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1. Public Bookmark 6

   A Sister’s Duty by Darkened_Moon028

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

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • F/M
   • Work in Progress

   23 Dec 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Douma/Kochou Shinobu
   • Douma (Kimetsu no Yaiba)
   • Kochou Shinobu
   • Kochou Kanae and Kochou Shinobu's Parents
   • Kochou Kanae
   • Kibutsuji Muzan
   • Akaza | Hakuji (Kimetsu no Yaiba)
   • Alternate Universe - Historical
   • Arranged Marriage
   • Edo Period
   • Angst
   • Betrayal
   • Sex
   • Religious Cults
   • Douma Being Douma (Kimetsu no Yaiba)
   • Kochou Shinobu Needs a Hug
   • Murder-Suicide
   • Power Dynamics
   • Power Imbalance
   • Nudity
   • Warning: Douma (Kimetsu no Yaiba)
   • Mind Games

   Summary

   During the Mid-Edo Peroid as Muzan and his Upper Moons rose to power they overthrew the human government in favor of the Yokai. Now human high born ladies are sent off to earn favor of the Upper Moon who ruled the region tgey controlled. When Kanae Kochou runs to escape her marriage to Lord Douma, also known as Upper Moon Two, not only does she break marriage arrangement but she also invoke Muzan’s wraith towards her family for dishonoring him. Causing Shinobu to take her older sisters place, much to the enjoyment of Douma.

   Language:

   English

   Words:

   1,854

   Chapters:

   2/?

   Comments:

   3

   Kudos:

   47

   Bookmarks:

   6

   Hits:

   857

   Bookmarked by hiong_66

   26 Mar 2026