ASA

dazai x reader —ᡣ𐭩 blurb c/w: mention of suicide (it's dazai what do u expect) a/n: inspired by that one wan! ep where atsushi and dazai's convo literally broke my heart into a million pieces and i was left writhing in pain on the floor :)

“Hey, what flavour is your chapstick?” You ask Dazai, who lays his head in your lap. The breeze is passing through the cherry blossom tree above you, and the rustling of the flowers is a welcome distraction from the stress of a day at the agency.

“Why? So you can tell me it's the one you poisoned?”

“No,” You giggle, covering his eyes with your hand and looking up at the flowers. “I just liked the taste when you kissed me.”

Turning your attention back to him, Dazai's cheeks flush pink, which rarely happens, making your chest hurt. He pulls your palm off his face and brings your knuckles to his lips.

summerboyfriend!katsuki that takes all your ig pics

katsuki isn't a permanent boyfriend. you're just keeping around for the "hot beach couple" pics on you insta.

and his surprisingly good photography skills

you specifically chose him because he's perfectly built in all the right ways. he looks better the less clothes he has on. the perfect criteria for a summer boyfriend that wasn't the case with your spring boyfriend and that's why he's gone now.

katsuki knows this and is most definitely making the most of it while it lasts. you don't think you've seen him with a shirt on since your relationship started. the most clothes he's worn is an open buttoned shirt with beachy patterns.

other than that he stays in swim trunks that hang scarily low on his v-line. and a variation of chains and a specific shark tooth necklace that you said looks "sexy"

some would say he's overcompensating for his role even taking up surfing lessons when you mentioned one of your friends boyfriends does it.

memorizing your favourite bar drinks and constantly buying you beachy dresses. that are always accompanied buy the skimpiest bikinis one can find.

you closet is becoming a too "summer-ish" for your liking but that's a problem for fall.

you honestly think he's having too much fun seeing you in bikinis. encouraging a beach trip at least once a day. "summer isn't gonna last forever." he'd say.

labels. she/her pronouns, y/n is used, reader resembles masaru’s personality.

warnings. light cursing, sibling rivalry/banter, mild violence (sparring), light angst, katsuki being katsuki, occasional soft!katsuki moments, ai used for quirk, light fluff. self indulgent as a older sister lol

as kids, katsuki was always trying to one-up you. if you learned a new move, he needed to master it ten times faster. it was exhausting for your parents, but you secretly loved it.

it started as rivalry—he wanted to beat you. but over time, he stopped comparing and started watching. you were sharp, confident, and strong as hell. and despite how much he grumbled about you being annoying, you were also the reason he never let himself fall behind.

now that you’re both older, katsuki’s picked up this habit of not liking people talking about you in any way that sounds remotely flirtatious. especially if it’s denki. katsuki hates how much denki likes you. it’s hilarious.

❝why the hell was sparky looking at you like that?!❞

❝katsuki. you’re being dramatic.❞

❝nah. he wants to die.❞

people would stop and stare when you two walked down the street. not just because of the familiar fierce expressions, perfect mix of mitsuki’s striking beauty and masaru’s soft features.

your mom teases that you both get that overprotective streak from her. your dad just sighs in the background and adjusts his glasses.

your mom is insanely proud of you. you’re her clone in all the best ways: attitude when necessary, but calculated grace when it matters. she calls you her ❝perfect little menace.❞

your dad is your soft spot. you’re a total daddy’s girl and katsuki pretends to gag whenever he sees you two reading together or fixing up old support gear in the garage.

sunday mornings in the bakugo household are sacred. you and katsuki make breakfast together—him handling the fire, you handling the precision. sometimes you both burn things on purpose just to irritate mitsuki.

your hero name is miststrike, and your costume is sleek, black and with accents of your favorite color, or just all black, with specialized fabric that helps concentrate your mist in high-pressure areas like your wrists and collarbone. katsuki thought it was badass and totally jacked some design elements for his own.

