ONIMAI: I'm Now Your Sister!
お兄ちゃんはおしまい！
Ecchi
Slice of Life
Comedy
Synopsis
Mahiro Oyama, a shut-in otaku living off his genius younger sister Mihari, wakes up one morning transformed into a middle-school girl — the result of one of Mihari's experimental drugs. Forced into school life in a body he does not recognize, Mahiro stumbles through making friends, navigating social expectations, and adjusting to a daily routine he abandoned years ago, all while Mihari observes her brother-turned-sister as a live research subject.
FormatAnime
Episodes12
Duration23 min
StatusFinished Airing
SeasonWinter 2023
Studio
Studio Bind
FormatAnime
Episodes12
Duration23 min
StatusFinished Airing
SeasonWinter 2023
Studio
Studio Bind
ONIMAI: I'm Now Your Sister!
お兄ちゃんはおしまい！
Ecchi
Slice of Life
Comedy
Mahiro Oyama, a shut-in otaku living off his genius younger sister Mihari, wakes up one morning transformed into a middle-school girl — the result of one of Mihari's experimental drugs. Forced into school life in a body he does not recognize, Mahiro stumbles through making friends, navigating social expectations, and adjusting to a daily routine he abandoned years ago, all while Mihari observes her brother-turned-sister as a live research subject.