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1. The Trials and Tribulations of Mahiro Oyama by ryuko199

   Fandoms: お兄ちゃんはおしまい! | Oniichan wa Oshimai! (Manga), ONIMAI: I'm Now Your Sister, Onimai - Fandom  

   • Mature
   • Creator Chose Not To Use Archive Warnings
   • F/F, F/M
   • Work in Progress

   21 Aug 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Hozuki Momiji/Oyama Mahiro
   • Hozuki Kaede/Oyama Mihari
   • Ouka Asahi/Murosaki Miyo
   • Sakurada Yuta/Senkawa Minato
   • Oyama Mahiro
   • Hozuki Momiji
   • Oyama Mihari
   • Hozuki Kaede
   • Ouka Asahi
   • Original Trans Character(s)
   • Tenkawa Nayuta
   • Azuma Chitose
   • Senkawa Minato
   • Oyama Matsuri
   • Sakurada Yuuta
   • Murosaki Miyo
   • Trans Female Character
   • Drama & Romance
   • Urination
   • Menstruation
   • Implied/Referenced Suicide
   • Gender Dysphoria
   • Mental Health Issues
   • Intrusive Thoughts of Self-Harm
   • Transphobia

   Summary

   It's the last year of middle school, high school entrance exams loom on the horizon... and a new problem has emerged! Specifically, Mahiro's lack of legal documentation. Unlike in middle school, Mihari and Chitose don't have the connections needed to get Mahiro into the entrance exams for the high school without proper ID. While nobody's happy when this fact is discovered, Mahiro least of all perhaps, it does provide a certain someone with the motivation to overcome their fears and step out of their comfort zone.

   Language:

   English

   Words:

   76,212

   Chapters:

   20/?

   Comments:

   369

   Kudos:

   323

   Bookmarks:

   48

   Hits:

   12,061