much he changed—the world would force everything back to the beginning.

...or at least that's what he thought...

.

.

.

The moment stretched on longer than it should have. The cold, lifeless form of Byakuya Ishigami stood before them, his stone features frozen in time. The weight of the moment should have been clear—reviving the last of their fallen, the final piece of their journey.

But Senku wasn’t moving.

Kohaku tilted her head, confused. "Senku? Why are you just standing there? This is your father, right?"

Ryusui folded his arms, watching Senku with a raised brow. "For once, I have to agree. You should be pouring revival fluid on him right now, yet here you are, gawking like you’ve never seen a petrified person before."

Y/N, standing just a bit closer, nudged Senku with her elbow. "Oi, Senku, this isn’t like you. What’s with the hesitation? Don’t tell me you’re getting sentimental on us?" she teased, smirking.

Senku blinked, snapping out of his daze. "Tch. Sentimental? As if." He quickly turned his usual cocky grin on her, masking the storm raging in his mind.

Because this wasn’t right.

The loop was supposed to restart now. This moment—the very second they found Byakuya's statue—had always been the reset point. He should’ve been bracing himself to wake up back in his high school lab, hearing Taiju’s earth-shattering declaration that he was going to confess to Yuzuriha.

But nothing was happening.

Time was still moving forward.

Y/N sighed, shaking her head. "You’re acting weirder than usual, scientist. Are you gonna revive him or what?" She grinned, placing a hand on her hip. "Or are you waiting for a dramatic drumroll?"

Senku exhaled slowly through his nose. She was watching him. They all were.

His mind raced for an explanation—something logical to cling to. The loop should have reset, so why was everything continuing? Why was he still here?

Then his eyes flickered back to Y/N.

The anomaly. The one thing that never existed in any previous cycle.

Senku’s lips curled into a smirk as he pulled out the revival fluid. "Heh. If you want a drumroll, you’re out of luck. Science waits for no one."

With practiced precision, he poured the glowing liquid over his father’s petrified form, watching as the cracks formed, golden light illuminating Byakuya’s frozen features.

_____

Y/N, standing to the side, watched the heartwarming reunion unfold. A part of her felt a pang of longing—because, for the first time, she truly didn’t know what would happen next. This was supposed to be the final chapter, the last scene. But now?

Everything was unwritten.

As the group made their way back to the perseus, Y/N nudged Senku playfully. "You’re staring into space again, Ishigami. Are you secretly a softie now that your dad’s back?"

Senku rolled his eyes. "Tch. As if. I was just running calculations in my head."

"Sure you were," she teased, smirking.

Senku clicked his tongue. "If you had even an ounce of scientific prowess, you’d understand that thinking ahead is crucial."

"Oh, please. I understand science just fine. But unlike you, I also understand emotions," Y/N shot back. "Which, judging by that awkward hug, you still suck at."

"Hugging has nothing to do with science, and you know it."

"It has everything to do with being a functional human being."

"Functionality is about efficiency, not sentimentality."

"Oh my god, Senku, you are impossible!"

They continued bickering even as they returned to the ship, their voices echoing in the small quarters as the celebration back on Ishigami Village began.

—---

That night, in the quiet of his quarters, Senku lay staring at the ceiling. His arms were folded behind his head, and his mind raced, calculating, analyzing.

By all logic, the loop should have reset the moment they found Byakuya’s statue. Instead, time moved forward.

His mind kept coming back to one thing.

Or rather… one person.

Y/N.

She was an anomaly. She had disrupted the pattern. Could she be the reason the loop had stopped?

He sighed, closing his eyes.

If I wake up tomorrow… where will I be?

The thought unsettled him more than he cared to admit. For so long, he had accepted the endless cycle, the unbreakable script of this world. Now, for the first time, he felt the uncertainty of tomorrow.

And, to his own surprise, he hoped to wake up to a new day. Not another loop.

His last thought before sleep took him was of Y/N, her voice ringing in his ears.

