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.
0.0/10
6.8/10
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.
You can watch ONIMAI: I'm Now Your Sister! online on Amazon Prime Video
Track your shows, get notified about new episodes, and discover trends wherever you are.
