#2/2 i.senku series

[thelonestarinthesky]

⁷. ᵍᵒᵒᵈᵇʸᵉ ᶠᵒʳ ⁿᵒʷ

⁺₊✦₊　

pairing: senku x f!reader

chapter 7 of 2/2- i.senku

cw: implied nudity and sex (no smut yet sadly)

a/n: next chapter will be the last of Senku's memories of reader. like I said on ao3, reader reminds me of the dead wife haunting the narrative, always brought up but not present.

masterlist / playlist

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Senku woke up from the best sleep he'd ever had. Was he maybe exaggerating? Probably.

His hand was softly holding onto something soft and warm. He couldn't help but smile from just remembering what happened last night.

Wanting to keep sleeping with the girl in his arms, burying his face back in her hair. He let out a groan when [Name] moved slightly to turn and look up at him, forcing his hand to hold onto her hip instead.

He opens one eye to look down at her, only to blush slightly and close his eyes again.

"....stop looking at me with those eyes." He says muffled, clearly flustered by the way she stared up at him.

"You dazzle me, what can I say?"

She giggles at this, burying her face in his chest. "...now you're embarrassed, but the way you were last night was totally different." [Name] says teasingly. "Was it really Senku doing all those things, or was it a mimic?"

She lets out a squeal as she feels his lips bite down on her shoulder, his fingers tickling her side as she tries to get away from him.

"...you think if Byakuya was here, would he storm into your room without knocking and find us like this?" [Name] asked, sitting up to stretch only to curl back into his arms.

Senku hums quietly. "10 billion percent he would scold us for not using protection." He says, shrugging his shoulders nonchalantly.

"Scold you, maybe; he has a soft spot for me." He rolls his eyes when she says this while grinning at him happily, poking his cheek playfully.

"Someone's too proud to admit he's jealous." The girl lets out a laugh as he pushes her hand away before setting down again.

Sighing peacefully, she closes her eyes. "I was thinking of finishing my education at your school." She confesses. "It would be nice if I experienced high school life before becoming an adult."

Senku thinks that ever since she came back and stayed over 3 years ago, she didn't return to school and instead went back to homeschooling due to her illness. "You are taking your medicine, right? I don't want you to go back to the hospital for serious treatment again." He says, scolding her as he pinches her cheek, making her whine in protest.

"You need to get better," he says quietly.

After putting on some clothes, Senku pulled [Name] to his science room, hands intertwined tightly. The room was still filled with many science things, but the one thing that never changed or moved was the telescope in front of the window and the little robot Senku sitting on the frame of the window.

[Name] walked up to it, "You still have this?" She asked, poking it. She couldn't help but wonder why he even kept a clearly poor-built robot she did when she was a kid.

"Obviously, it was the first gift you gave me besides your allowance card." He says plainly as he walks over to a box on his desk.

[Name] was too busy examining the old robot, looking it over as an idea came to her, smiling at it.

Senku stood behind her, holding something in his hands. Clearing his throat, she turns around only to be met with a bouquet of blue roses; she's in awe.

"It's for you." He says, flustered, a blush on his cheeks as [Name] happily accepts the flowers.

"They're so beautiful." She says bashfully, looking down at them, smiling.

His heart skips a beat at this, seeing his girl look so happy to receive anything he gives her.

"Well, of course, it's nothing special. Just roses soaking up blue food coloring dye." He says, talking [Name]'s ear off. The girl just smiled even more at this, watching as he spoke about the science behind it.

Normally, Senku, when he's nervous, would talk and talk, which she found cute. He wasn't a very expressive person, but he could separate his feelings and logic so she could read him easily.

With Senku being too shy, his gaze averted to the side, she took this opportunity. Gently settling down the bouquet of the blue roses on his desk, she quietly goes back over to him and hugs him tightly.

He relaxes as soon as she does so, her face buried in his chest. "Thank you." She says as his arms wrap around her waist.

Leaning up, she gives him a kiss before pulling back as soon as he tries to deepen it. "I wonder how you're not sick of me yet." [Name] teases, giving him a grin before letting a muffled squeal as Senku cuts her off, smashing his lips against hers.

After making out for minutes, he pulls back, panting heavily, grinning down at her. "You can't just tease me like that when you're only wearing my shirt."

[Name] flushes red at this and feels one of his hands sliding down to cup her ass as the kiss deepens once more.

Letting a surprised gasp as she feels Senku gently lead her to the floor, blushing furiously. "Seriously?! In here?" She says, embarrassed. He gives her a wicked grin, making her heart beat rapidly.

"Yeah, in here." He says, leaning in once more.

࿐⸻༺ ෆ ༻⸻࿐

[Name] sat beside him, Yuzuriha, and Taiju in front of them. The four were in a cafe; the girls were busy eating their sweets while Taiju was debating on which one to eat, and Senku was scrolling on his phone.

[Name] was set to graduate in a couple of months, plus their anniversary was coming up soon, and he never failed to at least gift her something he'd make with his hands and science.

Like him, she keeps all the gifts he makes for her in her closet, specifically for his gifts. Rich people...

Scrolling on his phone, he looks up upon noticing [Name], holding out a fork with a piece of cake for him. Leaning in and eating it, she smiles before continuing to talk to Yuzuriha, who clearly wants to do the same with Taiju but is too shy to do so.

His brows furrow up in seeing an article, getting [Name]'s attention; she leans on his shoulder to see what he's looking at.

Her expression changes slightly, and he notices. "I'll tell you in private." She mouths to him before kissing his cheek to make sure Yuzuriha and Taiju don't notice her mood change completely.

After studying and chatting, the couple waved at their friends as they went their separate ways.

"Rumors are going around about my position as the heir. I'm sure you remember back at my 15th birthday party, the son of the Nanami Conglomerate." She says sternly, despite being carefree and like any teenager her age. She still had her serious moments when involving her connection to the business world.

"He proposed marriage between us once I turned 18. Saying it would benefit mine and his family, which is true to some degree." Senku sees that distant look in her eyes again and takes her hand, intertwining their fingers softly.

"But that article, it said the [L/n] company is being involved in a highly classified project," she held up her hand that he wasn't holding.

"... someone must have leaked it..."

"I've seen it once when my father took me to where they're working on it." She says. "It's shaped like...."

