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Get Them to Behave by 9r7g5h, The 9 One (9r7g5h) for collisiondiscourse
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
13 Jan 2025
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Summary
“Are you three serious right now?” The three Kacchans didn’t cower under Izuku’s glare, per say, but they did at least have the good sense to look ashamed. One even dipped down, carefully picking up the pieces of the figurine and placing them back on the shelf. “I’m getting tired of all the arguing! Can’t you find one thing you all agree on and focus on that instead?”
Or
Izuku finds out how to get the Kacchans to behave.
Bookmarked by cassiespersonalhell
23 Jul 2026
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warm me up (in your embrace) by bundie for 9r7g5h
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
10 Jan 2025
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Summary
Class 3A get to experience their first proper snow day since the war. But Izuku doesn't do well with the cold; everything hurts and he just can't get warm no matter what he does. So he ends up in front of Kacchan's door in the middle of the night in search of cuddles.
He gets more than he bargained for.
Bookmarked by cassiespersonalhell
23 Jul 2026
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See The Way (You Hold Yourself) by bundie
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
15 Feb 2023
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Summary
This is fine, it’ll be fine! He’ll just go up to Kacchan’s bedroom–which he hasn’t stepped foot in since he was five–and tell him dinner is ready. They don’t even have to interact face to face. He can just go up, knock, and run away. Yup, totally cool. Just fine.
Except that wasn’t at all what happened.
After shakily making his way up the stairs (not from fear, but from pushing around appliances on Dagoba Beach all month, really!) Izuku stood frozen outside of Kacchan’s room. (Again, not from fear! He wasn’t scared!) There was a muffled sound coming out from behind the door, like it was trying to get smothered but couldn’t be held back. It was a sound Izuku was intimately familiar with. He was, after all, Aldera’s resident crybaby.
Izuku and Kacchan talk about what happened the day of the Sludge Villain Incident. Then they do a bit of not talking.
- Language:
- English
- Words:
- 2,856
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 17
- Kudos:
- 930
- Bookmarks:
- 107
- Hits:
- 6,677
Bookmarked by cassiespersonalhell
23 Jul 2026
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and it yells in honest whispers by comradekiwi
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
11 Oct 2022
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Summary
“Thank you, Kacchan,” Izuku said quietly, voice soft from suppressed pain. Katsuki grunted as he took Izuku’s hands in his.
Katsuki typically faced off villains he hated with open palms. This wasn’t all that different. Just quieter.
or,
Izuku and Katsuki have a routine, unassuming and unspoken and necessary, for them both.
Series
- Part 3 of bkdk hands & ands & and & and
Bookmarked by cassiespersonalhell
23 Jul 2026
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Every Day, Again and Again by bundie
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
13 Feb 2023
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Summary
Stupid fucking quirk accidents. One minute, Great Explosion Murder God Dynamight was fighting some C-List villain side by side with his hero partner Deku, and the next, he was blasted through some swirling mass of violet light. The last thing he heard was the broken call of “Kacch–!” before he was slamming face first into a brick wall.
Where the fuck was he?
Pro Hero Katsuki goes back in time.
- Language:
- English
- Words:
- 1,014
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 21
- Kudos:
- 2,004
- Bookmarks:
- 198
- Hits:
- 13,931
Bookmarked by cassiespersonalhell
23 Jul 2026
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Left You A Message by CactiCorgi
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
19 Oct 2025
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Summary
Izuku adores his hero suit, and there's nothing he'd change about it.
Especially not Katsuki's voice commands embedded inside.
But what happens when he discovers a final farewell message from Katsuki hidden within?
OR
Basically what if Katsuki's voice was used like Jarvis in Tony Stark's suit, but with some... personal messages attached.Bookmarked by cassiespersonalhell
23 Jul 2026
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Great Explosion Murder God... Deku? by CactiCorgi
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
23 Jul 2026
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Summary
"Katsuki looked up to see an all too familiar face hovering over him, eyes wide with worry. It was just Izuku. There was something odd, however.
He wasn't wearing his designated hero suit. He was clad in bits and pieces of Katsuki's hero costume. A large, black and gray gauntlet sat on his left arm. The signature orange belt with grenades was wrapped around his waist, slightly strained because Katsuki was smaller than Izuku in that particular area. The boots, however, were too big it seemed, and the sharp knee pads had clearly been hastily applied.
Izuku was beaten up, obviously having just come from a battle. His chest rose and fell in labored breaths, his hair was messy, and sweat rolled down his forehead. Katsuki had no idea what on earth had prompted him to cobble together this costume instead of wearing his multi-million dollar suit."
A.K.A.
Izuku in Katsuki's hero gear. Shenanigans ensue.
Bookmarked by cassiespersonalhell
23 Jul 2026
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Observance by nuclearsemiotics
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
05 Jul 2026
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Summary
Izuku knows perfectly well what it means when a stranger's eye lingers on the line of his shoulders, or traces the bob of his throat as he sips a drink at the bar.
He’s just… not always sure what to do about it.
