Assinationclassroom Stories

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1.2K Stories

  • The Spare (khr x assclass) by Sapphire_1212
    Sapphire_1212
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      Reads 2,325
    • WpPart
      Parts 19
    the story is pretty basic. Tsunayoshi Sawada (a girl in this story because i can't for the life of me get into the mindset of a dude) is sent to Kunugigaoka and has to be an assassin. Just like mentioned in the title, this is a Katekyo Hitman Reborn! x Assassination Classroom fanfic. There are a few out there. and by few i mean like 4? or 5? anyway i liked that tipe of idea and wanted to do my own story to it. The twist is, the whole khr side of the story is pretty much an AU type of stuff while the main story follows the one of Assassination (with a few khr twists of course). (also on ao3- s4ppH13r)
  • Nagisa in MHA by Anactualgenius
    Anactualgenius
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      Reads 2,740
    • WpPart
      Parts 11
    Basically, Nagisa finds himself in mha, the question is how is he going to get home? And how is he going to make a living until then. Also what do you mean quirks?
  • 𝐒𝐋𝐄𝐄𝐏𝐘𝐇𝐄𝐀𝐃 , 𝐚𝐤𝐚𝐛𝐚𝐧𝐞 𝐤𝐚𝐫𝐦𝐚 by promisekeigo
    promisekeigo
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      Reads 322,112
    • WpPart
      Parts 25
    ❛ how troublesome. ❜ ↳ . . . # akabane karma x fem!reader. 🐇 ➤ 𝗦𝗬𝗡𝗢𝗣𝗦𝗜𝗦 a bunch of junior high students are given a mission to assassinate their mach speed teacher before graduation. during this time a sadistic red head becomes close with his seatmate who considers herself a sleepyhead due to her frequent sleeping, their bond soon blossomed more. ➤ started ! 07.10.2022 ➤ ended ! ➤ status ! rewritting. ongoing. ➤ slowburn romance , follows the plotline. ➤ cover artist ! suimineru on x. © - yusei matsui.
  • Red Eyed Wolf (Assassination Classroom fanfic) by Blackfire902
    Blackfire902
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      Reads 9,616
    • WpPart
      Parts 73
    Amber Smith is a young assassin abandoned by her mother and feared by her pack. Her heart frozen by her cold-hearted mother as made it hard for her to live a normal life, a life her father and pack wishes for her. But what will happen when Amber joins Class-E and meets all the other students? Will she stay cold-hearted and kill Korosensei? Or will the students and Korosensei be able to melt her heart? And what happens when Amber finds the truth about her family? What happens when she finds she's not a full-blooded werewolf?
  • Perfect Flaws | Gakushu Asano X Reader by Poppy1413
    Poppy1413
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      Reads 137,579
    • WpPart
      Parts 49
    (On Going) (Gakushu x Reader) The beloved boy of the school name Gakushu Asano is perfect in every way, which is why many people love and respect him. He was worlds apart from someone like you. You weren't really anything special like him, nor did you wanted to be. However, things in your life took another direction when Asano asked you to come over to his home so you can meet his mother. Disclaimer: I do not own Assassination Classroom, nor the characters, and the pictures I use.
  • Karma has a what!? (Assassination Classroom Fanfic) (Karma's little sister~) by Animeandmangafangirl
    Animeandmangafangirl
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      Reads 243,823
    • WpPart
      Parts 30
    Karma has been hiding something from his classmates. And no, not even Nagisa knew about it. One day, it appeared. Who is that little girl? How does Karma-kun know her? What...hold up a second.... Are you telling me that....KARMA HAS A WHAT!? Some characters might be a bit OCC. A collection of events that include my OC. I take requests! I do not own Assassination Classroom!
  • The Feral |Ansatsu Kyoushitsu X Tokyo Ghoul| by 1_am_I
    1_am_I
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      Reads 15,565
    • WpPart
      Parts 10
    |Ansatsu Kyoushitsu (Assasination Classroom) & Tokyo Ghoul Crossover| fe·ral ˈferəl,ˈfirəl/ adjective (especially of an animal) in a wild state, especially after escape from captivity or domestication. ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• In the world of assassins, a species named "Ghoul" came to an existence. After years of movement, more ghouls became active and soon, the CCG was formed. Famous SS-Rate and S-Rate ghouls include, Binge Eater, Gourmet, Rabbit, Owl, and the newcomer, Eyepatch. After the loss of Binge Eater, Kanna Ken has been in suspicion by the CCG. She is suspended for a year in Kamii Junior High School with her last resort of Kunugigaoka Junior High School. With the aptitude of intelligence and hard work, she is put to the class of the dull-witted, Class 3-E. How will she be able to cope up with her classmates and especially her teacher, who is treated as an unidentified octopus? Wait- let me rephrase that. How will she be able to cope up with her seat mate, Karma? Will she be able to unravel her feelings? Or will she end up being a dead vegetable in Cochlea? This is where Assassins meet Ghouls. Life has never been so unravelling and incompetent. Gender bend Kaneki :ccc ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• VIEWER DISCRETION IS ADVISED MAY CONTAIN SPOILERS AND
  • Assassins in a host club by ImANaLuShipper
    ImANaLuShipper
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      Reads 268,665
    • WpPart
      Parts 25
    After graduating from junior high, class e managed to turn Koro Sensei back into a human. Now Nagisa and Karma are attending Ouran high school. What trouble with they cause?