She thinks for a bit before talking again. "A trefoil knot." Senku raises a brow at this. Such a strange design for this? He wonders why.

"It's really small, maybe like the palm of your hand." She raises his hand so she can replicate what she's talking about. "It's strange, though. Why would my father take place in this project? Normally, he would invest in the next big technology; making sentient robots is what he's trying to do. Why work on something so small?" She ponders before something catches her eye.

Quickly looking to the side, where she saw a flicker of light, she didn't find anything out of the ordinary.

"Anyways, I want you to keep this between us. If it's this serious, I'll tell you once I learn more." She promises. "I do have a good memory, remember?" Teasing him a bit.

He nods, "Let's go home. We have school tomorrow."

The two walk home, playfully arguing between themselves, but Senku can't help but feel like someone is watching them.

࿐⸻༺ ෆ ༻⸻࿐

[Name] was acting strange days before the accident, often looking around, almost paranoid but never said anything to him. Clearly, he did not want to worry him.

And that's what he regrets the most in the modern world. If he had tried to at least convince [Name] to stay at his house instead of letting her go to a business meeting with her dad.

The car accident wouldn't have happened, which would have led to [Name] staying in the hospital for days.

Only to receive heart-retching news from Byakuya, who held a box in his hands, breaking the news to Senku.

"[Name] told me to give this to you." He spoke very softly to the white-green-haired boy, who blinked slowly; Senku was getting ready to go see [Name] like he'd done since she'd been admitted to the hospital.

Confused, Senku grabs the box only to flinch when he feels how heavy it is. "What the hell is it?" He says. "No way [Name] carried this heavy thing around."

Opening the box, he peeks inside to find what looks like a minimized-sized doll that shares [Name]'s appearance.

"A doll?" He mumbles even more confused. Only to be speechless when the doll slowly opened its eyes to look up at him.

"Leek." It says proudly, which makes Senku's eye twitch. This thing is one billion percent made by [Name]. He thinks to himself.

Byakuya places a hand on his head, which makes the red-eyed boy look at him confused.

It was February 2nd when [Name] had fallen in a coma.

taglist- @frootloopscos @itsnotsh1v4n1 @lovingyeet @kazuubaby @awwwia @foulbreadpaenut @verysanebsdfan @the-wild-tomato @copycat-namjesus @arimakanav @cchuisme

[thelonestarinthesky]

⁸. ⁿᵒ ᵃⁿˢʷᵉʳ

⁺₊✦₊　　

pairing: senku x f!reader

chapter 8 of 2/2- i. senku

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Taiju and Yuzuriha noticed that Senku had grown quiet sometimes, sometimes pausing in between conversations about what he was working on, staring ahead in the distance before talking again.

He had only grown more frustrated since [Name] hadn't shown any signs of waking up and he's been itching to get the bottom of it. She was fine a day before their anniversary, laughing and smiling cheerfully, and had no signs of any coma-related symptoms. Then, the next day, she was in a coma with no explanation that even the medical staff could explain.

"What's her name?" Yuzuriha asked him quietly; the [Name] ]-like doll was quietly writing a few formulas for him on the bed.

"She doesn't have one. Although she knows my name, [Name] must have programmed her to know everything about me." Senku says arms crossed as he watches Taiju poke the doll machine swatting his hand away.

"Master Senku said I need to finish this before the day ends." The little robot resembling [Name] says, annoyed at Taiju, who keeps poking her cheek.

"She's so human-like, you can't even tell she's an android." The brown-haired boy says Senku kept staring at the small android; it's not tall, it barely reaches his knees, and it can fly in the air with no problem.

To him, seeing an android this advance is mesmerizing and just heart-aching.

[Name] was supposed to give the small android to him directly, not Byakuya; he had learned from the recorded messages played by the android that this was supposed to be his anniversary gift from her.

This android, who resembles his girlfriend, was supposed to be his assistant if she couldn't be there.

"....the best name it can have is naming it after its creator." He says as Yuzuriha looks back at him, she smiles sadly at this.

"Little [Name]."

࿐⸻༺ ෆ ༻⸻࿐

Senku and Little [Name] stared down at what they had just done, the little android leaning in as Senku looked dejected.

"No! No, it looks nice!" She tries to cheer him up, clearly panicking. "Ooooh, you should definitely become a hair stylist!"

"I've never seen a perfectly cut bang!" She says, sweating.

Senku groans, rubbing his face, refusing to look at his own terrible actions. [Name]'s hair had obviously gotten longer during her coma and he thought it would be a good idea to trim and keep her hair neat. But he screwed up badly.

He slowly looks down at her face; her right eye is covered by her bangs, while the rest of her bangs are cut so poorly. He thought he could do a clean-cut but messed up halfway through.

"She's going to kill me." He whispered, pale.

"Don't worry Master Senku, we'll fix it." The android holds up the scissors again, but he holds her back. "N...no, we should probably stop before we make it worse."

—

Yuzuriha squeals. Happily, she had hogged Little [Name] for the day, and now the two were having a small fashion show.

"Aw, you look cute in anything!" She says, her eyes sparkling in inspiration to make new clothes.

.

"Let me down! I can't give you advice about confessing your undying love for Yuzuriha! I'm an assistant for Master Senku, not you!?" Little [Name] shouts angrily as Taiju carries her under his arms, clearly not flinching as the girl squirms around to get away.

"Master Senku, help!!"

.

Senku stared at Little [Name], who was happily eating a piece of warm bread. She didn't need to eat, but he did it out of habit; although she was an android, she resembled a human. Plus she enjoyed eating sweets.

࿐⸻༺ ෆ ༻⸻࿐

It's been a year, Senku being 16 now but [Name] remained in her eternal sleep. Unfortunately, her father moved her to a private hospital because her coma-like state was leaked to the media and Yuzuriha had caught someone from the media inside [Name]'s hospital room, let in by bribing a nurse.

"Sorry it took so long to go get the cake; the nurses had it in their staff room," Yuzuriha says, placing the cake on the table beside the bed.

"It's been a year huh?" She says quietly, the room was quiet, besides the machines keeping [Name] alive; the doctors had officially declared her brain dead a couple of days ago due to her situation never improving. It was hard on everyone when the doctors suggested preparing for the worst, taking [Name] off life support.

Of course, her father had immediately shot the idea down, saying he was paying good money for the doctors to find what caused this whole thing when she was fine; she should've been fine.

