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Poster for ONIMAI: I'm Now Your Sister!
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ONIMAI: I'm Now Your Sister!

Original title: お兄ちゃんはおしまい！

★ 7.4 TMDB Rating · 70 votes

When lazy, erotic-game loving Mahiro Oyama 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 around.

Seasons
1
Episodes
12
Episode length
~24m
First aired
Jan 5, 2023
Networks
AT-X
Original language
Japanese
Origin
Japan

Cast of ONIMAI: I'm Now Your Sister!

  • Portrait of Marika Kouno

    Marika Kouno

    Mahiro Oyama (voice)

  • Portrait of Kaori Ishihara

    Kaori Ishihara

    Mihari Oyama (voice)

  • Portrait of Hisako Kanemoto

    Hisako Kanemoto

    Kaede Hozuki (voice)

  • Portrait of Minami Tsuda

    Minami Tsuda

    Momiji Hozuki (voice)

  • Portrait of Kana Yuuki

    Kana Yuuki

    Asahi Ohka (voice)

  • Portrait of Natsumi Hioka

    Natsumi Hioka

    Miyo Murosaki (voice)

Where to Stream ONIMAI: I'm Now Your Sister! by Country

United States
Streaming on CrunchyrollRent or buy on Amazon Video
United Kingdom
Streaming on Crunchyroll
India
No streaming offers listed right now
Canada
Streaming on Crunchyroll
Australia
Streaming on Crunchyroll

Availability data from JustWatch. Catalogues change often, so check the service before you press play.

Seasons

  • Poster for Season 1 of ONIMAI: I'm Now Your Sister!

    Season 1

    Jan 5, 2023

    12 episodes

ONIMAI: I'm Now Your Sister! Trailer

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