  • 𝐋𝐀𝐁𝐘𝐑𝐈𝐍𝐓𝐇 кαямα αкαвαиє χ f!σ¢ by LeleTaylorsVersion
    LeleTaylorsVersion
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      Reads 327
    • WpPart
      Parts 8
    "'𝙲𝚊𝚞𝚜𝚎 𝚝𝚑𝚎𝚢 𝚜𝚊𝚒𝚍 𝚝𝚑𝚎 𝚎𝚗𝚍 𝚒𝚜 𝚌𝚘𝚖𝚒𝚗', 𝚎𝚟𝚎𝚛𝚢𝚘𝚗𝚎'𝚜 𝚞𝚙 𝚝𝚘 𝚜𝚘𝚖𝚎𝚝𝚑𝚒𝚗' 𝙸 𝚏𝚒𝚗𝚍 𝚖𝚢𝚜𝚎𝚕𝚏 𝚛𝚞𝚗𝚗𝚒𝚗' 𝚑𝚘𝚖𝚎 𝚝𝚘 𝚢𝚘𝚞𝚛 𝚜𝚠𝚎𝚎𝚝 𝚗𝚘𝚝𝚑𝚒𝚗𝚐𝚜" "ᴡʜᴇʀᴇ ᴛᴡᴏ ᴛᴇᴇɴᴀɢᴇʀs ᴀʀᴇ ғᴏʀᴄᴇᴅ ᴛᴏ sᴛᴜᴅʏ ᴛᴏɢᴇᴛʜᴇʀ"
  • Emotionless.... Beast? || Karma Akabane Love Story (AssClass FF) by Wolfcat500
    Wolfcat500
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      Reads 18,491
    • WpPart
      Parts 31
    I'm an emotional beast, a monster that should die, even worse than the monster before me that can destroy the moon - a yellow octopus that has a speed of mach 20. Me - a monster that could accidentally kill someone and isn't accepted into society and who has a mother that wants me to die. It was simple. The only answer was for me to die - except it was impossible. Therefore, I don't care anymore. I live, I live, if I die, I die. I welcome death, and live life as normal. Emotions? I don't need them anymore. I don't know what they are. I don't care. Mother doesn't care for me? I don't care for her. she beats me up? I don't care. She hates me? I don't care. I simply, don't care. About me, or anyone. At least, that was before I met E Class.
  • Assassins and Heroes: The Field Trip by OwlyPersona125
    OwlyPersona125
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      Reads 449,611
    • WpPart
      Parts 16
    Midoriya is at UA, the school of his dreams. He wants to forget about Korosensei's death and wants to stay in the moment, with his friends. What happens when Class 1a meets with used-to-be Class 3e for a field trip to their mountain? What happens when secrets are revealed? AKA Midoriya was in Assassination Classroom and Class 1a isn't ready for any of this training. Why the hell would you jump in trees like Tarzan?! Neither Mha or Assassination Classroom characters are my own. Any artwork shown is not mine. Cross-posted on AO3
  • Assassination Classroom: Next Gen.  by Misa_Amane-2020
    Misa_Amane-2020
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      Reads 4,126
    • WpPart
      Parts 6
    What if those light orbs from Koro-sensei's death created another yellow octopus like him? What if he became a teacher and taught class 3-5 at Paradise High? What if Karasuma, Irina, and old Class 3-E have to save the world again? What if half of the class of delinquents were offsprings of some couples in 3-E? How will they react when their parents shows up?
  • Scarlet Wolf ➸ Assassination Classroom Fanfic { COMPLETED } by Cosmic_Dragon_
    Cosmic_Dragon_
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      Reads 551,087
    • WpPart
      Parts 49
    ¡¡¡COMPLETELY DONE!!! { Completed August 21, 2018 } The E-class is tasked with such a difficult task. Killing a yellow creature that can move at Mach 20. With this, the government seeks out help from another assassin. One unlike the others. Kraftvoll Kaji might live in Japan, but she's lived most of of life in Germany. She moved along with her father to Japan for his business. Not having a choice in the matter. When her father dies, Kaji is left to rote in Japan all by herself. However, the government seeks her out in hope she'll help them with there difficult task. She has nowhere else to go. So, why not? What could possibly go wrong? { Karma X oc } Note: I do not own Assassination Classroom or it's characters.