"She's going to wake up, kids." Byakuya says, trying to lighten the mood, "It might take a couple more weeks or months, but I have a feeling no one in this room is going to give up on her."

Yuzuriha wipes her eyes, pumping her fist. "Right! [Name] is going to come back, I know it."

"Yeah! Or else Senku is going to become a widow and be sad all his life!" Taiju says, copying Yuzuriha's enthusiasm.

Byakuya laughs at this, wrapping his arm around Senku's neck, "That's right, kids; my future daughter-in-law is going to wake up and marry our dear Senku!"

Yuzuriha and Taiju agreed at this; Senku stared down at the peaceful face of [Name], one of his hands holding onto her limp hand.

His expression was unreadable, eyes gazing down at his girlfriend with such tenderness but a hint of sadness. He wouldn't say his feelings out loud, but everyone could tell from his silence.

After Taiju and Yuzuriha had left a couple hours later, Byakuya was cleaning up the room when Senku spoke up.

"Take Little [Name] with you to space," Senku says, surprising Byakuya, but the look on Senku's face made it hard for him to say no to his son's wish.

"Let [Name]'s android go to space with you."

Byakuya only sighed and smiled at him, "All right."

.

Swnku sat beside the hospital bed, his hands rubbing the back of [Name]'s hand gently, in his hand, his phone, watching the live stream of Byakuya getting ready to enter the spaceship to take him and the other two people to space.

"Looks like the old man is finally going to space, [Name]." He spoke to the [H/C] haired girl.

The live broadcast is Byakuya taking the microphone from the woman reporter, who looks flustered upon seeing him.

"Senku! I know you're not the type to watch a broadcast like this but...I swear I'll bring back a ton of scientific souvenirs for you and bring Little [Name] safe and sound!" Byakuya says, grinning at the camera while Sebku lets out a laugh at this.

"Yeah, yeah, shut up already." He says, smiling slightly at the screen of his phone.

"You hear that, [Name]? Your creation is going to be back soon, and so is the old man; he's been pretty lonely without, too, so wake up already." He gently flickers the girl's forehead before sighing, burying his face in his arms on the bed.

"....just wake up already," Senku mumbles to himself. "..or give me a sign that you're not really brain dead."

Silence was his only answer and has been for the last year. 

3 days later, all of humanity was turned to stone by a mysterious green light. 

taglist- @frootloopscos @itsnotsh1v4n1 @lovingyeet @kazuubaby @awwwia @foulbreadpaenut @verysanebsdfan @the-wild-tomato @copycat-namjesus @arimakanav @cchuisme

[thelonestarinthesky]

¹. ....ᵃⁿᵈ ˢʰᵉ ⁱˢ

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pairing: senku x f!reader

chapter 1 of 2/2-i.senku series

a/n: the next chapters are gonna be flashbacks until the story is back to the present!!

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Standing in the village cemetery among the gravestones, Ruri and Senku shared a moment of quiet reflection. "I wanted to ask; the reason you requested a divorce immediately after becoming chief is that you already have someone waiting for you, right?" she asked softly.

"She was mentioned in the hundredth tale," Senku replied, his hand twitching at the thought. "Correct?" Ruri's silence answered this.

"That's right. I'm not surprised my father included her in the hundredth tale; he was rather fond of her." Ruri noticed how tense he became at the mention of this girl.

"... You didn't say a word about her when I became chief. The rules stated that to participate in the Grand Bout, you needed to be over 14 and unmarried," he pointed out.

The blonde girl smiled knowingly. "I thought it was best to leave out that small detail," she chuckled, glancing up at the stars. "... That you already have a wife."

Senku looked at her in disbelief. "I don't—" He paused, then sighed. "... Yes, I have a wife," he admitted, though it sounded forced. "You mentioned that she's in the hundredth tale; what is her story?"

"Sleeping Beauty," Ruri began, prompting a visible cringe from Senku. 'Of course, my old man would think of something like that,' he thought.

"Before the princess became Sleeping Beauty, she lived a peaceful life. She had family, friends, and a lover. But at the age of 16, her health deteriorated. She was supposed to get better, but one day, she fell asleep and never woke up. To this day, she remains in that deep slumber, waiting for her lover," Ruri concluded. "This story is exactly meant to teach survival skills, don't ignore a hit to your head even if you think it's nothing serious because it could be more serious in the end."

A silence settled between them before Senku looked up at the night sky, a breeze swaying them slightly. "If it's alright with you, I'd like to keep this between us."

"Of course," the priestess replied, smiling softly. "If that's what you want."

"[Name]—that's what her name is. She's my lover. We've known each other since childhood, long before the world turned to stone. Love is illogical, yet..."

His eyes began to well up with tears, but he blinked them away. "I'm going to bring her back once the Kingdom of Science is stable enough for her," he said, determination in his voice, grinning. "That's the least I can do for her."

"I look forward to meeting her," Ruri said with a warm smile. "You'll love her; I'm a billion percent sure," Senku added quietly.

__________

"Come on, Senku. We're going to see an old friend of mine," Byakuya urged as he tried to coax a young Senku out of his room. "You've been reading all day. My friend has a daughter your age!"

Somehow, Byakuya managed to get Senku out of the house and into his car. They drove off and soon arrived at a large gated mansion, where Senku saw men unloading furniture from trucks.

"Old man, is your friend loaded?" Senku asked, curiosity piqued.

"He's the CEO of a company that makes advanced machines." This caught Senku's interest significantly. Byakuya was let in by the guard at the gates, and he parked the car. As soon as the car was turned off, Senku bolted out.

The little boy ran over to where a man stood, giving orders to the workers carrying out furniture. "Where are the machines?!" Senku exclaimed, excitement bubbling over as Byakuya hurried behind him.

"Sorry, friend. This is Senku, my son," Byakuya said, guiding Senku to stop being rude and properly introduce himself. "This is the little guy I've been talking about. He's a year younger than your daughter, so we should be able to arrange a playdate."

"No way," Senku replied bluntly. "I don't want a stupid playdate. I want to see the machines you make." The red-eyed boy said to the man, who smiled down at him, intrigued.

"He's just as you described, Byakuya," the man chuckled, patting Senku on the head. "My daughter will definitely get along with him. Young man, if you want to see those machines, I’ll make you a deal."

