ONIMAI: I'm Now Your Sister!
20231 season · 12 epEndedTV-14
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.
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Availability shown for United States.
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3![Promotional Video [Subtitled]](https://img.youtube.com/vi/pvnrSpb109U/hqdefault.jpg)
Promotional Video [Subtitled]
Trailer
Cast
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
Child - Sister (voice)
Misaki Watada
Minori Shiina (voice)
Miyuu Takatsuki
Satsuki Takada (voice)
Rena Aoshima
Yuta Sakurada (voice)
Rika Abe
Minato Senkawa (voice)
Emiri Suyama
Woman B (voice)
Erisa Kuon
Woman B (voice)
Rina Tsukishiro
Nodoka Fushimi (voice)
Sayako Tojo
Mai Yasaka (voice)
Rin Mizuki
Mari Nishinomiya (voice)
Mia Sakurai
Nemu Fujimi (voice)
Kumiko Nakane
Watch Stand (voice)
Mitsuki Nakamura
Announcer (voice)
Karin Oda
Miyako Nagase (voice)
Episodes
Ended
1. Mahiro's Confusing New Body
Jan 5, 2023 7.3
2. Mahiro's Time of the Month
Jan 12, 2023 5.0
3. Mahiro's Close Encounter
Jan 19, 2023 3.8
4. Mahiro's New Friend
Jan 26, 2023 6.0
5. Mahiro Discovers Adventure and Social Gatherings
Feb 2, 2023 6.5
6. Mahiro Goes Back to Middle School
Feb 9, 2023 6.5
7. Mahiro's Role-Playing Game
Feb 16, 2023 6.5
8. Mahiro's First Girls Sleepover
Feb 23, 2023 6.5
9. Mahiro Rings in the New Year
Mar 2, 2023 3.8
10. Mahiro Ponders Boobs and Identity
Mar 9, 2023 6.5
11. Mahiro Pretties Up
Mar 16, 2023 6.0
12. Mahiro's Future as a Sister
Mar 23, 2023 6.5
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