- Country: Japan
- Genres: Animation, Comedy
- Release: 2023-01-05
- Director: N/A
- Writers: Nekotoufu
- Language: Japanese
- Stars: Marika Kôno , Kaori Ishihara , Hisako Kanemoto , Minami Tsuda , Kana Yûki , Natsumi Hioka , Misaki Watada , Rika Abe , Rena Aoshima , Miyuu Takatsuki
- Runtime: min
- Awards: 3 nominations
- AKA: Onimai: Ab sofort Schwester! (Germany) , Onimai: I'm Now Your Sister! (Australia) , 不當哥哥了! (Taiwan) , Oniichan wa Oshimai! (Italy) , Onimai: I'm Now Your Sister! (United States of America) , Oniichan wa Oshimai! , お兄ちゃんはおしまい! (Japan) , Không Làm Anh Trai Nữa! (Vietnam) , Onimai: I'm Now Your Sister!
- Plot:
When a lazy, erotic-game loving Otaku is transformed into a girl by his younger scientist sister’s experiments, he becomes determined to change back, only to recognize that with his new opportunity, he may want to turn his life ar…
- IMDB:tt21929424
Onimai: I’m Now Your Sister! Cast · · · ALL
Kaori Ishihara
Mihari Oyama (voice)
Hisako Kanemoto
Kaede Hozuki (voice)
Kana Yuuki
Asahi Ohka (voice)
Natsumi Hioka
Miyo Murosaki (voice)