Watch Onii-chan wa Oshimai!
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Mahiro Oyama was just a normal erotic-game loving dude…until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried…
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Format Manga Status Airing Score 77/100 Source Original Country Japan Comedy · Slice of Life Gender Bending · Cute Girls Doing Cute Things · Iyashikei · Primarily Female Cast · Transgender · School · Rehabilitation · Hikikomori · Age Regression · Crossdressing Onii-chan wa Oshimai! Koushiki Anthology Comic (Spin-off) · Onii-chan wa Oshimai! (Adaptation) · Onii-chan wa Oshimai! Tokubetsu-hen (Side Story) · Onii-chan wa Oshimai! Tanjoubi (Side Story) · Onii-chan wa Oshimai! 7-kan: Tokusouban Shousasshi (Side Story) · Onimai Fukudoku Hon: Mihari no Kenkyuushitsu (Side Story) · Minato-kun wa Oshimai? (Side Story)Ookami Shounen wa Kyou mo Uso wo Kasaneru · Mendokusagari Danshi ga Asa Okitara Onnanoko ni Natteita Hanashi · Koisuru (Otome) no Tsukurikata · Joshi Shougakusei Hajimemashita · Mememori-kun ni wa Kanawanai · Youjo Life! · Ore ga Watashi ni Naru made Mahiro Oyama · Mihari Oyama · Kaede Hozuki (Supporting) · Miyo Murosaki (Supporting) · Momiji Hozuki (Supporting)