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1. As the Seasons Change by cloud_0618

   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
   • M/M
   • Work in Progress

   28 Nov 2025

   Tags

   • Graphic Depictions Of Violence
   • Akaza | Hakuji/Rengoku Kyoujurou
   • Akaza | Hakuji (Kimetsu no Yaiba)
   • Rengoku Kyoujurou
   • Rengoku Senjurou
   • Rengoku Shinjurou
   • Tamayo (Kimetsu no Yaiba)
   • Kochou Shinobu
   • Kibutsuji Muzan
   • Demon Slayer Corps Hashira | Pillars
   • Upper Demon Moons Ensemble (Kimetsu no Yaiba)
   • Koyuki (Kimetsu no Yaiba)
   • Keizou (Kimetsu no Yaiba)
   • Kamado Tanjirou
   • Alternate Universe - Canon Divergence
   • Canon-Typical Violence
   • Rengoku Kyoujurou Lives
   • Akaza | Hakuji is Bad at Feelings (Kimetsu no Yaiba)
   • Rengoku Kyoujurou is trying his best
   • Akaza is also down bad
   • Top Akaza | Hakuji (Kimetsu no Yaiba)
   • Bottom Rengoku Kyoujurou
   • Eventual mpreg
   • not omegaverse I promise it's Akaza's weird demonic shit
   • Animal instincs for Demons
   • OC child character eventually - Freeform
   • Rengoku Shinjurou's A+ Parenting
   • Forbidden Love
   • Kibutsuji Muzan Being an Asshole
   • Kind Of
   • Akaza is the favorite child
   • which isn't as good as it sounds ngl
   • Mating Bites
   • Mating Bond
   • Yeah they lowkey freaks
   • Koyuki is a sweetheart
   • Angst
   • Kamado Tanjirou is a Ray of Sunshine
   • Medical Inaccuracies
   • Rengoku Kyoujurou is a Good Older Brother
   • Rengoku Senjuro is a Sweetheart
   • Rengoku Shinjurou Tries
   • Akaza | Hakuji Has No Sense of Personal Space
   • Enemies to Lovers

   Summary

   Rengoku Kyojuro, looking back now, figured no one could have expected this. He supposes this is what his mother meant by life being an unpredictable, beautiful river—one that threatnes to drown you.

   And, my goodness, does this demon make the very careful life he built crumble.

   Or:
   The one where Akaza accidentally gets some of his blood inside of Kyojuro's system, and it has the most unlikely consequences—both in the Flame Pillar surviving the fall, and Akaza's newfound curiosity.

   Language:

   English

   Words:

   18,915

   Chapters:

   4/?

   Comments:

   43

   Kudos:

   125

   Bookmarks:

   27

   Hits:

   1,775