Oniichan wa Oshimai!
Alternative Titles
Synonyms
Onimai
Onii-chan is Done For
Japanese
お兄ちゃんはおしまい！
English
Onimai: I'm Now Your Sister!
Information
Type
TVAired
Jan 5, 2023 to Mar 23, 2023
Episodes
12
Duration
23 min per ep
Season
winter 2023Broadcast
Thursdays at 23:30 (JST)
Studios
Studio Bind
Status
Finished Airing
Source
Manga
Rating
PG-13 - Teens 13 or older
Genres
ComedyDemographics
ShounenStatistics
Rank
1372
Score
7.66
Scored by
77676
Popularity
1517
Members
163896
Favorites
2322
External Links
Synopsis
Self-professed "home security guard" Mahiro Oyama has not left his home in years, secluding himself in his room playing erotic visual novels. This depraved lifestyle causes his prodigious sister, Mihari, to worry about his well-being. In hopes of solving this problem, she devises a plan to rehabilitate him back to normalcy. The first part of Mihari's plan is to concoct a medicine that changes her brother's biological constitution into a bona fide female, much to Mahiro's vehement dismay. Stuck in this predicament, Mahiro has no choice but to live out his life as a cute girl until the effect wears off—if it ever does. [Written by MAL Rewrite]
Background
Oniichan wa Oshimai! was released on Blu-ray in two boxes from April 19, 2023, to June 21, 2023.