Tag description Onii-chan wa Oshimai! (Onimai: I'm Now Your Sister!) is a comedy series about Mahiro Oyama, an otaku shut-in who gets turned into a cute girl by his little sister Mihari's drug. The story follows his daily life as a middle school girl full of fanservice and comedy.
note Main character: Mahiro Oyama (gender bender protagonist). Often includes lolicon, incest, and heavy fanservice themes.