So when he catches Kacchan staring at his arms in the agency gym one morning, Izuku finds himself at a bit of a loss.
Series
- Part 1 of Bombshell
Bookmarked by cassiespersonalhell
23 Jul 2026
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In the Aftermath by Apap55
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
18 Jul 2026
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Summary
So, well. Maybe he’s really not that confused about where things had gone wrong because even if the rest of the night had been absolutely perfect, which, as he recounts, he realizes that maybe it hand’t, that last absolutely imbecile performance would have brought it all to a screeching halt anyway.
Or
Izuku watches his relationship burst into flames before his very eyes and finds that he's the one holding the lighter. He's not as upset as he probably should be.
Note: This is a post-canon fic and while it's obviously going to be end-game bakudeku i'm not trying to throw any shade or hate at Uraraka, sweet cinnamon role that she is.
Edit: if someone could tell me how to italicize that would be awesome *cries*
Bookmarked by cassiespersonalhell
23 Jul 2026
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Everything Falls Apart by edema_ruh
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
27 Mar 2026
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Summary
“A quirk.”
“Mm-hmm.”
“He was hit with a quirk that makes him – do whatever people tell him to do?”
“Almost. The command must be phrased as a suggestion. Orders or requests don’t work.”Alternatively: Katsuki gets hit with a suggestion quirk and almost immediately gets in a fight with a first year student who proposes something similar to him taking a swan dive off the roof of the building. A lot of trouble ensues, including difficult talks about his past with his boyfriend, Izuku.
Bookmarked by cassiespersonalhell
22 Jul 2026
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Avalanche by edema_ruh
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
05 Sep 2024
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Summary
“What the hell is going on, man?” Kirishima approaches Katsuki with concern.
Katsuki blurts out: “Got hit by a quirk. Kid clung to me on the street, asked for a picture, I felt some weird shit like a shiver, but I wanted Izuku to see that I can be nice to little kids too, so I sucked it up and didn’t mention anything. But now I keep blurting out everything I think without a filter.”Alternatively: Katsuki gets accidentally hit by a truth-serum quirk right before a mission with Izuku, Kirishima, and Jirou. As if verbalizing every single thought in his head is not enough trouble, there’s also this: he’s in love with Izuku, and won’t be able to keep hiding it for long.
- Language:
- English
- Words:
- 16,058
- Chapters:
- 1/1
- Comments:
- 139
- Kudos:
- 5,466
- Bookmarks:
- 1,130
- Hits:
- 54,746
Bookmarked by cassiespersonalhell
22 Jul 2026
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Find a Hero by EnduringParadox
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
13 Jan 2024
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Summary
"Mr. Dynamight, sir," says a small, trembling voice.
He looks down. There at knee-height, is Deku. Not his Deku—not Izuku—but a little kid cosplaying as Deku the Hero. The costume has been lovingly and carefully handmade by one of his parents. He has a little Deku-brand green backpack that's studded with pins from the artists' booths. He's got red sneakers on—fuck, the sneakers, that's so goddamned cute. The kid's eyes are huge and full of tears, and he's doing that thing where he's desperately trying not to cry but can't hide the hitch in his voice or the quivering of his chin.
Hell, he's tugging on Katsuki's scarred heart.
Katsuki squats, so they're eye to teary eye. "What's up, Deku?" he asks. That earns him a small smile.
"I lost my mom," says the boy. He rubs at his face with his hand. "I don't know where she is. But—I'm supposed to find a hero to help me. And I found you!" He brightens. "Will you help me find my mom, Mr. Dynamight?"
Shit, how could he ever say no to that? "Sure thing, kid. Here, take my hand."
--
Katsuki helps a lost kid cosplaying as Deku at a Hero Convention.
Bookmarked by cassiespersonalhell
22 Jul 2026
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Tomorrow's Sound Bite by EnduringParadox
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
26 Dec 2023
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Summary
"There's no such thing as always, Deku. If Dynamight is still hearty and hale, then he's going. I think the public will get a kick out of seeing him hold his own against Hirano and Merry. Stop pouting."
"I'm not pouting," Izuku said with a pout. "I just—Kacchan—"
"Dynamight is an adult and a pro-hero. He is more than capable of answering questions about himself for an hour. Get some rest. I want you in tip-top condition for your talk at the museum opening next week. Now, please give the phone back to Dynamight."
Izuku mumbled a goodbye and mouthed Sorry as he handed the phone to Kacchan.
Kacchan groaned. "Yeah, I'll do the interview, goddamn. But if they want me to talk for an hour, then they'll get me for an hour, got it?"
An hour of pure, unfiltered Kacchan.
Izuku was sure that they didn't know what they were getting into.
---
Izuku and Kacchan always do their interviews together, but with Izuku home sick, Kacchan has to weather it alone. Izuku is worried, especially when a rude guest starts needling Kacchan about their relationship.
Bookmarked by cassiespersonalhell
22 Jul 2026
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Before the Petals Wilted by zuzu418
Fandoms: mha, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
16 Jul 2026
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Summary
Midoriya Izuku has mastered One For All.
