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  1. The Omega Problem by

    Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)  

    25 Sep 2025

    Tags
    Summary

    Kyojuro has been hiding the fact that he's an omega for a very long time. It hasn't been easy, but he has his reasons, and he once promised Senjuro that he would always do his best, even if that meant he was lonely.

    That is, until a chance encounter with Tengen finally exposes his secret. Tengen doesn't get it, but he's been sworn to secrecy, and he's not about to betray his friend's trust—his growing attraction aside.

    But when a mission pops up, keeping those secrets and feelings in check suddenly becomes a whole lot more difficult.

    Or, yet another Omegaverse AU. As if these characters don't have enough to deal with.

    Language:
    English
    Words:
    21,816
    Chapters:
    5/?
    Comments:
    106
    Kudos:
    304
    Bookmarks:
    59
    Hits:
    4,516