"Oh my god, Senku, you are impossible!"

A small smirk tugged at his lips.

Heh. Yeah, well… So is she.

And then, for the first time in countless cycles, Senku Ishigami let himself sleep, truly wondering what came next.

.

.

.

.

.

.

.

.

.

.

.

.

"Oi Ishigami Senku, you better wake you ass up. Your dad’s been resquesting for you. He wants to spend some time with his genius son."

His eyes snapped open. Instead of the white ceiling of his old science lab, he was met with Y/N’s face, her expression hovering somewhere between amusement and curiosity. The soft morning light filtered through the ship window, confirming what he already suspected.

The loop hadn’t reset.

Senku blinked, quickly masking his initial shock with a smirk. "Tch. That old man is way too sentimental."

Y/N crossed her arms, raising an eyebrow. "Oh, and you’re not? I distinctly remember a certain scientist hesitating for a solid five minutes before reviving him."

"That’s called making sure the experiment goes smoothly, not sentimentality."

"Right. Just like how you ‘logically calculated’ that awkward hug instead of freezing like a malfunctioning robot."

"Hugging isn’t a science. And for the record, my calculations were flawless, as always."

"Mhm. Keep telling yourself that, You leek Science Boy."

Senku let out an exasperated sigh, sitting up and stretching. "You’re really getting too comfortable calling me that, huh?"

Y/N grinned. "What can I say? It’s fun watching you pretend you’re not a total softie."

"You do realize that by scientific standards, you’re objectively incorrect."

"And you do realize that by human standards, you’re completely in denial?"

"Tch. You’re seriously exhausting."

"And yet, you’d be lost without me."

Senku gave her a sidelong glance, but instead of arguing, he just huffed out a quiet chuckle. "Yeah, yeah. Whatever you say."

For the first time in a long, long while, he wasn’t trapped in an endless cycle. No loops, no resets. Just… the future.

And, somehow, he didn’t mind that future that includes her by his side.

—END.

Till Death Do Us Part

A Dr. Stone Zombie Apocalypse AU

Pairing: Senku Ishigami x Reader

Genre: Angst | Tragedy | Bittersweet Romance

Playlist: "Die With a Smile" – Lady Gaga & Bruno Mars

The world ended in a single breath.

A virus swept through civilization like wildfire, turning friends, family, and strangers alike into mindless, rotting creatures—walkers that hungered for flesh. It was a fate worse than death, a nightmare that never ended.

You were only fourteen when the virus struck.

The day the world crumbled, you stood beside your best friends—Senku, Taiju, and Yuzuriha—watching helplessly as everything fell apart. You remembered the screams, the chaos, the way society shattered like fragile glass.

You remembered how Byakuya Ishigami, Senku's father, the one who guided you to safety, succumbed to the infection. You remembered your own parents, their voices, their warmth—both ripped away by the disease.

By some cruel twist of fate, you and your friends survived. Not because you were lucky, but because of Senku.

It was his father's influence that gave you all a place to the base—a place fortified enough to keep the walkers out. It was Senku's relentless genius that gave you a purpose: to create a vaccine.

For years, he worked hard. he scavenged, researched, experimented.

Senku never stopped.

Even when you begged him to rest, even when he burned himself out, he refused. Because in Senku's mind, science was humanity’s last hope. And you—his best friend, his partner, the only one who could keep up with his brilliance—you stood by him through it all.

Until everything went to hell.

The vaccine was nearly complete. It lacked only one crucial material, a component that didn’t exist within the safety of the base.

So, you all left—a team of scientists and soldiers venturing into the ruins of the old world to retrieve it.

And one by one, you lost them.

Taiju—your brother in all but blood—was ripped apart protecting you. Yuzuriha—sweet, kind, full of hope—was devoured before your eyes.

And now, you and Senku were all that remained.

Blood stained his white coat as he held onto the finished vaccine formula, his breath ragged, his hands trembling.

