1 - 20 of 172 Works in Class 3-E as Family (Assassination Classroom)
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Assassination Classroom: Twisted Timeline - Season One by The_New_Archivist
Fandoms: Assassination Classroom
04 Dec 2025
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Summary
Flung through space and time, Hakai and Omoriyari Yukimura must try and gather their bearings. Thrust into the past, they cannot understand, with the world placed at the risk of total annihilation.
Series
- Part 4 of Heroes Across The Cosmoverse Saga
- Part 1 of Assassination Classroom: Twisted Timeline
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What It Means To Take A Life by BrocklieBrooke
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Assassination Classroom
01 Dec 2025
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Summary
Midoriya Izuku has to move cities with his mother for her new job and consequently had to change schools. His new school is a prestigious one, Kunugigaoka Junior High but after a small misunderstanding he’s thrown right into Class 3-E!
Yukimura-sensei has disappeared and nobody knows what is happening until the government bring in a year-long class project for them to complete only a few days after the moon blows up.
Will Izuku still be able to become the hero he’s always dreamed of being, or will his new life as an assassin in 3-E ruin that for him?
OR - Izuku is wrongfully put into Class 3-E for his third year and has to become an assassin to kill one of the nicest teachers he’s ever known, all while hoping to achieve his dream of a hero.
ASSASSINATION CLASSROOM X MY HERO ACADEMIA CROSSOVER
Series
- Part 1 of The What It Means.. Universe
- Part 4 of BB’s BNHA Fics
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Disconnected Start by purplefox532
Fandoms: Assassination Classroom, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
01 Dec 2025
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Summary
After class 3E succeeded in their mission they only had a month to relax before the next crisis arose. This one ended in them losing everything they knew but gaining something new. How will these trained assassins survive in this new superhero society?
This story is inspired by the princessesandangels story Bye Bye Yesterday.
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Lock On & Go Beyond by princessesandangels for namikkou
Fandoms: Assassination Classroom, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
19 Nov 2025
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Summary
What use was Nagisa in a situation like this? What was one little snake – out of place, out of time and so far out of his depth he’d forgotten what the surface even looked like – to do?
“Come now, we’ve covered this,” the ghost of Koro-sensei’s voice seemed to reach across the centuries to say. “The poor beast isn’t as terrifying as all that. Start by observing how he swings that blade. Next, look over each movement with the same attention to detail and piece together what you find.”
There.
“Don’t you see?” Koro-sensei asked.
And he did. Stain was skilled and he had many blades, both literal and metaphorical. It would be near impossible for a hero of Nagisa’s skill level to beat him, steel to steel.
But Nagisa didn’t need to beat him. Because he didn’t need to be a hero, not to do this.
“Voila,” Koro-sensei said. “A trivial adversary indeed.
“Now, use that trusty blade to fillet him.”
Series
- Part 3 of All for Assassination
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Sıradışı Gelecek by Lalahmhm
Fandoms: Assassination Classroom, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
19 Nov 2025
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Summary
UA'nın parlak kapılarına bakarak Nagisa, anti-sensei bıçağını çıkardı ve ucunu işaret parmağıyla oynattı. Mach 20 hızında Hawaii'ye gidebiliyorsa, arkadaşlarını zehirlenmeden kurtarabiliyorsa ve uzaya gidebiliyorsa, bunu da kesinlikle yapabilirdi: yeni bir okul yılına, yeni bir sınıfa, yeni bir sınıf öğretmenine uyum sağlayabilirdi.
Çünkü zaman yolculuğu olmasa bile, dağ tepesindeki sınıflarından ayrılmak her zaman planları arasında olmuştu. Koro-sensei, onların mümkün olan en iyi hayatları yaşamalarını istiyordu.
Bu hayatın tuhaflıklar ya da Shiro'yu – pardon, All for One'ı – antimadde Nomu ile dünyayı ele geçirmesini engelleme görevini içereceğini beklememiş olsa da... Nagisa, Koro-sensei'nin yine de onlarla gurur duyacağını umuyordu.
Bıçağı bir kez daha çevirdi, kapıdan geçen diğer öğrencilerin endişeli bakışlarını görmezden geldi.
