Overview
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 & Episodes
Season 1
Key Information
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Cast & Crew
Marika Kouno
Mahiro Oyama (voice)
Kaori Ishihara
Mihari Oyama (voice)
Hisako Kanemoto
Kaede Hozuki (voice)
Minami Tsuda
Momiji Hozuki (voice)
Kana Yuuki
Asahi Ohka (voice)
Natsumi Hioka
Miyo Murosaki (voice)
Yoshie Saito
Tomoya Kiba (voice)
Misaki Watada
Minori Shiina (voice)
Miyuu Takatsuki
Satsuki Takada (voice)
Rena Aoshima
Yuta Sakurada (voice)
Rika Abe
Minato Senkawa (voice)
Emiri Suyama
Clerk (voice)
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Frequently Asked Questions
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...
ONIMAI: I'm Now Your Sister! has 1 season with 12 episodes.
ONIMAI: I'm Now Your Sister! premiered on January 5, 2023.
No, ONIMAI: I'm Now Your Sister! has ended. The final episode aired on March 23, 2023.
ONIMAI: I'm Now Your Sister! originally aired on AT-X. Check your local streaming services for availability.
ONIMAI: I'm Now Your Sister! has a rating of 7.4/10 based on user reviews.
ONIMAI: I'm Now Your Sister! is classified as Animation, Comedy.