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1. When Fate Says “I Do” ~ObaGiyuu by Lucille_Tomioka

   Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime & Manga), Married at First Sight (TV)  

   • Mature
   • No Archive Warnings Apply
   • F/M, M/M
   • Complete Work

   01 Jun 2026

   Tags

   • No Archive Warnings Apply
   • Iguro Obanai/Tomioka Giyuu
   • Kanroji Mitsuri/Shinazugawa Sanemi
   • Kanroji Mitsuri & Tomioka Giyuu
   • Tomioka Giyuu
   • Iguro Obanai
   • Kaburamaru | Iguro Obanai's Snake
   • Kanroji Mitsuri
   • Shinazugawa Sanemi
   • Shinazugawa Genya
   • Tokitou Muichirou
   • Hashibira Inosuke
   • Romance
   • Cross-Posted on Wattpad
   • LGBTQ Themes
   • LGBTQ Character
   • Same-Sex Marriage
   • Marriage
   • Inspired by Married At First Sight (TV)
   • Married Sex
   • Alternate Universe - Modern Setting
   • Manga & Anime
   • Demon Slayers (Kimetsu no Yaiba)
   • Happy Ending
   • Slow Burn
   • Sort Of
   • Two Relationships
   • Explicit Sexual Content
   • Explicit Language
   • Kissing
   • Fluff
   • Comedy
   • Humor
   • Angst
   • not a lot
   • Fighting
   • they make up dw
   • Idiots in Love

   Summary

   ~OBAGIYUU: MARRIED AT FIRST SIGHT AU~

   Obanai Iguro didn't sign up for this. Well, technically he did - but only because his best friend (Sanemi) wouldn't shut up about it. Now he's about to marry a stranger on live television.

   Giyuu Tomioka didn't sign up for this either. His best friend (Mitsuri) signed him up while he was feeding cats.

   Two introverts.

   One reality show.

   Zero idea what they're doing.

   What could possibly go wrong? (Spoiler: everything. And maybe...something beautiful.)

   !! I do not own the show "Married at First Sight". Credits to the creators; it's amazing!

   Language:

   English

   Words:

   48,378

   Chapters:

   46/46

   Comments:

   33

   Kudos:

   90

   Bookmarks:

   17

   Hits:

   1,312