Senku pouted at this. "A playdate with my adorable daughter. I think it would benefit you if he got along with the heir to my company."

"Deal," the green-haired boy said, a bit annoyed, but willing to do anything to see how those machines worked.

"...I don't think you should be encouraging him," Byakuya remarked, sweat dripping down his forehead as he noted Senku's determined expression.

"One playdate, and that's it," the little boy declared, grinning up at the man, who simply smiled back. Senku couldn't help but think how easy this was going to be; soon, he'd have access to the most advanced technology Japan had to offer. With his hands on his hips and a proud grin on his face, he said, "Alright, where's the little brat? I need to meet her."

masterlist taglist- @frootloopscos

if you want to be in the taglist, please comment on the series Masterlist so I can keep track!!

[thelonestarinthesky]

². ᵖˡᵃʸᵈᵃᵗᵉ

⁺₊✦₊　　

pairing: senku x f!reader

chapter 2 of 2/2-i.senku series

a/n: I'll be doing a poll soon regarding this series later in the day, I'll keep it up for a couple of days

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Senku was well aware of how much in awe the [h/c] haired girl was, practically shining glitter. He was sweating bullets but tried not to let it show; after all, he needed to make sure this playdate went well so he could get his end of the deal.

"A leek." She says in awe, shaking in her seat.

His eye twitched at this.

Her butler was writing something down upon hearing this. The girl stood up and this made him flinch. "Is your hair always this pretty?" She says with a high-pitched voice excitedly, gushing about his strange but cute, leek-shaped hair.

'This girl can't be a year older than me.' The 6 year old thinks. 'Much less the heiress of a big company like her old fart.'

"Senku, can I design a robot based on your hair?!" The older girl says as he's just annoyed from hearing her voice.

Her butler didn't waste any time measuring his hair and gently plucking out a piece of his hair.

"My apologies, Master Senku." The bulter says, bowing before handing him a small envelope as compensation.

The older girl was happily doing something on her stretch book before handing it back to her butler. Senku, having enough of this, stood up, knocking down the cup of tea onto the tablecloth. "Can we do something else? I hate playing princesses with you." He says bluntly.

The girl blinks at this before nodding. "Oh, okay." She gives him a smile, standing up, she goes over to him and grabs his hand. "We can go look at the flowers outside." She beams, tugging him forward.

They only lasted an hour outside the gardens in the backyard before Senku got bored. Instead of letting her suggest what to do next, he made his mission to stroll inside the mansion like he owned it, the [H/C] haired following behind, holding onto his shirt, which he tried several times slapping away but no luck.

He knows that her family is still moving things in so the library they must have, like all rich people do, should be around here somewhere.

"What are you looking for?" She asks him, which he ignores. Looking around corners, he finally finds the library; it is filled with books from top to bottom. Without thinking, he runs in, making the girl flinch, she runs after him. "Wait for me!" She cries out.

Senku had found a load of new books on topics he'd read, but these were clearly much better since they actually went into deeper detail. With a pile of books he carried.....more like the [E/C] haired girl carried moved to a corner, Senku sat down and began to read happily.

"Are we just going to be reading books?" The girl asks, sitting down on her knees, tucking in her dress, very ladylike as she stares at him.

When she doesn't receive an answer, like a cat waiting for its owner, she sits there, staring at him until he finally finishes a section. 

Very patiently, she waits and listens as he passionately rants, like a kid on Christmas. Blinking, she stares into his eyes, which remind her of the brightest apple she's had in the morning which makes her hungry again.

When she finally lets out her opinion, it seems like she sparked more from him. "Woah, you know about this too?!" He exclaimed.

"I thought you were just like all the other kids my age."

For the rest of the day, the two spend the time in the library, her butler often bringing in snacks.

".... I made these blueprints." She says shyly, rolling the paper in between them. Senku finally took a break and stared down at the paper, reading all the notes and looking at the designs.

"I want to make robots like my Dad makes machines." She says, pointing. "But he says I can't use any grown-up machines because I'll get hurt." She pouts at this. "So my butler follows my blueprints and makes the equipment for me. And I put them together like a LEGO set." She beams at this.

"So this is like Science but with robots," Senku says, clearly impressed. "Pretty amazing."

"Yeah, I guess so."

It was clear the two were bonding from the revolution of this, and of course, Senku ruins it. "What's your name again?" He asked, which made the [H/C] haired blink at him before looking dejected.

"....it's [Name]." She mumbles with an emotionless voice.

"Right, [Name], can I keep coming over-" She perks up at this, she's never had a friend, could he maybe be the first- "so I can read more books." And she's back with that dejected expression.

"...."

"...and maybe I can see you work on that cool robot you're making." Senku finishes off, looking up at her with a grin before choking upon seeing her expression. "Oi, what's wrong?!"

࿐⸻༺ ෆ ༻⸻࿐

The playdate ended with [Name] finally coming out of her dejected state when Senku actually tried to cheer her up, and he was just being blunt like always. Kids tell the truth after all.

"Mister Byakuya!" She squeals happily, running into the man's arms as he picks her up, spinning her around.

"[Name]! It's nice to see you're doing great now!" Byakuya exclaims.

Senku watches this interaction with annoyance.

"Papa isn't home right now because he's at the office," the girl says as soon as she's let down.

"Can Senku and I have another playdate?" She begs his dad.

"Sure, sweetie." Byakuya petted her head gently. "I'll drop him off next weekend." She smiles at this before thanking him.

While walking to the car with Byakuya, Senku looks back to see [Name] waving at him frantically. "Bye Senku!" She says loudly as her butler bows at them.

࿐⸻༺ ෆ ༻⸻࿐

Sitting in his room, exhausted as hell. Remembering the envelope that Butler gave him, he opens it, expecting it to be a stupid thing, but he's in awe when the envelope is filled with money. A chunky, pile of cash.

masterlist taglist- @frootloopscos @itsnotsh1v4n1

[thelonestarinthesky]

⁺₊✦₊　　

2/2- I. Senku Masterlist

0. Prologue

1. ...and she is

2. playdate

3. once colored memories pt 1

4. once colored memories pt 2

5. like him

6. 2/2

7. goodbye for now

commissioned art from baxtli on fiverr (´∀`) based off my oc and senku

[thelonestarinthesky]

⁵. ˡⁱᵏᵉ ʰⁱᵐ

⁺₊✦₊　　

pairing: senku x f!reader

cw: death, inspired by the satosugu break up scene

chapter 5- 2/2- i. senku

⁺₊✦₊　　

Death is a normal part of life; every single human being on earth will reach that end no matter how much they try to escape its grasp.