❝…tch. don’t flatter yourself. i didn’t steal that much.❞

❝your gauntlets are literally based on my fog-chambers.❞

❝shut up.❞

during katsuki’s internship with shoto and izuku, endeavor brought you up while training with him. katsuki nearly exploded on the spot. ❝your sister’s quirk is very controlled and calculated. you’re… emotionally driven.❞

❝don’t compare me to her!❞

he does compare himself to you. all the time.

ignition mist is terrifying up close. slippery terrain, no visibility, and then boom—you snap your fingers and light the whole room up.

your quirk has a strange synergy with katsuki’s. you can trap people in mist, and katsuki can blast them once they’re disoriented. in simulations, you two are basically a nightmare to face. one creates chaos, the other delivers the final blow.

katsuki lives for training with you. you don’t hold back, and he respects the hell out of that. even if it means getting sent flying across the training field.

❝i said go full out, dammit! don’t treat me like i’m weak!❞

❝you say that every time, and yet every time you end up with a concussion.❞

❝worth it.❞

sometimes you train at night, just the two of you. the city skyline in the background, the sharp scent of smoke and chemical mist in the air. no words needed—just shared movement and mutual respect.

there was one time you accidentally overdid it and katsuki slammed into a wall so hard he cracked it. you rushed to him, panicked, but he just laughed like a psycho. ❝you finally got serious. damn right.❞

you nearly cried. he still teases you about it.

izuku calls you ❝y/n-nii❞ and it drives katsuki insane. you’re everything izuku admires in a hero—smart, skilled, and kind to everyone, including him. katsuki gets jealous but pretends not to be.

izuku once made a passing comment like, ❝y/n-nii is so graceful and smart. i wish i could be like her.❞

katsuki almost set the common room couch on fire.

❝shut the hell up about my sister in front of my friends, nerd!❞

❝but she’s so cool, kacchan!❞

❝i said shut up!❞

kirishima looks up to you the way katsuki refuses to say he does. he always asks for advice about hero work and battle ethics. you always tell him he’s already got what it takes. katsuki scowls every time.

shoto once compared you to fuyumi and katsuki nearly detonated. ❝my sister’s cooler.❞

you use glasses sometimes, usually while working late or reading hero reports. katsuki has a photo of you in them, but if anyone ever sees it, he will literally combust.

he got his love for loud and classical music from you. you used to blast your playlists in your room, and little katsuki would sit in the hallway pretending he wasn’t listening. now he copies your playlists and pretends they’re his.

you’ve got a soft spot for him, even if you act like you don’t. you’re always one step behind him at competitions, watching from the shadows just in case he needs you. he knows. he just never says it.

he still calls you ❝sis❞ when no one’s around.

katsuki doesn’t know how to say he appreciates you, so he shows it in little ways. like handing you cold drinks after training or silently plugging in your dead phone when you’re passed out on the couch.

he actually listens when you give him advice. he pretends not to. pretends to roll his eyes and scoff. but he hears everything you say. especially when it comes to hero strategy or emotional regulation (which he’ll never admit he struggles with)

you’re one of the only people who can tell when he’s having a bad day before he explodes about it. and you don’t ask questions. you just sit beside him, play his favorite songs, and wait. he always ends up muttering something like ❝…today was bullshit.❞ and that’s your cue to listen.

on your 19th birthday, katsuki didn’t say anything until after everyone left. you were sitting on the balcony alone when he joined you, dropped a wrapped box in your lap, and muttered,

❝you’re annoying. but… you’re the reason i’m where i’m at. don’t get sappy or anything. just open it.❞

it was a new set of gauntlets, upgraded and built to compress mist in smaller chambers. custom-made. you cried. safe to say he cried a little too.

you and katsuki have always been close — late-night talks on the common room couch, walking back from training together, him grabbing an extra drink from the vending machine and tossing it to you without saying anything. you’re not dating, but people assume you are.

he always acts annoyed when people bring it up. always brushes it off. always turns red.

but you’ve never seen him truly mad about it… until today.

you were sitting down next to katsuki while eating your lunch when some random boy came up to you.

