ONIMAI: I'm Now Your Sister!

Season 1

When a lazy, erotic-game loving Otaku 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.

Where to Watch Season 1

12 Episodes

Mahiro's Confusing New Body
E1
Mahiro's Confusing New BodyEpisode 1
Mahiro's Time of the Month
E2
Mahiro's Time of the MonthEpisode 2
Mahiro's Close Encounter
E3
Mahiro's Close EncounterEpisode 3
Mahiro's New Friend
E4
Mahiro's New FriendEpisode 4
Mahiro Discovers Adventure and Social Gatherings
E5
Mahiro Discovers Adventure and Social GatheringsEpisode 5
Mahiro Goes Back to Middle School
E6
Mahiro Goes Back to Middle SchoolEpisode 6
Mahiro's Role-Playing Game
E7
Mahiro's Role-Playing GameEpisode 7
Mahiro's First Girls Sleepover
E8
Mahiro's First Girls SleepoverEpisode 8
Mahiro Rings in the New Year
E9
Mahiro Rings in the New YearEpisode 9
Mahiro Ponders Boobs and Identity
E10
Mahiro Ponders Boobs and IdentityEpisode 10
Mahiro Pretties Up
E11
Mahiro Pretties UpEpisode 11
Mahiro's Future as a Sister
E12
Mahiro's Future as a SisterEpisode 12