Welcometodemonschoolirumakun Stories

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186 Stories

  • Double Trouble in Babyls by jessyvt
    jessyvt
    • WpView
      Reads 772
    • WpPart
      Parts 11
    "If you think my brother is going to be your lunch, you're going to have to go through me first." Fourteen-year-old Suzuki Iruma has two major flaws: he is fatally soft-hearted, and he literally cannot say the word "no." Fortunately, he has a twin sister to make up for it. Suzuki Irumi is blunt, sarcastic, fiercely protective, and possesses a glare sharp enough to terrify a grown man. Together, they've survived a grueling life of labor thanks to their completely useless parents. But things go from bad to literal hell when their parents sell their souls to a high-ranking demon lord named Sullivan. Expecting torture and despair, the twins are shocked when Sullivan instead begs to become their doting, hyperactive grandfather. Suddenly, they are whisked away to the Netherworld and enrolled in Babyls, an academy entirely populated by demons. To survive, Iruma just wants to blend in and hide the fact that they are human. Irumi, on the other hand, is ready to break some horns if anyone looks at her brother wrong. Keeping a low profile immediately goes out the window on day one when Irumi crosses paths with Asmodeus Alice-the school's elite, flame-wielding honor student. After a chaotic showdown that turns the academy upside down, the fiercely proud demon prince finds himself utterly defeated, hopelessly intrigued, and completely devoted to the sharp-tongued human girl who refused to back down. Can a timid boy and his hot-tempered twin sister survive the demon world, or will Irumi end up ruling the Netherworld by accident? A 100% faithful adaptation of 'Welcome to Demon School! Iruma-kun' with an added twist of a protective twin sister, chaotic comedy, and a fiery demon-human romance!
  • WTDSIK - The Disastrous Life Of Kusuo and Iruma! by stareattheceiling
    stareattheceiling
    • WpView
      Reads 4,123
    • WpPart
      Parts 10
    Nothing better than an unstoppable duo of two brothers. One who can't say no to anything, with the ability to escape life-threatening situations, together with the other who is secretly a powerful psychic and just goes along with his brother's decisions. And whoever is reading this will witness these two brothers have their souls be sold to a demon!
  • Welcome To Demon School! Nagisa-kun by HypedLol
    HypedLol
    • WpView
      Reads 212,616
    • WpPart
      Parts 57
    What if Iruma got replaced with Nagisa? What if Nagisa was half demon? What if Nagisa' father was Sullivan's biological child making Nagisa his biological grandchild? What would be the story if the silent androgynous assassin was to go to babyls? Find out in "Welcome to demon school! Nagisa-kun" I dont own Assassination classroom and Welcome to demin school! Iruma-kun or any of the images used.
  • Welcome To Demon School! Angel-San! (WtdsikxOc) by Sugarflyarts
    Sugarflyarts
    • WpView
      Reads 18,386
    • WpPart
      Parts 17
    Erica Cassiel had been a Guardian Angel for quite some time now and although her ward lead a life that was nothing short of perilous, she would barely be able save him on account of him somehow managing to save himself. It was almost infuriating in a way. If only she could save him from his terrible life, but alas, lesser angels like herself were not allowed to go that far. At least until the day Iruma was dragged to the realm of demons and she had no other option than to bend a few rules. Or Iruma gets taken to the Netherworld and his Guardian Angel follows. ___ Welcome To Demon School Iruma kun is made by Osamu Nishi, I only own my Ocs and drawings.
  • Missing Wings  by Pauma_reads
    Pauma_reads
    • WpView
      Reads 23,912
    • WpPart
      Parts 7
    Iruma was an actual demon, he didn't have a tail or a horn and he lived in the human world for almost his whole life. He never questioned anything about himself, all he knows is that he had "parents" who left him anywhere to fend for himself and that he was not like any other child. His whole life he believed he was human, but he always felt something hurting his back. He doesn't remember himself getting scars as he mostly evades every danger he faces. It was already something that came to him naturally, his instincts per se Now suddenly being adopted and going to school in the netherworld. He thought he was still human until a sudden teacher who's popular for "experimenting" on students touched his back and immediately rushed him to the teacher's faculty room. What will their reaction be? Let's find out. -Ongoing and readjusting-
  • Mrs. Naberuis by ninishima_nishi
    ninishima_nishi
    • WpView
      Reads 21,441
    • WpPart
      Parts 5
    "he's married?" "him, the death lord... MARRIED?!?" "t-that's my older sister" what would happen if one of the teachers in babyl's academy came back after a long break..... "enough with your "shuku ni" or I'll sign a divorce paper" come and read
  • Iruma, The Assassin (On Haitus) by Akutxuki
    Akutxuki
    • WpView
      Reads 127,892
    • WpPart
      Parts 39
    Iruma's journey in the past in the human realm and attended an assassin school and how he will use it for advantage in the present here in the netherworld. Crossover: Mairimashita Iruma kun! & Assassination Classroom Credits to the rightful and original owner of the story(I already have permission to write here): irumatheassasin in tumblr https://irumatheassassin.tumblr.com/post/652431061752643584/chapter-11-the-assassin-who-got-proposed-on-live
  • Isekai'd Into the Wrong Timeline by Shinogumi
    Shinogumi
    • WpView
      Reads 1,937
    • WpPart
      Parts 41
    Y/N thought joking about getting isekai'd into Kalego Gaiden was harmless-until the universe apparently took it personally. Now stuck in Babyls as a fake archival assistant with a suspicious system giving quests, they have to survive demon school politics, hide the fact that they're human, and avoid wrecking the timeline. Unfortunately, young Naberius Kalego already thinks something about them is off, and he's exactly the wrong person to get suspicious.