You knew something was wrong.

You saw the way he gripped his left forearm, how his fingers trembled over a deep, festering bite wound.

No.

"Senku... tell me you didn’t—"

His ruby red eyes softened. The one you never seems to get tired of looking at. A small, tired smile played on his lips.

"Sorry, Y/N." His voice was hoarse. "Looks like I lost to the numbers game this time."

Your entire world shattered.

This wasn’t happening. This wasn’t real.

"Senku, no. You—You’re a scientist! You can—!" Your voice broke, hands clutching his arm as if you could stop the virus from spreading. "You can fix this, right? Tell me you can fix this!"

He exhaled slowly. "You know I can’t."

Tears blurred your vision. You shook your head violently, refusing to accept this.

"I won’t let you die," you choked out. "I won't let you turn into one of them."

Senku took your hand—his fingers were cold, weaker than ever before.

"Then you have to be the one to end it," he murmured.

Your breath hitched.

"Y/N, listen to me." His voice was steady, even as his body trembled. "This formula—this is it. This will save them. You have to take it back to the base."

He reached for your gun, pressing it into your shaking hands.

"And before I turn," he continued, "you need to—"

"NO!" Your scream echoed through the abandoned city.

You backed away, eyes wide with horror, shaking your head over and over.

You couldn’t do it.

You wouldn’t do it.

"You idiot," you whispered, voice breaking. "You think I could ever shoot you? You think I’d ever be able to pull the trigger?"

Senku exhaled a soft, bitter chuckle. "I had a feeling you'd say that."

He didn’t protest when you grabbed rope from your pack and tied him up, hands and feet restrained, his mouth gagged to keep him from biting.

Because if you couldn’t save him, if you couldn’t stop the inevitable—

You could at least keep him with you.

With the vaccine in your hands and Senku’s undead form tied to a leash, you returned to the base alone.

You can remeber it, when you were making the vaccine itself, how the light in Senku's eyes slowly dimmed and how he gave up to the virus, you can't take it, damn, you can't let him go.

The guards saw the state you were in—bloodied, hollow-eyed, barely able to stand—and rushed to meet you.

"Y/N—where’s the rest of the team?"

You didn’t answer.

You shoved the vaccine into their hands, voice hoarse.

"Take this. Give it to the higher-ups."

They hesitated. "Y/N, come inside please—"

"No."

Your grip tightened on the rope holding Senku. You turned away, ignoring their calls.

Your journey wasn’t over yet.

.

.

.

.

You walked for miles, dragging Senku’s reanimated body behind you.

And when the sun began to set, you finally reached that place.

The very spot where, years ago, Senku had successfully launched a that rocket into space, sending four tiny dolls—you, him, Taiju, and Yuzuriha—beyond the earth.

You remember being with him and Taiju while he asks for some advice, going as far as to send spam messages all over the world. You remeber helping him with his english grammars to properly message Dr. X, a NASA scientist who became Senku's mentor.

Your breath hitched.

You untied Senku’s restraints, leaving only the gag in place.

Slowly, hesitantly, you pulled him into a tight embrace, his decayed body stiff against yours.

Your fingers trembled as you ran them through his previoulsy white with green tips hair that seriously looks like a leek, now an ash-white color so dull and dirty you can't even see the green anymore, pressing your forehead against his.

Tears streamed down your face.

"You're probably scolding me right now, aren’t you?" you whispered.

Senku’s lifeless, ruby red eyes stared back at you.

You let out a broken laugh. "Calling me illogical, saying this is stupid, that I'm a total idiot—"

Your voice cracked.

"But Senku... you were always the logical one," you whispered. "So it’s my job to be the illogical one."

Your fingers brushed against your gun.

The gun you never used.

A memory surfaced—a flashback, a quiet promise you had made years ago.

"If you die, Senku... I’ll follow."

"Tch. That’s dumb, Y/N. You should keep living."

