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Assassination Classroom x Reader by miestardustscribbles
Fandoms: Assassination Classroom
20 Oct 2025
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Summary
You are Kunugigaoka's top student, student council president, and a master of deception. While admired by your peers and close to Gakushu Asano, the son of the ruthless principal, you hide your true identity as the youngest prodigy of a renowned family of assassins. Torn between your calculated facade and the brutal expectations of your family, your life takes a darker turn when your mother orders you to assassinate Principal Asano in exchange for freedom.
But hesitation during the mission exposes your identity, forcing you into an impossible situation: infiltrate Class 3-E under the guise of a mysterious transfer student to eliminate the alien teacher, Koro-sensei.
As you navigate your new role, your bond with Gakushu deepens, but Class 3-E's enigmatic Karma Akabane begins to challenge your indifference. Caught between Gakushu's quiet admiration and Karma's unpredictable intensity, you find yourself questioning not just your loyalties, but your own heart.
In a world of masks, deception, and assassinations, will you succeed in your mission, or will your conflicting emotions and divided loyalties become your ultimate undoing?
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At the heart of Kunigigaoka Junior High’s rumour mill was Ota Haruka, a simple girl who knew everything about everyone. She thought that putting herself in Class 3-E would solve all her problems, yet they only seemed to multiply. There was that redheaded jerk who was always pestering her, she was losing her ability to make music, and her favourite video game is far too expensive…
Oh, and her teacher is going to destroy the Earth at the end of the year.
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Moon Bunny Assassin by MiraculousKittyKat
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Assassination Classroom, Ouran High School Host Club - All Media Types
20 Oct 2025
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Usagi and her family move to a different area of Japan to give Usagi a chance to attend a better school. Little did Usagi know just how weird this school year would be.
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The first thing Y/N remembers is running through the woods. Besides that, she doesn't remember a thing about her past. On top of it, 70% of the moon blew up. Could these events be related or some bizarre coincidence? Join Y/N as she tries to remember her past, but also assassinates her teacher. Assassination Classroom belongs to the rightful creators. The only things that belong to me are Y/N and her backstory, as well as the slight changes to the storyline. New chapters on Mondays.
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The class had come so close to assassinating Koro-Sensei, but with that absolute defence form of his, they were back to square one. But that attempt seems to have tired out quite a few of the students.
But not the ones who should be tired.
Does a slightly different group of students still lead to the same outcome? Who knows...
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light from a dying moon by SilverMatrix_Glitch
Fandoms: Assassination Classroom, Sally Face (Video Games)
18 Oct 2025
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Summary
The flashing lights do manage to drag him out of bed and to his window. It’s not the best view of whatever’s happening, and Nagisa can’t hear much of anything from four stories up, but he just manages to see a man being walked out to the back of a police car in cuffs. Ms. Yukimura is speaking to what seems to be a detective. It might just be his mind playing tricks on him, but he’s almost certain he sees a small black cat slink away into the forest.
He shivers hard without the warmth of his blanket. He’d overestimated ‘morning’ when he’d woken up. It’s dark and cold, and Nagisa had abandoned his blanket with his bed when he’d dragged himself up to the window. But it doesn’t really seem like there’s all that much to it. It can’t be any later than four in the morning, so he lets himself slip back into the warmth of his covers.
It takes him just a little bit too long to properly fall back asleep.
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or, in the fallout of divorce, nagisa and his mother move to addison apartments.
Series
- Part 4 of silver's whumptober 2025 fics
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When you send the assassin who’s only ever killed one person on an intelligence mission. by Edgarpoe99
Fandoms: Assassination Classroom, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
17 Oct 2025
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Nagisa Shiota gets sent to UA by the ministry of defense in search for a potential traitor/threat.
Posted…(7/22/25)
Updated…(10/17/25)
!EXTREMELY SLOW UPDATES! -
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Karma was rescued from being kidnapped 25 days after being taken, a rather long time but he knows that his friends and class had been searching for him every day as hard as possible, after all it's what he would do for them.
He tries to uphold this belief despite Nagisa's guilty smile telling him the opposite. Because Nagisa is his friend and he would of course had payed attention to Karma being gone... right?Series
- Part 17 of Angstober 2025
- Language:
- English
- Words:
- 2,379
- Chapters:
- 1/1
- Kudos:
- 13
- Hits:
- 103
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"It would be a shame if something happened to one of the students who weren't in 3E." Takaoka shrugged.