  • "The Lilith Prophecy" | Kalego Naberius by julsxxvixen
    julsxxvixen
    • WpView
      Reads 1,707
    • WpPart
      Parts 8
    The sixth incarnation of Lilith, abandoned by her clan, was taken in and raised by Sullivan. She sets off to study at Babyls Demon School-and will later teach there-facing love, rivalries, and other unexpected conflicts. Suitors from all corners of the Netherworld compete for her heart, but her true challenge lies in fulfilling the Lilith Prophecy. Featuring Kalego Naberius x OC, inspired by the *Music Festival Arc: Lilith's Red Carpet.* This fanfiction is based on the animanga *Mairimashita! Iruma-kun*. All original characters belong to me; all other characters belong to Osamu Nishi. Book cover from the manga.
  • Sabro Sabnock x reader by TerryBullxp
    TerryBullxp
    • WpView
      Reads 849
    • WpPart
      Parts 11
    Sabro Sabnock x reader
  • Welcome to demon school Iruma-Kun x Male reader [ paused ] by THELIFEINABOOK
    THELIFEINABOOK
    • WpView
      Reads 5,556
    • WpPart
      Parts 8
    [ paused ] Ayumu died in a car crash and was reborn as a demon. His parents are very nice even if they look terrifying. He had a good childhood and over the years he learns that his a shadow demon that are expert in manipulating the shadows around them. When he goes to school he noticed a blue-haired boy trembling he walks to him and tries to calm him down. warning ⚠️ The images don't belong to me or the series.
  • On Hold| Serendipity- Asmodeus Alice x Reader by kaoru_uwu
    kaoru_uwu
    • WpView
      Reads 49,796
    • WpPart
      Parts 12
    ㄴ 𝘯𝟬ʋ𝘯 ☆。*。☆。Ṫⱨല ᏟⱨƋղᏟല 𝝤ᏟᏟ𝘜ṛṛലղᏟല 𝝤𝓯 ല𝗏ലղ𝙩𐒡 Ꭵղ Ƌ 𝔟ലղല𝓯ᎥᏟᎥƋ١ 𝕎Ƌᵞ߲ Meet (Y/N), a demon who is adopted as Sullivan's granddaughter. She doesn't like to socialize with new people, but this certain pink-haired boy was different. This story belongs to Osamu Nishi, (except for some extra scenes) Cover not mine
  • To everyone, Thank you! by IrumaToShax
    IrumaToShax
    • WpView
      Reads 159
    • WpPart
      Parts 6
    In the mysterious world of the Netherworld, human student Iruma Suzuki struggles to hide his true identity among demon classmates at Babyls School for Demons. Alongside his eccentric and energetic friend, Shax Lied, he navigates challenges that push them to their limits, from cunning tests to unforeseen dangers. As bonds are tested and friendships deepen, Iruma and Shax quickly discover that survival in the Misfit Class isn't just about strength-it's about trust, teamwork, and courage in the face of the unknown. United by a shared goal, they'll have to prove themselves against new rivals and challenges, or risk everything they've worked for.
  •  welcome to demon school iruma kun/ big brother of Neburus the second oldest   by chip3a
    chip3a
    • WpView
      Reads 53
    • WpPart
      Parts 1
    Basically, what if Kalego has another big brother who is the second oldest? That kailo Unlike Kalego, he is always smiling, likes to help, and is the opposite of Kalego, his little brother, and older brother, Narnia. Unlike them, he always smiles, likes to have fun, and does his duty as a guard dog at Babyls, just like his little brother, Kalego.
  • The Tail Of The Stoic Teacher by Fienbalkon
    Fienbalkon
    • WpView
      Reads 1,062
    • WpPart
      Parts 1
    Welcome to demon school Iruma-kun fanfic Don't own it. I don't own the picture Oneshot Kalego has an sensitive tail. Balam finds out. That's it.
  • Given Enough (WTDSIK)  by littlelav
    littlelav
    • WpView
      Reads 249
    • WpPart
      Parts 1
    (created: 07-12) Azz overhears Iruma's and Ameri's conversation. It doesn't affect him well. (not my actual first fic, this was all written on docs beforehand, imma put the creation date here! =v=)
  • Multi-franchise Texting/Conversations by Rozeal_Zhao
    Rozeal_Zhao
    • WpView
      Reads 1,018
    • WpPart
      Parts 34
    I thought make up some text message thing. I'll be adding in several anime franchises and other things. Now it turns out to be more than texting, and almost similar to daily life stories with crossovers. Animes included: Beyblade Burst (Discontinued) BanG Dream Tenkai Knights Pokémon Cells At Work Kaichou Wa Maid Sama Kaitou Joker Welcome To Demon School! Iruma-kun Others: Miraculous: Tales Of Ladybug And Cat Noir Disclaimer: I am not in ownership of these franchieses. They all belong to their respective creators/developers.