"There's no way I can do that... no... I know for a fact that I can't... there's no point in it"

"Y/N—"

"Till death do us part, Senku."

You reached for the gag, voice trembling.

"I love you," you whispered. "And if I have to become a monster to be with you—"

You pulled the gag free.

"Then so be it."

His teeth sank into your flesh.

You didn’t scream.

You didn’t fight.

You simply held him tighter, letting the infection take you, letting the world fade into darkness.

Because in the end—

You had promised.

" Till death do us part. I love You Senku Ishigami "

" Thats seriously 10 billion percent illogical... "

" Just say it back you leek... "

"... i love you too, (L/n) (Y/n) ....

Till death do us part".

~END

DR. STONE X GHOSTBUSTERS CROSSOVER

Title: Paranormal Science

Ishigami Senku x Reader

Summary: Reader, the granddaughter of Egon Spengler, teams up with Senku, Taiju, and Yuzuriha to revive the Ghostbusters, blending science and the supernatural to capture escaped spirits. Despite Senku’s skepticism, he helps develop advanced ghost-hunting tech. Just as they begin mastering their roles, the world is petrified, putting their mission on hold until Senku awakens to rebuild civilization.

.

.

.

The first time Senku Ishigami met her, it was at a university science exhibition. He had gone to showcase a prototype for a new energy-efficient chemical reaction model, while she was there demonstrating a high-powered containment unit for capturing unstable particles—technology based on her grandfather’s research, though she never outright said it was for ghosts.

Senku had been intrigued at first, analyzing her work with genuine curiosity, until he saw the blueprints of a proton pack tucked into her folder.

“Wait a second,” Senku said, snatching up the design paper with a raised eyebrow. “This looks suspiciously like those Ghostbusters from thr 90s schematic. You’re telling me you’re working on paranormal research?”

(Y/N) grinned, tilting her head. “Not just research. Practical application.”

Senku scoffed, crossing his arms. “Ghosts don’t exist. Everything has a scientific explanation.”

(Y/N) arched a brow. “You sure about that, scientist boy?”

The debate had gone on for over an hour, drawing in a small crowd of amused onlookers. Taiju and Yuzuriha had shown up halfway through, watching in equal parts awe and exasperation as the two geniuses launched into a verbal sparring match about the nature of the supernatural.

“The human brain is predisposed to hallucinations under certain conditions,” Senku argued. “What people call ‘ghost sightings’ can be explained by electromagnetic fields interfering with brain activity. Simple as that.”

(Y/N) smirked. “Then explain why your electromagnetic interference theory doesn’t account for full-body apparitions, objects moving independently, or recorded thermal fluctuations.”

“Tch. Misinterpretations and coincidences. There’s no empirical proof of spectral entities.”

(Y/N) leaned closer, her eyes glinting with mischief. “Then you won’t mind visiting a haunted site with me to test that theory?”

Senku hesitated, and that moment of doubt made her grin even wider.

That was the beginning of their strange friendship. They respected each other’s intelligence, even if their views clashed. For months after their first meeting, they continued their rivalry, testing theories, challenging each other’s perspectives, and eventually working together when an unexpected event forced them to.

Everything changed when the Entity escaped.

It was a powerful ghost—one of the most dangerous spirits Egon Spengler and his team had ever captured. Decades ago, the Ghostbusters had sealed it away in a reinforced containment unit, hidden from the world. But time had weakened the barriers, and the Entity had broken free, bent on finishing what it started—destroying the world.

As Egon’s only descendant, it was now (Y/N)’s responsibility to stop it, permanently.

Unfortunately, Senku, Taiju, and Yuzuriha accidentally got involved. One moment, they were in the lab, making a machine that can turn plastic bottle caps into a usable petroleum, senku was currently working on a mew project(he can't just be a ghostbuster forever, he wants to go to the moon after all) the next they were running for their lives from a rampaging spectral nightmare.

“Okay, I’ll admit—this is terrifying!!” Taiju panted, dodging a flying chair.

