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ONIMAI: I'm Now Your Sister!

お兄ちゃんはおしまい！
TMDb7.5IMDbView on IMDb ↗2023-01-05· 24 min / ep· 1 season · 12 episodes
AnimationComedy

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.

Top cast

Below are the streaming services currently carrying the TV show “ONIMAI: I'm Now Your Sister!” in Canada, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in Canada can differ from other countries.

Where to watch ONIMAI: I'm Now Your Sister! in Canada

Netflix
Netflix
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OSN+
OSN+
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Amazon Prime Video
Amazon Prime Video
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Shahid
Shahid
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Watch It
Watch It
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TOD
TOD
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Disney+
Disney+
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Apple TV+
Apple TV+
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Not currently available on the supported providers in Canada.

Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 1 Sept 2026.

Where to watch ONIMAI: I'm Now Your Sister! by country