"What did you do?" The principal snapped.
- Language:
- English
- Words:
- 274
- Chapters:
- 1/1
- Kudos:
- 26
- Hits:
- 201
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It was only a kiss (How did it end up like this?) by RosalieAnna
Fandoms: Assassination Classroom
16 Oct 2025
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Karma and Nagisa celebrate their third year anniversary by going to a café. If they were any other couple this would probably be fine. However, Karma needs to hide their relationship as he’s going for a promotion and being gay is a bit awkward in the Japanese government.
Unfortunately, Karma over supply of enemies (and lack of impulse control) means everything rapidly goes wrong.
Maybe Nagisa should have become an assassin after all.
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Never in his 15 years had Nagisa thought he would have to be in a fake relationship to protect his class's secret. But here he is, in a fake and unhappy relationship with a student from the A-Class.
And a jealous Karma who is unable to admit to his feelings for his best friend.
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Nagisa Shiota has always been invisible. People glance right past him, even those who should know better. That changes when he unexpectedly crosses paths with Gakushuu Asano. For some reason, they keep running into each other, as if the universe has decided to push them together. Each encounter leaves something behind: a feeling Nagisa can’t quite name. For the first time, being truly seen is both terrifying... and exactly what he’s been craving.
Gakushuu Asano, on the other hand, has built his life on perfection: Top grades, a flawless reputation, and total control. Nothing slips through the cracks. Until Nagisa Shiota came along. There's something about Nagisa that Asano can't get out of his head. The more their paths cross, the more his perfect mask begins to crack. If he wants answers, he might have to risk breaking the rules he’s lived by his whole life.
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Karasuma rescues and recovers Karma.
Series
- Part 15 of Angstober 2025
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He used to make a game of it, when he was alone. He’d picture that small ball of silver light as different animals; sometimes it was a fox, a jackal, a coyote, imagined canines in place of the real ones that he adored, sometimes it was something else entirely.
Series
- Part 5 of Fragment AU
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Nagisa becomes an assassin instead of a teacher, and lowkey kills his mom.
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Little Soldier Boy by Lillyluna325
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Assassination Classroom
14 Oct 2025
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**"They called me a monster before I knew how to speak. But monsters don’t protect their sisters from burning cities. Monsters don’t play lullabies for lost children. Monsters don’t try to save the world… when they’re still learning how to survive it."**
Karasuma Aizawa Izuku was never meant to be a hero. Born of legacy and secrecy—marked at birth, hidden by guilt—his story begins with fire, betrayal, and a name buried to keep him breathing.
From war-torn villages to underground labs, from orphanage traps to blood-soaked vigilante nights, Izuku carries every scar like a roadmap etched in pain. But even at age ten, with ghosts in his shadow and powers stitched from ancestral silence, he never stops running toward the people he loves.
This isn’t just a retelling—it’s a resurrection.
A multi-arc epic of survival, identity, found family, and the kind of love that rebuilds broken children into legends.This book also draws inspiration from other books and movies like *The Promised Neverland* and *Pan’s Labyrinth* for some arcs so please be advised.
Sorry I had to change it to 140 chapters since I hadn't accounted for the chapters that I had to split into two parts
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"Tonight, we bring you breaking news as we come on the air. A downtown tragedy has taken place, leaving a family destroyed. Next of kin has been notified so we can now release the details. A loving father Shiota Naoki and devoted mother Shiota Hiromi were tragically murdered last night in their home. Their only son Shiota Nagisa a recent graduate from the famed Kunugigaoka Jr. High appears to have gone missing. The police suspect kidnapping, but as far as they can see this crime appears to have no motive. We’ll keep you updated with more at 11."
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Gakushuu Asano becomes his father's pawn to resolve a debate about the way he educates his only child
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Gakushuu gains a new guardian for a month.
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With that final push, Nagisa lifted his head and looked directly at Karma, avoiding his intense gaze. He forced himself to speak the question that’s been burning on his mind since that morning. He forced himself to not think about the worst that could happen, and only on the best possible outcome. Anything to get out of the new reality that he was painstakingly living through.
“Karma-kun, I need you to be my fake boyfriend!”
As soon as he spoke, he swore he heard a pin drop.
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E class gets a new student, or maybe an old student? No one is sure really how to classify him. All they really know is that the new student is completely different from how he used to be.
Series
- Part 11 of Angstober 2025