“SENKU, Can you do something about this?!” Yuzuriha shrieked as a spectral claw swiped inches from her face.

“…Tch. Fine. I think I can” Senku gritted his teeth. “Ghosts aren’t supposed to be real, but this thing is obviously something.”

He had no choice but to throw his logic out the window and help (Y/N) trap the Entity before it could cause more damage. Together, they reassembled the old Ghostbusters’ equipment, upgraded it, and became an unlikely team. Senku, against his better judgment, became the team’s chief scientist, helping (Y/N) develop even more advanced ghost-catching technology. Taiju, with his sheer strength, handled the heavy lifting, and Yuzuriha provided agility and strategy.

Thus, the New Ghostbusters were born.

It was chaos. It was thrilling. And, much to Senku’s dismay, it was real.

For months, they worked together, tracking down supernatural anomalies, recapturing rogue spirits, and sealing away the Entity’s power.

Their first real ghost capture as a team didn’t go as smoothly as they had hoped.

(Y/N) had managed to track down a rogue spirit haunting an abandoned warehouse, and they knew they needed transportation. It wasn’t hard to find it—the old Ecto-1 was still hidden away, gathering dust in an old storage unit that (Y/N)’s family owned.

“Are we really doing this?” Taiju asked, looking between the rusted car and the gleam in (Y/N)’s eyes.

“Of course we are,” Senku said, already prying open the hood. “But first, we need to make sure this thing actually runs.”

Hours of fixing later, they had the car up and running. But there was just one problem.

“We don’t have a license,” Yuzuriha pointed out.

“No problem,” Senku smirked. “I already hacked into the system and forged us IDs. Yuzuriha, congratulations—you’re officially eighteen with a valid driver’s license.”

“…Senku, that’s illegal.”

“Tch. I've been doung that since I'm what? less than 7 years old?” Senku said with snake like tongue. "There's no illegal in science as long as we move forward!!"

Decked out in the original Ghostbusters uniforms (refitted to their sizes), they hit the road, siren blaring. The thrill of driving an iconic car, breaking multiple traffic laws, and going after a ghost made their adrenaline spike.

Once inside the haunted warehouse, they activated their proton packs. The ghost, a poltergeist with a nasty attitude, shrieked and threw debris at them.

“On my mark!” (Y/N) shouted, dodging a flying crate. “Three, two—NOW!”

Senku and (Y/N) fired their proton streams, locking the ghost in place while Taiju leaped in, tossing the ghost trap beneath it.

“Hit it!” Yuzuriha stomped on the pedal, and the trap sucked the ghost in, snapping shut with a satisfying click.

Silence. Then, laughter. or in rhis case, Senku slumpung out of exhaustion, I don't think he's build for this tyoe of work, he's a scrawny guy, a stick... literally.

“That was awesome!” Taiju beamed.

“No Taiju kun, that was dangerous,” Yuzuriha huffed. “And highly illegal might I add”

(Y/n) smirked. “Heh. Welcome to fhe world of supernatural I guess, as a scientist this gadgets and traps is really awesome”

Meanwhile, Senku narrow his eyes at (Y/) "though i doubt this is what a logical scientist should do".

"Oh just drop it already and accept this new part of your reality, you leek".

As they drove off into the night, siren wailing, they had no idea that their adventures were only beginning.

Through it all, Senku found himself drawn to (Y/N) in ways he never expected. She was his opposite yet his equal, a scientist at heart but a believer in the unknown. They argued constantly, debated endlessly, and somewhere along the way… fell for each other.

Their relationship was slow, a natural progression of intellectual admiration turning into something more. Late-night research sessions turned into long conversations about science and the supernatural, which turned into playful banter and stolen glances. Senku, ever the logical mind, found himself enjoying her company more than he anticipated. (Y/N) found comfort in someone who challenged her but never dismissed her entirely.

...well that is until a bright green light decided to swallow the entirety of earth, turning every human to stone.

~End