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1. Silent Embers, Eternal Flames by Beatisachemical

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

   • Explicit
   • Graphic Depictions Of Violence, Major Character Death
   • F/M, M/M, Multi
   • Complete Work

   09 Feb 2026

   Tags

   • Graphic Depictions Of Violence
   • Major Character Death
   • Rengoku Kyoujurou/Uzui Tengen
   • Hinatsuru/Makio/Suma/Uzui Tengen
   • Hinatsuru/Makio/Rengoku Kyoujurou/Suma/Uzui Tengen
   • Rengoku Kyoujurou
   • Uzui Tengen
   • Rengoku Senjurou
   • Rengoku Shinjurou
   • Uzui Tengen's Wives
   • Demon Slayer Corps Hashira | Pillars
   • Kamado Tanjirou
   • Kamado Nezuko
   • Hashibira Inosuke
   • Agatsuma Zenitsu
   • Upper Demon Moons Ensemble (Kimetsu no Yaiba)
   • Kibutsuji Muzan
   • Ubuyashiki Kagaya
   • Ubuyashiki Amane
   • Ubuyashiki Family (Kimetsu no Yaiba)
   • Canon Compliant
   • Canon-Typical Violence
   • Alpha/Beta/Omega Dynamics
   • Angst with a Happy Ending
   • Omega Rengoku Kyoujurou
   • Alpha Uzui Tengen
   • Vaginal Sex
   • mentioned mpreg
   • Blood and Gore
   • Marriage Proposal
   • Vaginal Fingering
   • Oral Sex
   • Rengoku Kyoujurou Lives
   • Rengoku Kyoujurou Needs a Hug
   • Rengoku Kyoujurou-centric

   Summary

   After surviving a brutal clash with Upper Moon Three, Akaza, Flame Hashira Kyojuro Rengoku is left broken, physically scarred, and forced into early retirement from the Demon Slayer Corps. Burdened by shame, his father's lifelong disdain for his omega status, and the belief that he's failed both duty and legacy, Kyojuro withdraws into isolation at the Butterfly Estate. There, unexpected solace arrives in the form of Sound Hashira Uzui Tengen, whose flamboyant care begins to thaw the ice around Kyojuro's heart. Yet even as their bond deepens into something tender and undeniable, Kyojuro remains painfully aware that Tengen's life is already anchored by unbreakable vows to his three wives. The dream of a shared future, of claiming what burns between them, remains forever just beyond reach—a flame that warms but never fully consumes.

   Language:

   English

   Words:

   57,610

   Chapters:

   2/2

   Comments:

   18

   Kudos:

   74

   Bookmarks:

   15

   Hits:

   1,001