Popularity #1508
Oniichan wa Oshimai!
お兄ちゃんはおしまい！
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]
Score: 7.65
Ranked #1456
Genre
Comedy,Source
MangaFormat
TVSeason
winterEpisodes
12Episodes Duration
23 min per epAired on
Jan 5, 2023 to Mar 23, 2023Status
Finished AiringMemebers
170454Favorites
2445
Characters & Voice Actors
Oyama, Mihari
Main
Ishihara, Kaori
Japanese
Oyama, Mahiro
Main
Kouno, Marika
Japanese
Fujimi, Nemu
Supporting
Sakurai, Mia
Japanese
Fushimi, Nodoka
Supporting
Tsukishiro, Rina
Japanese
Haijima, Takeshi
Supporting
Uchimura, Fumiko
Japanese
Hozuki, Momiji
Supporting
Tsuda, Minami
Japanese
Opening Themes
"Iden Tei Tei Meltdown (アイデン貞貞メルトダウン)" by Enako feat. P-maru-sama. (P丸様。)
Ending Themes
"Himegoto * Crisisters (ひめごと＊クライシスターズ)" by Onimai Sisters
Trailer