“h-hey, i’ve been watching you for a while now, a-and i just wanted to ask if i could maybe get your number?”

you froze. it wasn’t like this had never happened before, but not in front of him. everyone was aware of the… kinda relationship you and katsuki had, so why would they do that in front of him?

you were about to respond when you heard katsuki shouting, “back off. she’s not interested.” he pushed the other guy, who ran away afterward.

at the moment, it was all very confusing. why did he get so angry? i mean, it’s not like you two were in a relationship—you had the right to talk to other people. but you didn’t want to make another scene, so you decided to talk to him later, privately.

it was night now, and you were in his dorm.

you finally ask him, “earlier, with that guy… why did you do that?”

he froze. “tch, i don’t like people messing with you, that’s all.”

but you didn’t let it go. you pushed back a little. “why does it matter to you who flirts with me?”

he then said, as quiet as a whisper “because i like you, dumbass.”

you were shocked, but you smiled.

there was a pause. he looked away, ran a hand through his hair, muttering something under his breath. “…i didn’t mean to say it like that.”

“yeah, but you like that people think we’re together, don’t you?”

and for once, bakugo didn’t insult you or deny it. he just grumbled, “shut up,” and walked off with ears red—but slower this time, like he was waiting for you to catch up.

“don’t worry, silly. i like you too.”

for the past hour, while you were busy typing in your laptop, Satoru happened to simply drop on the chair in front of you, rambling your ears out even though he knew you were not listening, “you’re gorgeous, do you have a boyfriend?” he asks, no response.

“oh, hard public, hm? that’s okay, you are still gorgeous, can I give you my number?” no response. yet his stupid little smirk stays present.

“your boyfriend is not worth your time, baby, you should date me instead”

“what are you drinking? want a refill?”

“did it hurt when you fell from—”

your boyfriend held off on letting you meet his parents for awhile now. for reasons you don’t actually know, you thought maybe they were really protective or perhaps even strict with who he dates but turns out it was anything but that.

“pssst— it’s okay you can tell me.” she whispered, slightly nudging you.

“I’m right here hag.” bakugou would deadpan at his mother, barely able to keep it together.

sitting on the couch in between the two practical clones when you first saw them together. you let out a nervous laugh before turning to your most likely and probably definitely future mother in law.

“no mrs. bakugou he didn’t kidnap me, pay me or hypnotize me to be his girlfriend.”

her eyes wavered as she looked at you skeptically before turning her head to the side.

“if you say so— well then come here dear you can see all his baby pictures. just a fair warning this means you have to marry him.”

“mitsuki.”

“MOM!”

“oh what— we all know it!!” she yelled, ready to defend her soon to be very factual statement in the future.

“don’t scare her off.” his dad mumbled in gentle admonition, patting her back to ease her from the initial outburst.

“please masaru if she was even the slightest bit afraid she would have already come running at the sight of katsuki.”

at that his father held a look agreeing that she wasn’t wrong. suddenly she turned to you once more holding your hands this time.

“he’s loud and makes ugly, borderline scary faces at times but he means well sweetheart.”

“oh I know mrs bakugou but—“

“call me mitsuki dear!”

“ah! yes mrs mitsuki err mitsuki— ehm I was saying on the contrary he’s very handsome and really gentle.”

from the raised brow and slight frown it was clear from her expression that she was unconvinced.

“mmmm— well I get his majestic appearance, after all he got most of his features from me.”

you could see masaru nod along.

“but gentle? hmmm, probably from you masaru.” she nodded, slapping his knee.

“though are you certain? I’ve never seen him be quiet ever in his life, it was always boom boom boom.”

glancing at your boyfriend he seemed to have reached his patience, looking like he was ready to go toe to toe like he always does before you interrupted.

“yes he’s very sweet and thoughtful. I love him for any and every part of him, especially his unwavering passion.”

a pregnant pause took place before—

“actually katsuki you need our permission this time if you do ask her now.”

“WHAT!!!”

“well she’s basically my daughter now!! how kind and patient she must be to put up with you.”

“I’m literally your son.”

smiling even wider with pride and relief she uttered words he guessed was nice to hear.

