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ONIMAI: I'm Now Your Sister! (2023)
Official Trailer [Subtitled]
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.
20 cast members
Marika Kouno
Kaori Ishihara
Hisako Kanemoto
Minami Tsuda
Kana Yuuki
Natsumi Hioka
Emiri Suyama
Erisa Kuon
Yoshie Saito
Rina Tsukishiro