Senku sits in the large room. It's quiet, of that usual chattering, and only the sounds of muffled cries and sniffles are heard.

He looks towards the front of the room. [Name] sat beside her father; she wasn't doing well, and the distant, dull look in her eyes and the dark bags underneath it showed her well-being. The black kimono she wore shuffles slightly at her movement. Her father gently rubs her back and brings her back into another hug.

The boy feels his throat clench slightly before looking back down. Byakuya, who was sitting beside him, stands up and heads over to the pair.

"Please, accept our condolences." He hears the old man say them before hugging [Name] who hugs him back, her hands clenching onto Byakuya tightly.

Senku isn't quite sure how to comfort her, especially when it comes to something like death.

After a couple of hours, Senku and Byakuya get ready to leave, "I hope...[Name] feels better. This is hard on everyone." Byakuya tells [Name]'s father, who just nods, smiling sadly as the three look at [Name], who hasn't moved from her spot, her head bowed in front of the alter, the small robot held in her arms tightly, kneeling on the floor.

"We'll be going all night." Senku looks at her dad.

"We'll come to the funeral ceremony."

The two men speak among themselves more, Senku was debating if he should go to [Name] and try to offer some words of comfort.

He felt a hand on his head; it was her father, "Go. She needs you." He says to him, the way her dad is smiling slightly, clearly trying to be strong for his daughter.

Without a word, he slowly walks over to the [H/C] haired girl, sitting down beside her.

It didn't even seem like she realized his presence, clearly in a daze, until he called out to her.

She slowly looks up, and his heart drops slightly upon seeing the girl look so....defeated, the tear stains and the puffy eyes....he can't stand to see her like this.

He gently caresses her face, and this makes her break down again; tears swell in her eyes as he wraps his arms around her, cradling her close, as she cries, face buried in his black clothes; hearing those cries of pure sadness makes his own start to tear up.

And for once in his life, he cried slightly with her.

࿐⸻༺ ෆ ༻⸻࿐

It's been around three months or so. [Name] sat in his room, watching as he worked on his next science experiment; she's been staying at his home more these last few weeks.

She hasn't been herself since the day of the funeral. He gets it, but...

"Hey, it would be great if you could make me a robot." [Name] looks away from his experiment to look in his eyes. "Like a robot assistant." He thinks out loud.

The girl looks away at this, clearly fidgeting nervously.

"...I....I'm not sure, I don't think my robots are that good. I can ask my dad for the latest one for you instead." She says quietly.

He hadn't seen her work on her blueprints nor asked him for help on certain things.

"How so? Since you have access to the latest technology, your robots are high-tech." He says, picking his ear.

[Name] bit her lip, gripping her shoulder as she refused to look him in the eyes.

Senku blinked, seeing the expression she was making; those dark eye bags of hers never went away, and she looked pale. "....[name]?" He calls out quietly; he stops what he's doing and goes over to her.

The girl purses her lips tightly. "....my robots won't help you. It didn't help Grandpa Joel."

Her voice cracks at this.

Senku's brows furrow at this. "You made that robot to help him with his memory, not his health. You didn't know he was going to collapse in the garden." He says to her.

"I should've added that to the robot before giving it to him." She says, hugging herself. "I should've known at his age that—"

Senku sighs, "Get over it. How were you supposed to know?" He says frustrated.

The [H/C] haired girl froze at this, clearly not expecting him to be blunt about death itself.

"Grandpa Joel is dead, and you're telling me to get over it?" She stands up suddenly, tearing up.

The white-green-haired boy looks up at her, "I didn't mean it like that, you know that. What I'm trying to say is that moping around isn't going to help."

He stands up as well, clearly annoyed and frustrated. Senku knows she's grieving, but the old man wouldn't want her to give up on her passion.

"Grandpa Joel wouldn't want you to just give up and bury yourself in sadness." He tries to reason with her.

"How would you know what he wants for me? He wasn't your family; he was mine, and I failed him with my stupid robot that didn't even work when something serious happened."

She yells at him, her eyes getting blurry with tears.

"Everyone dies. It's the natural cycle of life."

[Name]'s hand turns into a fist as she tries not to cry in front of him, "him. You, me, everyone is bound to die, so get it through that thick head of yours and stop thinking his death was your fault!" Senku says to her, clearly getting frustrated with this whole situation.

Downstairs, Byakuya looks towards the stairs leading upstairs, hearing the shouting get louder. He gets up and heads over to Senku's science room. He knocks before opening the door. He stares at the scene; the two are arguing, something he's never seen since they met years ago.

Suddenly, Senku says something out of pocket, being blunt as he usually is, but [Name] doesn't think so.

A loud smack is heard as tears roll down her face as she turns and runs out of the room, leaving Senku standing there, holding his red cheek as Byakuya stares at him.

࿐⸻༺ ෆ ༻⸻࿐

It's been around a month since [Name] went back to being homeschooled, and she has completely been avoiding him and everyone else.

He's been grounded, too; after Byakuya asked what happened, he was disappointed with Senku, saying that people grieve in many ways and his words were extremely hurtful to [Name], who was clearly hurting badly.

"I think you should apologize," Taiju says. He, Senku, and Yuzuriha were at the library.

"I agree, I'm not sure how it feels to lose someone close to you, but [Name] hasn't been herself, and I'm worried," Yuzuriha says, frowning.

Senku rolls his eyes, crossing his arms, "She'll get over it... I think." He mumbles the last part to himself.

The friends are clearly not sure what to do since it's clear Senku isn't going to make the first move to apologize to the [H/C] haired girl.

Trying to get ideas, Yuzuriha pulls out her phone. [Name] had given them the latest one for Christmas, and her brows furrowed at the screen.

"Hey, didn't [Name] say she didn't want to reveal herself to the public until she was 17?" The two boys look over her shoulder to see an article.

"The sole heiress of the [L/n] company." Taiju read out loud.

The three read the article, [Name] had officially been revealed to the public and said to be moving overseas as soon as possible. They all paled at this, [Name] never told them about her moving overseas.