“and as your parents we’re glad to see you find someone as great as you.”

you could hear his heartbeat against your chest, his strong hands wrapped securely around your waist with brent faiyaz playing from his speakers. these were the moments that you truly cherished. when bakugou was soft, calm and sweet. he reserved those feelings for you, and you only.

"i wonder what your friends would think if they saw the great explosion murder lord god dynamight becoming putty in my hands." you teased, nuzzling your nose into his chest as he grumbled a laugh.

"first, it's great murder god dynamight; get it right. second, they know better than to interrupt me at night." he said.

snorting at his correction, you sat up, swinging your legs on either side of his thighs. "you're such a fucking nerd." you giggled pressing a light kiss on his lips.

he scoffed at your accusation, pushing you off of him and onto his side as he reached for the snacks on his dresser. he opened the packet while grumbling about how 'you shouldn't group him with fuckass deku' and the fact that he was the 'strongest boy in our year, hell, maybe even UA.'

cocky bastard.

"okay mr huge ego, get back here; you're my personal heating pad." you whined, pawing at his back.

"clingy ass," he grumbled but reluctantly fell into your embrace, sighing as your limbs wrapped around his.

a few minutes of eating snacks and watching a shitty movie made the air peaceful. of course katsuki cut in time to time to comment on the shitty acting and ugly main characters, but you love him nonetheless.

just as your eyes began to shut and katsuki's breathing slowed, the door burst wide open, the faces of your friends filling the doorway. almost immediately katsuki grabbed his pillow and threw it at his friends, screaming at them to get out.

"GET THE FUCK OUT OF MY ROOM!" his voice boomed, cheeks slightly tinted and eyes full of rage.

"oh, hell no!" mina yelled back. her phone was already in hand, so it didn't take her long to get a picture.

jirou giggled, leaning over denki's shoulder. the two of them had recently gotten together – not publicly, though – but they weren't very slick.

"ooo lala, is kachan of the bakugous seriously being a little cuddle bug right now." denki mocked, missing the flying remote that flew his direction.

kirishima, ever the peacemaker, quickly put himself in front of the group, hardening his skin to make sure the objects your boyfriend threw weren't actually hurting anyone.

"come on guys, you're interrupting our night!" you exclaimed, kind of upset that your once peaceful night had turned into a throw fest.

mina only laughed harder, clearly recording for her snapchat story that she loves so dearly. however, katsuki was fuming. he already grabbed his hoddie, dragging it over his had and marching towards the door. "i'm gonna fucking kill-"

"katsuki if you leave them alone, i'll give you infinite kisses for a month!" that caused the entire room to still.

pin.

drop.

silence.

and katsuki?

he was calculating the outcomes.

and slowly, very slowly, he took a step back. and then another. he just kept going until he was back on the bed.

the rest of the group?

dying of laughter. sero even called him a simp, playfully taping him to the bed before he ran away.

Bakugou knew he had type, strong, independent, quiet and tactical girls who didn’t giggle at everything or stop mid-conversation to take selfies with the “good lighting.”

And then he met you.

You’d shown up to the agency internship dressed in a painfully pink combat outfit—trimmed with rhinestones or maybe even glitter no less—blowing a bubble with your gum and twirling your hair like you were in a music video. You waved at him smiling wide with a hand on your hip. “Hiya, Dynamight! Omg, I love your arms. You must work out, like, all the time.”

He blinked. Twice. “…Tch. What the hell?”

He immediately labeled you as a glitter bomb and went back to training, assuming you wouldn’t last a week.

But you did.

Scratch that, you thrived. Sure, you asked “dumb” questions, had a voice like honeyed candy, and squealed every time you chipped a nail, but you were observant, quick on your feet, and surprisingly intuitive. You’d dodge an attack mid-spin just to fix your hair and still land a knockout. And the worst part?

Bakugou started to like it

⸻

Weeks passed and you stayed the same: bubbly, touchy, a little ditzy but sharp where it counted. You’d waltz into the agency in tiny skirts and matching gloss, sipping pink smoothies and telling him, “Mr Dynamite, babe, you should try a strawberry one sometime! It’ll help balance your rage.” He grunted and told you to shut up.

