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1. When You're Lying Here, I Believe You Love Me by crustyyyy, crustyyyy_ (crustyyyy)

   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/F
   • Work in Progress

   04 Jan 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Shinazugawa Sanemi/Tomioka Giyuu
   • Shinazugawa Sanemi
   • Tomioka Giyuu
   • Uzui Tengen
   • Uzui Tengen's Wives
   • Iguro Obanai
   • Shinazugawa Kyougo
   • Kanroji Mitsuri
   • Alternate Universe - Gender Changes
   • Lesbian Sex
   • Hook-Up
   • Secret Relationship
   • Yuri
   • Song Lyrics
   • Song: On Your Side (The Last Dinner Party)
   • Scissoring
   • Denial of Feelings
   • My First Smut
   • Female Tomioka Giyuu
   • Female Shinazugawa Sanemi
   • Post-War
   • Title from a The Last Dinner Party Song
   • Internalized Homophobia
   • Switching
   • Smut
   • Shameless Smut
   • Fluff and Smut
   • Light Angst
   • Emotional Hurt/Comfort
   • I Wrote This While Listening to Girl in Red's Music
   • Female Iguro Obanai
   • Mentioned Iguro Obanai
   • Mentioned Demon Slayer Corps Hashira | Pillars
   • Tomioka Giyuu Needs a Hug
   • Yearning
   • Pining
   • Implied/Referenced Child Abuse
   • Past Child Abuse
   • Alternate Universe - Canon Divergence
   • Period-Typical Homophobia
   • Acceptance
   • Self-Acceptance
   • Self-Worth Issues
   • Self-Doubt
   • Self-Discovery
   • Lesbian Character
   • Out of Character
   • Implied/Referenced Sex
   • Mentioned Kanroji Mitsuri
   • Male Kanroji Mitsuri
   • Mentioned Kyougo Shinazugawa
   • toxic yuri
   • Homophobia
   • Making Out
   • Gentle Kissing
   • Kissing
   • Girls Kissing
   • Author is a Sucker for Toxic Yuri
   • Mentioned Tomioka Tsutako
   • Badly Written Smut
   • Author struggles with writing longer chapters
   • Author is better at writing descriptions than dialogue/interactions

   Summary

   SaneGiyu gender swap au based off a TLDP song (on your side)

   Aka Giyu trying to not get attached to someone so he can avoid the pain of losing them.
   __________

   Sanemi and Giyu regularly hook up after any missions they have together, and they try to deny their feelings for eachother. All while trying to keep their "relationship" a secret from the other Hashira.

   __________

   (Could continue to post war)

    

   I'm trying to make my fanfics longer and more interesting, so hopefully this is ok (I'm better at writing descriptions than I am dialogue or smut)

   Language:

   English

   Words:

   2,004

   Chapters:

   2/?

   Comments:

   4

   Kudos:

   33

   Hits:

   489