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1. Iridescence by Toothbrush_required

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

   • Explicit
   • Graphic Depictions Of Violence, Underage Sex
   • M/M
   • Work in Progress

   16 Jun 2026

   Tags

   • Graphic Depictions Of Violence
   • Underage Sex
   • Shinazugawa Sanemi/Tomioka Giyuu
   • Shinazugawa Sanemi
   • Tomioka Giyuu
   • The Other Hashira
   • Shinazugawa Genya
   • Shinazugawa Family (Kimetsu no Yaiba)
   • Original Characters
   • Other Characters
   • Tomioka Tsutako
   • Tomioka Family (Kimetsu no Yaiba)
   • Teen Romance
   • Teenagers
   • Teen Angst
   • Horny Teenagers
   • Boys Being Boys
   • Period-Typical Homophobia
   • Homophobia
   • Royalty
   • Tomioka Giyuu Being a Brat
   • Giyuu doesn’t know what gay is
   • Drugs
   • Alcohol
   • Anal Sex
   • Horn Stimulation
   • Wing Grooming
   • “Demons” are just humans with horns
   • “Angels” are dicks
   • Giyuu is spoiled
   • Colour changing with the seasons
   • Arguing
   • Scratching
   • Talons
   • sharp teeth
   • Giyuu in “cosplay”
   • Sickness
   • Loss of Control
   • Vicious angels
   • Horn Care
   • Horn cosmetics
   • Genya is a nerd
   • Dislocated bones
   • Broken Bones
   • Blood and Gore
   • Eating Raw Meat
   • Top Shinazugawa Sanemi
   • Bottom Tomioka Giyuu
   • Giyuu hates being the bottom
   • Giyuu is so blunt it’ll get him cancelled
   • Skinny Dipping
   • Small Towns
   • Size Difference
   • Ancient History
   • Tsugikuni Yoriichi is an angel literally and figuratively
   • Uta is a sweetheart
   • Thousands of years of misunderstanding
   • Protective Tomioka Giyuu
   • Racism
   • Period-Typical Racism
   • Being Walked in On
   • Slow Burn
   • Government Agencies
   • Temper Tantrums
   • Tomioka Giyuu is a Little Shit
   • Other tags may be added

   Summary

   Sixteen year old Sanemi lives his life quietly. Him and his family live on an old farm in the small town of Ekonch. The only thing that seems to impose on Sanemi’s peace are the looming mountains that seep into the towns history like an unsolved mystery. When a financial issue begins to cloud his mind, another issue grows in the form of his younger brother Genya, who’s obsessed with discovering the unknown.

   After a night of chaos, signed emails, and opened windows, the question of what’s in the unknown rises and embodies itself in the form of a fundamentally life changing visitor.

   Language:

   English

   Words:

   11,805

   Chapters:

   5/?

   Comments:

   11

   Kudos:

   51

   Bookmarks:

   5

   Hits:

   591