"You have to do something, Senku," Yuzuriha begged him, tearing up.

"You're the closest to her."

Her words echo in his head as he runs to [Name]'s house. He pants heavily, out of breath. The security guard at the entrance wasn't there, so he got in easily.

Getting to the front door, he spots a group of people, moving around suitcases and furniture.

He stops to catch his breath; the workers he's grown up around all have this guilty look, avoiding his eyes completely.

Senku looks around and finally sees [Name] walking to the car parked. He takes a step forward.

"[Name], explain yourself." He says, and upon hearing his voice, the girl stops and slightly turns her head to the side.

"You already heard it from the articles, I'm leaving." She says bluntly. "That's all there is to it."

Senku grits his teeth, "So you're just going to leave?"

[Name] slowly turns to him, and his eyes widen upon seeing her face; she looks pale, those [E/C] eyes that would stare at him with that soft gaze when he explained how certain things work from the moment they met.

"You don't need me; you're already a genius; you can do it yourself." She says quietly. "It's clear from the start we're different; you're a normal person, while I'm the heiress of a company; I don't have a choice. My creations won't help anyone, I'm destined to just make the decisions behind the scenes."

She turns back around, "I've made my decision, and I've been avoiding my duties, so it's time I leave to someday become the CEO of my dad's company."

Before she gets in the car, she looks back at him, giving him a sad smile, "Tell Taiju and Yuzuriha that I'm sorry."

Senku feels like he's glued to the ground before he finally moves his legs. He tries to reach her, but he's held back. "[Name]!" He shouts, struggling against the ones holding him back.

He could only watch as the car took [Name], his childhood friend away from him. "[Name]!"

And that was his first heartbreak.

a/n: honestly, senku might be a little ooc but I would think he would very blunt as a kid and learning from it as he grows up

masterlist taglist- @frootloopscos @itsnotsh1v4n1 @lovingyeet @kazuubaby @awwwia @foulbreadpaenut @verysanebsdfan @the-wild-tomato @copycat-namjesus

[thelonestarinthesky]

⁴. ᵒⁿᶜᵉ ᶜᵒˡᵒʳᵉᵈ ᵐᵉᵐᵒʳⁱᵉˢ ᵖᵗ ²

⁺₊✦₊　　

pairing: senku x f!reader

chapter 4 of 2/2-i.senku

a/n: working on request now since the next few chapters are angst, so I'm preparing you guys

⁺₊✦₊　　

During Senku's last year in elementary school, he was getting ready to launch his third spaceship he made with Taiju and [Name]'s help.

The [H/C] haired girl was sitting on a bench as they waited for Taiju to arrive so they could launch it. She's been looking more tired and pale these days, but she just reassured him that she was fine, saying she was just staying up late again.

She felt another cough coming when she suppressed it when Taiju's voice was heard. "Senku! [Name]! This is Yuzuriha from the Craft Club. She said she could make something small and light for the spaceship." The boy exclaimed as Yuzuriha blushed.

"Um, it's not perfect, but I made these dolls. I hope it's okay." She says, taking out four dolls that resembled the four of them.

[Name] stood up, walked over, and smiled. "They're so cute." She says to the brown-haired girl, who smiles shyly.

"Thank you, I'm glad you like them," Yuzuriha says. The two girls giggle as they smile at each other.

࿐⸻༺ ෆ ༻⸻࿐

Having sleepovers was the best, sure; having Senku over sometimes was great, but [Name] wanted to experience girls' night.

Yuzuriha was blushing furiously, squealing in a pillow as [Name] teased her about Taiju.

"You two would be so cute together! The way he looks at you is cute and straight out of a novel, I wish it would happen to me soon."

Grandpa Joel was on vacation for the time being, so the girls were home alone with a maid in the kitchen.

"What about Senku?" Yuzuriha asked her friend, who blinked at this.

"Huh? What about him?" Yuzuriha frowns at this before grinning. "I see how you look at him. Do you like him?" She teased [Name] who was starting to get red, ears burning at her teasing. Oh, how the tables turned.

".....so what if I did?" [Name] says mumbling, blushing shyly. "...it's not like he's going to feel the same. Science is all he ever needs."

Yuzuriha frowns, "I'm sure he likes you." She says, trying to cheer up her friend. "Don't you notice how every time he makes something, he always shows or gives it to you last? And he always looks at you with this look, waiting to hear what you'll say."

[Name] buries her face in the pillow against her chest, thinking over her words. It was true; Senku made cotton candy for them; he gave her the last batch of the candy with that stupid grin of his as she accepted.

Tired, Yuzuriha flops down on the bed, sighing, "I'll be your bridesmaid at your wedding." She whispers as the [H/C] haired girl lays down beside her, looking at her friend with an unreadable expression. "...and I'll be yours." [Name] says after.

She's not sure if she should tell her and ruin this moment between them, talking about the boy they like and the future of weddings.

"Yuzuriha.." The older girl called out faintly; she was sure that her friend had fallen asleep when she didn't get an answer.

".....I'm—"

Words spill out of her lips as Yuzuriha sits up, pale, clearly worried, scared as she looks down at the [H/C] haired, her eyes tearing up as the bottom of her lip quivering.

The next morning, a ring is heard before, and moments later, Senku pops out from a small door that he used to get into her house more easily.

He had built a passageway for them to use so they didn't have to walk back and forth since Senku had noticed that she looked out of breath when walking to his house sometimes. It was still being tested, so only he was using it for the time being.

"Oi, why is your face puffy?" He asked, annoyed, as [Name] lay on her bed while Yuzuriha was downstairs eating breakfast.

"A secret. Girl's night." She simply said quietly.

Senku stares at her with a look before letting it go. "Anyways, get dressed; we'll be working on something incredible, so get excited." He grins, dragging her out of bed and out the door; glancing back, he notices the bags under her eyes and the tear stains.

Looking away, he lets go of her wrist before grabbing onto her hand properly.

"Come on idiot, let's get some ice for your face. My assistant can't be seen looking her worst." His words make the girl smile, even if it's small; after all, it was his way of trying to cheer her up.

"Yeah.....you're right." She says softly, her hand tightening around his ever so gently.

࿐⸻༺ ෆ ༻⸻࿐

[Name] was set to start the school year of middle school with Senku, Taiju, and Yuzuriha. They had planned a small welcome party in the science club once she was officially allowed to go to classes with them.

