Adult Content Warning

This work could have adult content. If you continue, you have agreed that you are willing to see such content.

• Yes, Continue
• No, Go Back

If you accept cookies from our site and you choose "Yes, Continue", you will not be asked again during this session (that is, until you close your browser). If you log in you can store your preference and never be asked again.

1. Pain is Cold Water by Astren (astrcn)

   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

   13 Feb 2026

   Tags

   • Graphic Depictions Of Violence
   • Rengoku Kyoujurou/Uzui Tengen
   • Shinazugawa Sanemi/Tomioka Giyuu
   • Uzui Tengen
   • Rengoku Kyoujurou
   • Kochou Shinobu
   • Tomioka Giyuu
   • Shinazugawa Sanemi
   • Ubuyashiki Kagaya
   • Kanzaki Aoi (Kimetsu no Yaiba)
   • Uzui Tengen is a Little Shit
   • Alternate Universe
   • Miscommunication
   • Slow Burn
   • Psychological Drama
   • Angst and Hurt/Comfort
   • Demon Slayers (Kimetsu no Yaiba)
   • Mental Health Issues
   • Trauma
   • Found Family
   • Grief/Mourning
   • Uzuren
   • Eventual Smut
   • Slow Romance
   • Pain
   • Memory Alteration
   • Sexual Tension
   • Mutual Pining
   • Bottom Uzui Tengen
   • Shinazugawa Sanemi is So Done
   • Minor Shinazugawa Sanemi/Tomioka Giyuu

   Summary

   At the Ubuyashiki Psychiatric Center, Tengen Uzui struggles to piece his life back together from memories he can no longer reach.

   Kyojuro Rengoku arrives soon after, carrying his own wounds and a necessary lie.

   Around them, Sanemi, Giyuu, and Shinobu watch as everything spirals out of control, trying to protect and understand those in their care.

   Because even in a place meant to heal, some encounters hurt, others save… and one will change everything.

   Language:

   English

   Words:

   38,319

   Chapters:

   18/?

   Comments:

   14

   Kudos:

   43

   Bookmarks:

   8

   Hits:

   917