Mihari Oyama
Age: 15-16
Mahiro's little sister. A genius scientist that skipped grades and is now attending college. She is responsible for drugging Mahiro, turning him into a young girl.
Appears In
Onimai Fukudoku Hon: Mihari no Kenkyuushitsu
Onii-chan wa Oshimai! Kaki Oroshi Comic
Onii-chan wa Oshimai! 7-kan: Tokusouban Shousasshi
ONIMAI: I'm Now Your Sister!
Onii-chan wa Oshimai! Tanjoubi
Onii-chan wa Oshimai!: Koushiki Anthology Comic
Onii-chan wa Oshimai! Tokubetsu-hen
ONIMAI: I'm Now Your Sister!
Voice Actors
Kaori Ishihara
Yoshie Saitou