“Peki, Koro-sensei,” diye fısıldadı, bıçağını kararlı bir şekilde gizli kılıfına geri soktu. Sırt çantasını düzeltti, omuzlarını dikleştirdi ve sonunda kapıdan geçti. “Eğer bizi izliyorsan… Sanırım geleceğimizin zamanı geldi.”
Series
- Part 2 of Hepsi Suikast İçin
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Summary
Nagisa Shiota is a Grunt Worker, a nobody, so why do the executive members seem so interested in him.
OR I wanted an AC Yakuza story so I wrote an AC Yakuza story
FINALLY UPDATED
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Summary
No matter what Nagisa did he was never enough.
He wasn't a good enough child, that's why dad left.
He wasn't a good enough daughter for his mother. In fact he couldn't be a daughter as all since he was a boy. Even more of an imperfection.
Follow Nagisa on this adventure, where he not only gains friends but perhaps a new family (*wink wink*)
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Isogai, worried about the living conditions of some of his classmates, asks for help from the only adult he thinks is capable of listening and helping: Karasuma-sensei.
Comfy-vember day 9
Prompt: Sharing secretsSeries
- Part 9 of Comfy-vember 2025
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It was Tentacles all along... by Elinn
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Assassination Classroom
06 Nov 2025
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Summary
After their last school year, Class 3-E are convinced that anything can't go worse than it has already been. After all, hey've spent the whole yar being trained to be deadly assassins by the hero comission and kidnapped more times that it's normal to be kidnapped in your next 20 lifetimes.
Turns out, that the shit-show has just begun for them.
At least now they have each other, their training and their experienced to get through whatever it comes for them.
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Summary
When the mysterious twins, Nox and Regius, are transferred to Class 3-E, everyone knows life on the mountain will never be the same. Their calm precision, eerie composure, and assassin-like instincts set them apart from the start — but so does the wall they keep around themselves.
As the class bonds and grows under Koro-sensei’s impossible guidance, What happened to the twins? What are they hiding behind those guarded eyes and quiet smiles?
While Class 3-E works to break through their defenses, the twins struggle with the shadows of their pasts and the secrets that could change everything. Will friendship and trust heal their scars — or will they simply fade into the background, ghosts of their former lives, until the day they finally take their shot at their teacher?
- Language:
- English
- Words:
- 2,271
- Chapters:
- 2/?
- Hits:
- 28
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Summary
Basically what the author couldn't do: I'm going to write Assassination Classroom just as it is in the anime but from Nagisa POV and with karmagisa, nothing else will be changed. READ THE NOTES PLEASE THANK YOU
I'm a writer, but english is not my first language so bear with me. -
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Summary
Historical AU - E class are peasants and Karma is teh youngest and most unwanted son of the king and queen who often spends time in the E class fields just hanging out with his friends.
Series
- Part 9 of Angstober 2025
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Güle Güle Dün by Lalahmhm
Fandoms: Assassination Classroom, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
08 Oct 2025
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Summary
Koro-sensei'nin öldürülmesinden sonra, Shiro deneylerine devam etmek için hayatta kaldı. Ve tüm 3-E'yi ilk denekleri olmaları için kaçırdı.
İlk Nomu'ları.
Ama bir şeyler ters gitti. Fazlasıyla ters.
Ve şimdi, dehşete düşmüş 27 genç, bir femme fatale ve son derece fazla çalışan bir hükümet ajanı, suikast derslerinin onları hazırlayabileceği hiçbir şeye benzemeyen bir dünyada uyanıyorlar.
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Ritsu mutluluk gözyaşlarına boğulmak üzereydi ve Tsukauchi şok olmuş bir halde ikisinin arasında bir ileri bir geri bakıyordu.
“Onları dışarı çıkaracağız, güvende olacaklar, söz veriyorum,” dedi kız.
“Biz... Ritsu, burada ne yapıyorsun? Ne zamandan beri polis karakollarına giriyorsun?”
Ritsu birden çok üzgün göründü. “Karasuma-sensei... Bunu size nasıl söyleyeceğimden emin değilim... Ama 232 yıldır 3-E'den kimseyi görmedim.”Series
- Part 1 of Hepsi Suikast İçin
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All the things that I've done, I can't erase, but I'll try. by boringstoriesss
Fandoms: Assassination Classroom, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
08 Oct 2025
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Summary
A Deku as Nagisa crossover fic.
