Undertheblu
Fandoms
Recent works
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Love You Wrong by Undertheblu
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
21 Mar 2024
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Summary
Seven years after being rescued from his life with the League of Villains, Katsuki is trying his best to live a normal life. Unfortunately, normal is not an option where Dabi is concerned.
Summaries…am I right?
Part 2 of A Little Salt for that Wound
Series
- Part 2 of Submission
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Just Add Some Friction by Undertheblu
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
24 Dec 2023
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Summary
Between hero training, Katsuki’s trying to battle his own personal demons. How’s he supposed to become a hero if he can’t even save himself? They may be warriors in training, but class 1-A is still a bunch of teenagers. How do you help someone when you can’t see what’s hurting them?
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Who Would’ve Thought by Undertheblu
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
08 Nov 2022
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Summary
Everyone had always been certain that Katsuki Bakugou would be an Alpha. There had never been any doubt in ANYONE’S mind. And yet…Katsuki wakes up to his first ever heat. He has to learn to accept some hard truths about himself and learn how to ask for help.
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Happy Birthday, Katsuki! by Undertheblu
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
30 Apr 2022
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Summary
I meant to write this for Bakugou’s birthday, but it wasn’t finished in time.
So here it is for MY birthday!Sero had tried very hard to keep Bakugou’s secret. He understood how private the explosive teen was and what a big deal it was that he was permitted to have any information about him. So when Shinsou walked through the roof door, the same rooftop Bakugou and Sero were smoking on, both teens froze.
OR
Bakugou gets dick for his birthday.
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Late Night Fun by Undertheblu
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
13 Apr 2022
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Summary
Katsuki pays Eijirou a late night visit.
But they aren’t as secluded as they think…
Hard to keep a relationship secret when the Bakusquad is involved!
Recent series
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- Words:
- 52,795
- Works:
- 2
- Bookmarks:
- 34
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Young Volcanos by Undertheblu
Fandom Captain America (Movies), Iron Man (Movies), The Avengers (Marvel Movies)
13 Nov 2014
Summary
Trying to survive a relationship with Tony Stark.
College Au- Words:
- 2,699
- Works:
- 1
- Bookmarks:
- 10
Recent bookmarks
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Life Support Malfunction by CanonicalllyChaos
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
03 Oct 2025
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Summary
Katsuki thought running diagnostics in Electrical was his worst problem. He was wrong.
What began as a routine shift aboard the Skeld quickly unravels into a nightmare. Tasks go unfinished, systems are sabotaged, and crew members start dying under mysterious circumstances. Trapped in a web of paranoia, Katsuki struggles to separate ally from impostor as tensions spiral out of control. Amid the chaos, Shinsou and Dabi—enigmatic figures with unclear motives—draw close, offering an unsettling mixture of comfort and control that both unnerves and fascinates him.
As the line between trust and manipulation blurs, Katsuki finds himself at the mercy of experiences that overwhelm his senses and unravel his mind. Amid fear, confusion, and isolation, he must navigate a world where no one is safe, and nothing is as it seems—not even his own body.
A tense, immersive tale of survival and the dangerous pull of those who know exactly how to exploit your weakness.
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KINKTOBER 2025 DAY 3: Threesome, Nipple Clamps, Alien AbductionSeries
- Part 3 of CanonicalllyChaos Kinktober 2025
- Language:
- English
- Words:
- 15,397
- Chapters:
- 2/2
- Collections:
- 1
- Comments:
- 3
- Kudos:
- 66
- Bookmarks:
- 14
- Hits:
- 1,460
Bookmarked by Undertheblu
27 Jan 2026
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Can you hear me now? by Milky_boom11
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
02 Jan 2026
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Summary
Bakugou Katsuki has a secret. A big one.
The kind of secret that could blow up everything he’s worked for, if anyone ever found out. So far, he’s managed to keep it hidden.
Nobody knows. Not his classmates. Not his teachers. Not even that damn nerd who can’t keep his nose out of other people’s business.
Because the truth is, Bakugou is deaf. And has been for a while now.Everything was under control-until a villain’s quirk forces him to switch bodies with Todoroki for twenty-four hours. And suddenly, the truth is out. Aizawa is pissed. His classmates are reeling.
Now Bakugou has to deal with what he’s been running from all along: the fear of being seen as weak.
Bookmarked by Undertheblu
24 Jan 2026
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Run on Gasoline by ImFineJunkie
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
27 Dec 2025
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Summary
Katsuki thought he was in love before.
Little did he know what actual love felt like.
He finds that love in one of his friends, just not the one he originally thought.Follow Katsuki as he struggles through school, dealing with mental illness, first real love, and normal teenage bullshit.
Bookmarked by Undertheblu
02 Jan 2026
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I'm Scared to Look Down, There's Blood on the Floor by Bokuroo_trash
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
26 Dec 2025
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Summary
“You already did your fucking research didn’t you? That’s why you let go,” Katsuki grit his teeth where he stood, now a good few feet away from the redhead.
Eijirou still hadn’t moved from his spot in the middle of the rink. Almost like he was too shell shocked by what just happened.
“I know you’re a professional skater. I know you’re headed to the Olympics—“
“Was,” Katsuki grimaced as he heard his own voice crack. “I was. Not anymore, so fuck you.”
or
After meeting a beautiful man who was terrified of the ice, Eijirou is determined to get him on it and convince him he can skate. What he doesn’t know is that the man he’s helping happens to be the professional ice skater Katsuki Bakugou. A world renowned athlete who had almost made it to the Olympics had it not been for a career ending injury.
Bookmarked by Undertheblu
17 Dec 2025
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a knife's edge by kae00
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
14 Jan 2024
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Summary
There must be something wrong with him.
A healthy Todoroki wouldn’t just jump Katsuki’s bones like this. A healthy Todoroki wouldn’t growl again, lips parting to reveal a set of long canines. A healthy Todoroki wouldn’t be sporting a boner the size of his forearm.
Well, shit.
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or, Todoroki gets hit by a rut-based quirk and only Katsuki can help him out. He’s not happy about it, but he’ll do it. On one condition:
Aizawa has to be there.
Bookmarked by Undertheblu
10 Oct 2025