During the first week of school, the tests that [Name] was focusing on were done. Once the teachers graded them, she would be set to go to her correct grade, a year ahead of her friends.

Yuzuriha was pouting sadly as they sat under the cherry tree at the park. "I was hoping that you would be in the same year as us....although it makes sense they would make you go up a year." The girl sighs as Senku and Taiju walk over and sit down beside them.

"So, how's the normal life treating you so far?" Senku asked the girl who looked up at the sky. The clouds forming shapes the sky.

She thinks for a moment, letting her thoughts come together; a breeze flows by them, making Yuzuriha shiver; Taiju quickly offers his jacket to her.

"....it's nice, I don't feel isolated as I did when I was homeschooled." [Name] mumbles loud enough for Senku to hear as his gaze softens a bit. "... before meeting you." She smiles softly.

She's just thinking about the years after meeting Senku, he got her out of her house, making friends she didn't think she would have. He even made a presentation, with Taiju and Yuzuriha's help, to present it to her father to allow her to attend school with them.

She can't help but think about how lucky she was. Just as she opens her mouth to speak again, she feels something drop around her shoulders; looking away from the sky, she looks down to see it is Senku's lab coat.

Blushing, her eyes met Senku's, and it was quiet between them, the breeze making their hair sway slightly in the wind.

'.....I'm glad I met you.' She thinks as she stares into his ruby eyes.

"....Senku...." She whispers to him as he hums softly, "....I'm working on something. Can you help me with it?"

Senku thinks for a bit, "It depends." He says.

"...It's for Grandpa Joel, I'm making him a robot to help him remember things." The girl explains.

Yuzuriha, chirps in. "Can I help too?" Taiju buts in as well. "Count me in as well!!" He shouts loudly.

"That's why you have these, huh?" Senku says, annoyed, his fingers cupping her face gently, squishing her cheeks, using his other hand to tap on the slightly visible eye bags under her eyes. Her cheeks flushed a soft pink at his touch.

"Staying up all night won't help the old man you know." He scolds her as she pouts in his hand.

"Speak for yourself," she whines as Yuzuriha giggles. Taiju glances at the brown-haired girl with a loving gaze while Senku continues to scold the girl as he pinches her cheeks.

It took them two months to finish the small robot, Yuzuriha, making tiny clothes for it before [Name] gave it to Grandpa Joel. The elder didn't want to accept it at first, but upon learning the reason....

"Grandpa Joel, it's to help you! My friends and I worked on it together so it can make your life easier." The girl explains, holding out the robot to him.

"It's built to remember your commands, work schedule, and other things." She exclaims as Senku watches from the top of the stairs, his cheek resting on the palm of his hand.

"Thank you, I'll use it wisely. Tell your friends I really appreciate this." Hugging the older man, the [H/C] haired girl knows that he's gotten older; she's noticed that he forgets things easily now and suggested that he stay home and not worry about her going to school now with her friends.

Later that night, lying in bed, she's staring at the ceiling before the small door that connects a passageway to Senku's house opens slightly.

Sitting up, she sees Senku crawl out.

"Senku?" She calls out quietly. He's been coming over more often ever since Byakuya started his astronaut training program a year ago.

"Scoot over." The green and white-haired boy says. Moving a bit to the side, she watches as he flops down.

"....sleepover again?" She asked him as he nodded, closing his eyes; sometimes she thinks that he gets lonely at his house since Byakuya is out late on nights like this, so Senku comes over without a word.

"Your dad isn't home?"

His silence answers her question as she sighs quietly, lying down beside him. Her eyes stared at him before closing her eyes, "It's okay; I like it when you sleep over."

Senku looks over at her, her face inches away from his. He's awfully quiet, not his usual self tonight; his eyes meet her [E/C] as she stares back at him.

He can see how they shimmer in the moonlight; even when the room is dark, they are looking at him like he is the only one in the world. This moment feels too peaceful. He's not sure what to say.

"...I really am glad I met you, Senku; even if you're down bad for science, I like that about you." She grins at him before getting sleepy. Falling asleep, Senku looks away, his ear turning bright red as his heart beats rapidly. He swears that it could wake up [Name] with how loud it was.

Deciding to go to sleep as well, he closes his eyes before opening one eye to peek over at [Name]; seeing that she is fast asleep, he hesitantly reaches over and intertwines their pinkies together before falling asleep beside her.

masterlist taglist- @frootloopscos @itsnotsh1v4n1 @lovingyeet @kazuubaby @awwwia @foulbreadpaenut @verysanebsdfan

[thelonestarinthesky]

³. ᵒⁿᶜᵉ ᶜᵒˡᵒʳᵉᵈ ᵐᵉᵐᵒʳⁱᵉˢ ᵖᵗ ¹

⁺₊✦₊　　

pairing: senku x f!reader

chapter 3 of 2/2-i.senku

a/n: I'll be posting requests soon

⁺₊✦₊　　

Hanging out with the [H/C] haired girl wasn't actually half-bad; sure, she was annoying, but she had a passion for whatever Senku was reading or working on.

Since she was homeschooled, Senku always came over after school, not even bothering knocking, which Byakuya has tried to get him to at least be polite every time he dropped him off.

[Name] didn't really mind, she had grown used to waiting for the doors to the mansion to burst open after 4. Senku strolled inside like he owned the place before dragging her to the library to finish off where they started. While he was reading, she would be drawing on a piece of paper, and once he was done, she would sit quietly as he yaps along about what he learned.

The [H/C] haired's butler poured the juice into his cup as the girl munched on her cookie, listening to him.

"....anyways, my teacher at school asked us what we wanted to be when we were grown-ups. Obviously, I said I'm going to space." He says seriously. "But I'm going sooner than that." Senku looked proud at this.

"An astronaut?" [Name] says quietly, thinking of Byakuya.

࿐⸻༺ ෆ ༻⸻࿐

With Christmas coming along, [Name] had managed to walk to Senku's house, which was behind her home. With enough begging, her father had managed to help Byakuya move out of the apartment complex he and Senku lived in and into a bigger home.

Her butler had tagged along and when she rang the doorbell, Byakuya answered the door. "Oh, [Name]!!" He says cheerfully. "Senku isn't home yet, I'm guessing he's hanging out with his friend from school."

