Onimai: I'm Now Your Sister! poster

Onimai: I'm Now Your Sister! (2023)

Animation · Comedy

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.

IMDb rating: 6.7 (906 votes)
Seasons: 1
Streaming (US): Crunchyroll
Language: JA
Type: Mini-series

Browse seasons by rating shape → Open in Rising Shows app → View on IMDb

Ratings refreshed Jul 3, 2026 · 1 season indexed

Cast

Seasons

Season 1 (2023)

6.95 avg 12 episodes 6.7 → 7.3

Season 1 episodes — IMDb ratings
#	Title	Rating	Votes
1	Mahiro's Confusing New Body	6.7	134
2	Mahiro's Time of the Month	6.9	100
3	Mahiro's Close Encounter	7.0	96
4	Mahiro's New Friend	6.9	100
5	Mahiro Discovers Adventure and Social Gatherings	6.8	87
6	Mahiro Goes Back to Middle School	6.8	90
7	Mahiro's Role-Playing Game	7.0	91
8	Mahiro's First Girls Sleepover	6.8	86
9	Mahiro Rings in the New Year	7.5	106
10	Mahiro Ponders Boobs and Identity	6.9	88
11	Mahiro Pretties Up	6.8	81
12	Mahiro's Future as a Sister	7.3	101