ONIMAI: I'm Now Your Sister!

Onii-chan wa Oshimai!

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Comedy · Slice of Life

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 out one of her new experiments on him…with a disastrous outcome, as… Synopsis via AniList

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