But the first time he tried one, he didn’t tell a soul. You caught him sipping it in the break room, and he scowled as you squealed, “You like it!! See? You have a sweet side.” He never lived that down.

He started falling quick, started getting jealous easier when you’d call Kaminari “cutie,” wink at Sero, compliment Shoto’s eyes and Bakugou is on edge the entire time. He gets snappier. Glares more. Throws side-eye every time someone makes you laugh.

⸻

The real turning point came during a joint mission. Some low-tier villain made the mistake of calling you “useless” and “just some dumb barbie.” You’d smiled at them, all teeth and lip gloss. “Aww, that’s so cute! You think that.” And then you dropped them. Fast. Hard. Efficient.

Bakugou had watched the whole thing from a rooftop, arms crossed, heart pounding way too hard for comfort.

When you looked up at him and blew him a kiss, he realized with a grunt of horror: He was so screwed.

⸻

He didn’t officially ask you out — of course not. That wasn’t his style. Instead, he shoved a bouquet of red flowers at you one day after training and barked, “You’re mine now, got it?” You blinked at the flowers. Then at him. “Aww… Like officially?”

Bakugou huffed and grumbled a small “Yeah. Officially.”

You gasped, throwing your arms around him. “This is, like, the cutest way anyone’s ever asked me out me!!”

“I didn’t asked yo—ugh, whatever.”

You wore the biggest, sparkliest heart earrings the next day, bragging to everyone who would listen:

⋆. 𐙚 ˚ || katsuki bakugo x reader, pure fluff

You never really meant for anyone to know.

Your crush on Katsuki Bakugo was supposed to stay between you and the four walls of your dorm room — whispered into pillows, tucked beneath journal pages, folded neatly between the lines of every stolen glance and shy smile. It wasn’t loud, not the kind that shouted over rooftops or demanded attention. It was quiet.

But secrets, it turns out, are fragile things in Class 1-A.

It started with a glance that lasted a little too long during training. Then came the way your ears turned red when Bakugo brushed past you in the hallway, and how your voice always went just a touch softer when you addressed him. The others noticed. Of course they did. You were subtle — but not subtle enough.

Soon it became a game.

“Heyyy, did you see Bakugo this morning? He looked extra... explosive.”

“Careful girl, your heart might combust if he yells again.”

“You should confess! Imagine the drama!”

It was relentless — harmless, mostly, but constant. Kaminari and Mina led the charge. Kirishima just chuckled and offered supportive thumbs-ups. Midoriya once offered to help you write a confession letter until you nearly passed out from embarrassment. Even Todoroki, bless him, once asked you plainly at lunch if you were in love with Bakugo. (You choked on your rice.)

But the worst part?

Bakugo didn’t seem to notice.

He didn’t tease you like the others. Didn’t even act like he cared. He treated you the same way he treated everyone else — with that sharp-edged scowl, that bark of a voice, that signature gruffness. It stung more than it should’ve. The quiet pining stretched into months, and somewhere along the way… it began to fray.

You started noticing the ways he didn’t notice you.

You started letting go.

And one day, during a lull in the common room — the others mid-conversation, teasing you yet again — Mina nudged you with a knowing grin and said, “So, how long before you finally ask Bakugo out?”

You looked up, sipped your tea, and shrugged.

“I don’t like him anymore.”

Silence.

You could’ve heard a pin drop. Even the background music from Kaminari’s phone paused like it, too, couldn’t believe what you’d said.

Mina blinked. “Wait. What?”

“I said I don’t like him anymore,” you repeated calmly, like it hadn’t taken you weeks to untangle him from the threads of your heart. “I got over it.”

Someone gasped. Sero dropped his chips. Kirishima straightened in his seat like he’d just witnessed a crime. Even Todoroki raised an eyebrow.

And then — then — you looked up to find Bakugo standing in the doorway.

He hadn’t said anything. You didn’t even know how long he’d been there.