He can handle training, classes, and the expectations of becoming a hero.
The only thing he can't overcome is the flowers growing in his lungs for the person who will never love him back.
Bookmarked by cassiespersonalhell
22 Jul 2026
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Other Letters of the Alphabet by paceunknown
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
15 Jun 2026
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Summary
A flash flood descended upon the rumor mill the moment a clear image of the Symbol of Hope's gloveless left hand was placed next to one of the Symbol of Victory's chest online. When Katsuki shouted, "So fucking what we got married?! Lay off!" at a journalist who'd taken to cornering them immediately post-villain apprehension, a typhoon carried it clean off the hub.
Izuku never blamed people for thinking they were… secret childhood sweethearts, or whatever, seeing as they moved in together immediately after getting their diplomas and turned up hitched six months after that. Were Izuku on the other side of the gossip, he's sure he'd arrive at the same, logical conclusion—but the conclusion he prefers is the one that's true and, by circumstance, is the one that's just for Katsuki and him.
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Katsuki and Izuku tie the knot soon after graduating from UA. It's strictly for the legal privileges that come with marriage, but the social game demands to be played, too.
Bookmarked by cassiespersonalhell
21 Jul 2026
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Hometown Heroes by I_Feel_My_Organs_Failing
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
07 Jul 2026
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Summary
What if, on Nabu Island, when Deku passed One For All to Kacchan, something no one expected — and no one knew how to handle — happened? What if the Quirk itself split in two, leaving both boys carrying One For All and connecting them, tethered by some invisible string.
——— ⋆⋅☆⋅⋆ ———
“Kacchan, hey, can you hear me?"
Katsuki’s eyes snapped open.
For a moment, all he could do was stare at the gray sky above him, his thoughts sluggish and unfocused. He exhaled sharply through his nose and pushed himself upright with a grunt, soggy grass bending beneath his palms. His eyes widened as they landed immediately on Deku, who was sitting right in front of him.
Freckled cheeks rosy from the cold. Curly hair tousled from the wind. A flicker of something dangerously close to intrusive curiosity crossed his stupid face.
"What?" Katsuki barked.
——— ⋆⋅☆⋅⋆ ———
After the war, the world is left to recover, and so are they. Izuku and Katsuki have to face the aftermath of everything they’ve lost, everything they’ve survived, and the bond they’ve spent years avoiding. Between hero work, recovery, and their last two years at U.A., they’re learning how to heal. Even if it is a little messy.
Bookmarked by cassiespersonalhell
21 Jul 2026
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if you think i'm pretty (lay your hands on me) by BeeeLikesBirds
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
16 Jul 2026
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Summary
"What, you in here jerkin' off or something?"
He means it as a joke. It's so absurd that it couldn't be anything other than a joke. And he knew exactly how Izuku would respond. He would roll his eyes and groan and shove him and blush and say, Kacchan, you can't just say things like that!
But that's not what happens. Instead, Izuku's whole face goes paper white before turning bright red again so suddenly that Katsuki's almost afraid he's going to pass out on him. Izuku is silent.
Holy shit.
Katsuki does something he can't take back.
Bookmarked by cassiespersonalhell
21 Jul 2026
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Do you hear it too? by LavishLulu
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
17 Jul 2026
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Summary
Izuku has trouble sleeping after the war—being plagued by thoughts and people he cant seem to shake. But one night, he discovers he's not alone.
Bookmarked by cassiespersonalhell
21 Jul 2026
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date me or die by wolfpad for renegadecherry
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
07 May 2026
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Summary
“You better watch your back, Iz-u-ku.”
Briefly—too quick for Izuku to process—Katsuki’s gaze drops down before it flicks back up again, boring into wide, green eyes of wonder.
“Get some sleep tonight because starting tomorrow, I’m going to date you so hard, you’re going to wish it was just a game.”
xx
Or, in true Bakugou Katsuki fashion, Katsuki takes what was supposed to be a harmless hypothetical and turns it into a challenge, intent on proving Izuku wrong. So I guess this means they’re…boyfriends…now?
- Language:
- English
- Words:
- 23,473
- Chapters:
- 1/1
- Collections:
- 2
- Comments:
- 69
- Kudos:
- 535
- Bookmarks:
- 145
- Hits:
- 5,429
Bookmarked by cassiespersonalhell
21 Jul 2026
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A Truth So Loud You Can't Ignore by Minjimochi
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
23 Aug 2024
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Summary
When the most emotionally constipated hero in Japan - Ground Zero - is hit by a quirk on patrol, he can not only suddenly understand the emotions of others for the first time in his life, he can't hide his own feelings from anyone, including himself.
When truths keep slipping from his lips without his permission, what will happen when Katsuki is confronted with the one man even he had already admitted to himself he has certain... feelings toward?
- Language:
- English
- Words:
- 23,366
- Chapters:
- 9/9
- Collections:
- 12
- Comments:
- 156
- Kudos:
- 6,699
- Bookmarks:
- 1,105
- Hits:
- 127,360
Bookmarked by cassiespersonalhell
21 Jul 2026