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1. Onimai! Highschool era by FalseMimicry

   Fandoms: お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga), お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Anime), ONIMAI:  

   • Mature
   • Creator Chose Not To Use Archive Warnings, No Archive Warnings Apply
   • F/F
   • Work in Progress

   16 Nov 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • No Archive Warnings Apply
   • Hozuki Momiji/Oyama Mahiro
   • Hozuki Kaede/Oyama Mihari
   • Murosaki Miyo/Ouka Asahi
   • Hozuki Momiji
   • Hozuki Kaede
   • Oyama Mahiro
   • Oyama Mihari
   • Murosaki Miyo
   • Ouka Asahi
   • Fluff and Angst
   • Light Angst
   • Developing Relationship
   • Established Relationship
   • Angst and Feels
   • Romance
   • Slow Burn
   • Multiple Pairings
   • Dialogue Heavy
   • Trans Female Character
   • Trans
   • Trans Character
   • i keep writing this while almost passed out
   • i forget my own chapters immediately
   • What canon atp?

   Summary

   after 3 years of being a girl with seemingly no sign of changing back, Mahiro is about to be entering Highschool, but this time as a girl, except who they are right now doesn't exist. Momiji is also grasping with new feelings that Mahiro causes her to feel, will she figure it out?

   Language:

   English

   Words:

   17,526

   Chapters:

   7/?

   Comments:

   12

   Kudos:

   38

   Bookmarks:

   6

   Hits:

   843