Taiju met her a couple of days ago after Senku had managed to sneak her into his school after classes were done. The three went to the park where Senku was using a magnifying glass to burn a paper using the sunlight hitting the glass.

Letting the two in, Byakuya lead them to sit down in the living room.

"I didn't see your car outside." She asked him. The man sighs sadly, clearly dejected. "I sold it." He says.

The [H/C] haired and her butler flinch at this. "I used the money to buy things for Senku; ever since he's been reading those books at your house, his interest in Science has grown a lot more."

"...." The girl looks up at him before looking down at the floor ahead of her.

Suddenly, getting up from the couch, "[Name] don't get up so fast-," she tugs on her butler's arm, "I changed my mind, let's go home, I haven't started on any presents." She exclaims.

Saying goodbye to Byakuya, the two left the Ishigami residence in a hurry.

"Grandpa Joel, I haven't started on Senku present." She says the older man who opens the door to her small craft room in her home.

"Also, I want to use my allowance to buy Byakuya a new car."

Grandpa Joel blinks at this, clearly taken aback by this. A 7-year-old wanting to buy a car is crazy. Luckily, her father was away for work so she could let one of the workers buy it using her card without him knowing.

Her butler has been by her side from the moment she turned 2, along with a nanny but she wasn't that close to her as she was with Joel. The old man was a loyal worker of her father for years, and so, he was entrusted with [Name] since then.

For Senku's present, she wanted it to be special since he was her very first friend.

"Grandpa Joel, I want to build a robot for Senku." She says proudly. "I know it's not gonna be perfect like my father's but I want this Christmas to be special." Joel looks down at her, clearly seeing how determined she is, not that he is surprised; she grew up to be very isolated from children her age, born into a wealthy family, setting her apart from those who were born in a lower class.

"....I'll help you, dear." He says, smiling as she beams with the biggest smile on her lips, one he's seen more now ever since Senku came into her life.

Once Christmas came along, [Name] opened the door for the Ishigamis and Taiju. With a warm greeting, she leads them to the living room, a large decorated tree in the corner with so many presents underneath.

After spending time together playing games, Senku watched as the girl started to give out presents to the workers of the mansion. Taiju got his gift soon after, then Byakuya, who she led outside to show him a brand new car of the newest brand.

"Here you go!" She says happily, handing him the keys.

Byakuya's mouth dropped to the floor as the girl hugged him before grabbing Senku and dragging him back inside the house while everyone else was simply frozen with shock.

Gathering his present, the [H/C] haired girl suddenly felt shy; the robot she was supposed to build him wasn't done yet, so she prepared something smaller for him. Fidgeting nervously, she handed him a small box that was wrapped neatly.

"It's not much, but I hope you'll use it for science." She says flustered.

Senku pulled a black card from the box. He read what was on it, and he was surprised. "....this is." He mumbles.

"I get an allowance from my father every month...and since you're my best friend, I want to share it with you." [Name] was flustered at this, the older girl was shaking from being way too nervous to see his reaction.

"Please use it well if it's going to benefit science. There's no limit."

࿐⸻༺ ෆ ༻⸻࿐

Senku was sitting in his room, thinking hard. The old man had brought him a ton of Science equipment for Christmas but he wanted to create something special for the [H/C] haired girl using it.

"[Name] really loves fireworks, the ones that sparkle on the stick, she told me that they remind her of the stars." He had asked Byakuya for what she would like, and the answer was pretty straightforward. A rich girl like her can get anything, but fireworks were her favorite...

His birthday arrived sooner than he expected. [Name] came over with a cake, and Taiju tagged along as well, holding a box in his hands. He asked about it, but Taiju simply told him that it was heavy for him to carry.

Singing happy birthday to him, Byakuya pushed the girl to his side.

"Just because it says Senku's name on the cake and present doesn't mean we can't sing for [Name] too!" He says Senku looks at her, seeing her flustered.

"So, happy birthday to Senku and [Name]." Joel, Byakuya and Taiju said happily.

That day, he learned that they shared the same birthday. When he asked her about it years down the line, she had simply answered that it was his day, she could've celebrated it a day after to make sure the day was about him.

Sitting down outside, the two were looking up at the stars before Senku was given a tiny box. Opening it, he found a small robot inside that resembled him. "I did my best, although Grandpa Joel helped a lot."

Seeking over to see his reaction, her eyes widened when she saw how in awe he was; his red eyes had the same sparkle every time he spoke about science, but they held something else she couldn't quite put her finger on it.

She felt her cheeks heat up, her heart skipped a bit as she continued to stare at him as he examined the robot that was the size of his hand. Her heart felt like it was going to burst out of her chest the longer she stared at him, and she blushed even more when he looked up at her with a gentle smile.

masterlist taglist- @frootloopscos @itsnotsh1v4n1 @lovingyeet @kazuubaby @yn7857 @foulbreadpaenut

[thelonestarinthesky]

Poll Time!!

I wanted to add something to the 2/2 senku ff, it's going to NSFW, since we're going through the flashbacks of the years before reader fell into her coma. It's building up to that and when the world turned to stone. There is going to be a chapter where senku and the reader have underage sex, of course, im still debating if this necessary to the plot. But I'm writing this poll to see what you guys think :) Senku and reader was around 16 years old during this chapter where it happens

[thelonestarinthesky]

⁰. ᵖʳᵒˡᵒᵍᵘᵉ

⁺₊✦₊　　

pairing: senku x f!reader

cw: none

chapter 0 of 2/2 - i.senku series

based off two one shots from my old account

⁺₊✦₊　　

Senku drops the bag of clothes to the floor as he runs ahead; Yuzuriha picks it up before shortly following him further into the cave.

The girl watches as Senku stops at the edge of the small pile of flowers on a large, flat rock; she can't see his face, but the way his shoulders and fists are trembling as he stares down at the stone figure lying in the flower bed. She simply smiles sadly, tears building up in her eyes as he kneels, cradling the stone figure.

He grits his teeth, lips trembling. "....you found her..." He says quietly at the small mecha doll that resembles him, it stares back at him before looking down at the girl who created it. "[name]."

[Name] looks the same as she did, even 3700 years later, despite being in a coma a year before the world was turned to stone; he swore his heart squeezed painfully.

"..welcome back....my idiot."