His lessons on hiding the truth were from the Japanese Government itself who asked a bunch of middle schoolers not to even tell their parents that they were being trained to kill, regardless of how many times they almost got killed in return. In fact, Nagisa was still lying to his classmates at UA about that, and they got paid ten billion yen to ensure that they never talked to anyone about their third year in middle school. So why was the past slipping out? Will his classmates find out what secret's he is hiding?
Mostly focusing on the bonds between the children with some bigger events coming in. :)
REWRITTEN ON 10/13 -
The World is a Stage I've Decided to Step In by KorkRam
Fandoms: Assassination Classroom
29 Sep 2025
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Summary
Karasuma Tadaomi is in charge of the Assassination Classroom dilemma. Only thing is, he has a child, one that the government wants to be part of this classroom. Although he is a government agent, the troubles his son has been put through before terrify him.
Now, it's time to let him grow into something more. This year, though it may be the last, it's time for the boy to see the world for himself. Of course, Tadaomi will guide him all the way.
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Our Assistant Teacher is Insane! [ REWRITE ] by B3rryy_Jam
Fandoms: Assassination Classroom, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
21 Sep 2025
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Summary
The girl shot up so quickly her chair squeaked against the floor. “Nagisa-sensei!” she beamed, eyes shining with unfiltered excitement. “What’s your quirk?”
The room seemed to lean in all at once, a ripple of anticipation spreading through the students. Even the green-haired boy in the front row — who already had a notebook open — was practically vibrating, pen poised like he was about to record every word.
For a moment, Nagisa only smiled back at them, soft, calm, the kind of expression that gave nothing away and yet somehow eased the air in the room. His eyes swept lightly across the expectant faces, catching sparks of excitement, curiosity, and even a little awe. Then, with the same steady composure he had carried all morning, he answered:
“…Why, I’m Quirkless.”
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After Paradise High School, Karasuma contacts Nagisa and sends him on a mission to UA. The goal? Monitor and teach combat to the new upcoming hero students in Class 1-A. So, Nagisa becomes Aizawa’s assistant teacher.
Weekly Updates!!!
Series
- Part 2 of Nagisa as 1-A's Teacher
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I have a feeling you got everything you wanted(and you’re not wasting time stuck here like me) by invigilator_straycrow
Fandoms: Assassination Classroom, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
09 Sep 2025
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Summary
Class 3-E, a class of underaged, traumatised children, just trying to cope with their sensei’s death. The universe said “SIKE” and now, they must navigate in a world of unknown… with stupid “villains” and “heroes”..? (Good luck!!)
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Why is a buffed man wearing thongs and a skin-tight swimwear sashaying through the neighbourhood with children watching them, starry-eyed? What the hell is wrong with this world??Series
- Part 1 of threads of shattered time and space
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Epic the Musical. by Xiaoshrimp
Fandoms: Assassination Classroom, EPIC - Jorge Rivera-Herrans (Albums)
20 Aug 2025
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Summary
Korosensei forces E class to film a musical over the course of months, read as Rio and Terasaka recount their happy days of filming the scenes. Karma as Odysseus why? Because Korosensei said so.
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Summary
She turned to the door, considering to get out there and continue. It could make the job quicker. Or slow them down. Having an injured hitman on the team won't help them much. "Fuck."
Kayano ( Akari ) took a wrong turn and got slightly hurt. Karma found her and used the best of his basic knowledge to help patch her up. That's it that's the fic
The injuries/wounds mentioned are not severe and described non-explicitly! Ts just a short crackfic and minor Akari + Karma fluff cus I wanted to.
- Language:
- English
- Words:
- 1,261
- Chapters:
- 1/1
- Kudos:
- 4
- Hits:
- 33
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Hero Classroom by Wendy_Noire
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Assassination Classroom
17 Aug 2025
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Summary
When applying to high schools Karasuma told 3-E that the Department of Defense wanted them to apply to UA, so everyone did. Surprisingly for the dead end class of quirkless rejects, they all got into the classes they applied to.
They have a head start compared to their classmates, at least a year of playing the unwinnable game against the unkillable teacher had taught them the limits of their bodies. Then again, Karma and Nagisa were the first quirkless students in class 1-A in the entirety of UA's history, and that had a certain tone to it.
Nagisa's home life was also getting worse.