His expression was unreadable, but his eyes — sharp, red, too loud for someone who hadn’t said a word — were fixed on you like you’d just pulled the ground out from under him.

You didn’t flinch. Just smiled, soft and resigned, and turned back to your tea.

He walked away after a beat. Said nothing. Left the room with too much quiet behind him.

But later that night, you found a note slipped beneath your door. No name. No signature.

Just his handwriting.

'When did it stop?'

And beneath that, scribbled faintly like he’d almost erased it:

⋆. 𐙚 ˚ || katsuki bakugo x reader, pure fluff

It started when you were five.

You scraped your knee, cried like the world was ending, and Katsuki—mud on his elbows, twigs in his hair—offered you his half-melted popsicle and said, “There. I fixed it. How about a kiss?”

You screamed “gross!” and kicked him in the shin.

He chased you around the slide, laughing the whole way, like he hadn’t just offered his heart in the form of a joke too big for either of you to understand yet.

But that didn’t stop him.

Not when he carried your backpack in second grade just because he wanted it.

Not when he punched a kid in fourth for calling you names.

Not when he stood outside your house in the rain after your dog died, holding your umbrella like it was a sword and he was on some kind of silent vigil.

Every time, without fail: “How about a kiss?”

The line became a habit, then a reflex. You'd poke fun back, roll your eyes, tell him “not in a million years, Katsuki,”

And he’d snort and brush it off like he didn’t care. But he kept saying it. Kept hoping, maybe this time…

It was a joke.

It was only a joke.

Wasn’t it?

Teenage Katsuki is taller, sharper in the jaw, deeper in the voice—but somehow, just as infuriating. He still throws his arm in front of you when debris rains down from a villain’s blow. Still finds your wrist when chaos splits the class apart and hauls you behind him like you’re glass. He doesn't even look back, just mutters, "Tch. You good?"

And when you blink at him, breath caught, words gone…

There it is again—his default line, tossed over a bleeding lip like a lifeline and a death wish all at once:

“How about a kiss?”

Like he doesn’t mean it.

Like it’s always been funny.

You wanted to slap him and cry at the same time. Your hands shook on his shoulders. “You idiot,” you whispered, brushing ash off his cheeks. “You absolute idiot.”

He laughed, short and low and a little too bitter.

But it’s not funny when his palm finds your shoulder longer than it needs to.

It’s not funny when his laugh catches, when he glances away too fast, like he’s afraid he said too much.

And it's definitely not funny when he lies alone on the rooftop some nights, playing every moment back in his head, wondering what would happen if you ever said yes.

Because the truth is—he started asking for kisses when he didn’t know what kisses meant.

But now he does. And it terrifies him.

Because what if you lean in one day and actually give him one?

What if he finally tastes the thing he’s been craving since he was a boy with a busted knee and too much pride?

What if it ruins everything?

So he keeps asking, even when his voice breaks, even when his heart feels like it’s cracking behind his ribs.

Because it’s the only way he gets to pretend.

The only way he gets to say I love you without actually saying it.

Just five words, tossed like a coin into the well of every shared moment:

"How about a kiss, dumbass?"

And if you ever say yes,

God help him.

⸝⸝ ＃┆ 𝐅𝐈𝐑𝐒𝐓! ⎯ 𝐁𝐀𝐊𝐔𝐆𝐎 𝐊𝐀𝐓𝐒𝐔𝐊𝐈

summary: It’s your first time with Bakugou Katsuki—nervous, soft, and full of emotion. In the quiet of his dorm, he sinks into you for the first time, overwhelmed by how deeply he feels everything.

warnings: virgin!Bakugou, virgin!reader, first time sex, soft boy!Bakugou, emotional intimacy, overstimulation, crying a little, lots of talking during, gentle thrusts, praise, mutual love and consent, fluff with heated tension, Katsuki moaning, hand-holding (emotionally and literally), vulnerable!Bakugou, slight language.

wc: 0.4k words.

request: -🦈 !! „bakugou and his pretty little girlfriend losing their virginities to each other… yes…“