  • The reaper's daughter by EloraCollins2012
    EloraCollins2012
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      Reads 98
    • WpPart
      Parts 25
    A girl who happens to be the daughter of the legendary assassin "The reaper" (Ryushi Korogane)
  • [Karma x Reader] Multisided by kawaiiaize
    kawaiiaize
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      Reads 53,177
    • WpPart
      Parts 10
    (Y/n), a girl who came out of the classroom ceiling? A new, transfer student? Seems so! She sounds cute and friendly! Although she's a little too stupid... ... is that really (y/n)? Karma finds her out.
  • This is Your Fate: A male reader x assassination classroom story by Bluebleo
    Bluebleo
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      Reads 286,066
    • WpPart
      Parts 24
    Y/n "Fate" Akabane. Murderer, thief, and loving older brother. Wait...one of these things is not like the other. That's right, Y/n is the older brother of Karma Akabane of class E-3. Despite how he acts to most people, he loves his younger brother more than the world itself. Which is why its a little strange that he disappears, leaving his brother behind. Four years later, Karma Akabane joins class E-3, in an attempt to help kill Koro-sensei. Soon after, the famous assassin "Fate" shows up in Tokyo. Karma knows who Fate is, as well as Nagisa. Suddenly, Koro-sensei and Kurasuma bring the class, and Ms. Bitch, into a forest to search for Fate. Will it be a happy reunion for the brothers? And how will "Fate" react to Koro-sensei?
  • A Liar's Truth [UNDER FINAL REVISION] by Karmi_25
    Karmi_25
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      Reads 299,781
    • WpPart
      Parts 46
    Akabane Karma, a sharp-witted delinquent with a past riddled with betrayal, prides himself on seeing through deception. He thrives in chaos, yet finds himself entangled in a web of his own uncertainties. Then meets Asano Ginka, a captivating idol who lives her life with meticulous precision, fabricating a mask that keeps all that's real hidden. When their worlds collide, it's a game of control-a delicate waltz between truth and pretense. Karma, wary of masks after a lifetime of lies, refuses to believe in Ginka's sincerity. And yet, the more he tests her, the more he finds himself drawn into her performance. Is she just another liar playing a role, or is there something real hidden beneath the stage lights? And more importantly--will he be the one to unmask her, or will she be the first to unravel him? DISCLAIMER: Follows manga storyline Crossover of some anime characters cuz ya ghorl too lazy to make new ones >︿< I only own the OC, cover, and extra plot I used cannon AC names for supporting casts but created their own personalities. I do not own Assassination Classroom, cannon characters, credited arts, and all the songs I used in this story.
  • A Little Nightmare Awaits (SLOW UPDATES) by the_cat_friend
    the_cat_friend
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      Reads 7,286
    • WpPart
      Parts 30
    I suck at descriptions so basically this is a sort of crossover between Little Nightmares 2 and Assassination Classroom since no one has thought of this I decided to do it. And the fact that I can hardly find Little Nightmares fanfic with males in it plus the same thing with Assassination Classroom. So I decided why not do both. Also Mono will be changed to fit this story so the character personality, designs, and flaws will be entirely up to me. And I will put him as what I think the type of student he was before and after he was put into E-class. Don't like it then don't read. Simple as that. Also I take no claim for Assassination Classroom it belongs to the rightful owner and I take no claim over Mono. He belongs to the creators of Little Nightmares.
  • Assassination Classroom | Reader Insert | Karma x Reader by chunihan_01
    chunihan_01
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      Reads 35
    • WpPart
      Parts 4
    after the death of her parents, Karasuma had taken her in. during her 3rd year of school, when Y/n finds out about Koro-sensei, she finds a way to get to E class. while trying to fix her past friendships, she encounters a red head who is inquisitive about her life. ! even though some chapters are posted, they are still being edited ! I always find some context missing or i didnt like how i wrote a certain scene lol note: this is my first story, i have no idea how to write 😭 this may take me a while to write, but I have a lot in store for y/n so please hang tight! also, the movie "Everyone's Time" is coming out soon in 2026 so i guess to celebrate, i'll write this story lmao *I DO NOT OWN ASSASSINATION CLASSROOM. ALL RIGHTS BELONG TO YUSEI MATSUI* i just own the character i inserted :P ~Highest Rankings~ #13 in #karma #4 in #akabane
  • Hidden Inside | Karma x Reader | Magic AU by Two_Chi
    Two_Chi
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      Reads 2,755
    • WpPart
      Parts 24
    Y/n L/n is a 16-year-old witch who has been kept in her home all her life. Even though she is part of high-class society, she is treated like dirt. She is about to be attending Kunugigaoka High Magic School as a junior boy. Will her life turn out for the better when she meets a certain redheaded wizard? Keep reading. Disclaimer: I am a very slow uploader and I lose and gain motivation sporadically