Oniichan wa Oshimai! (Onimai: I'm Now Your Sister!)

Self-professed "home security guard" Mahiro Oyama has not left his home in years, secluding himself in his room playing erotic visual novels. This depraved lifestyle causes his prodigious sister, Mihari, to worry about his well-being. In hopes of solving this problem, she devises a plan to rehabilitate him back to normalcy. The first part of Mihari's plan is to concoct a medicine that changes her brother's biological constitution into a bona fide female, much to Mahiro's vehement dismay. Stuck in this predicament, Mahiro has no choice but to live out his life as a cute girl until the effect wears off—if it ever does. [Written by MAL Rewrite]

Imported from Japan and.

Onimai I’m Now Your Sister (Onii-chan wa Oshimai) Blu-ray Box Vol.1 & 2

・ Special booklet. Text : Japanese. ・ Special box. Contents : Episode 7 to 12. Release Date : June.21.2023. Our Products are 100% Authentic. Language

Onimai I'm Now Your Sister Oniichan wa Oshimai Blu-ray Box Vol.2 Booklet Japan

Characters appearing in ONIMAI: I'm Now Your Sister! Manga

Onimai: I'm Now Your Sister! - Part 2 Blu-ray (Oniichan wa Oshimai!) (Japan)

ONIMAI: I'm Now Your Sister! New Clip and Release Date Announced! - Serpentor's Lair

Arquivos Onii-chan wa Oshimai! (ONIMAI: I'm Now Your Sister! ) - IntoxiAnime

Onimai: I'm Now Your Sister! ( Oniichan wa Oshimai! ) Episode 1 Review

Doujinshi - Onimai / Oyama Mihari & Oyama Mahiro (おにまい(物理)) / Seishin Denpa SOS

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Onimai Oniichan wa Oshimai I'm Now Your Sister Vol.1-7 Japanese Comic Books

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Oniichan wa Oshimai! / Onimai: I'm Now Your Sister! | Essential T-Shirt

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Oniichan wa Oshimai! Onimai: I'm Now Your Sister! | Poster

Oniichan wa Oshimai! (Onimai: I'm Now Your Sister!)

ONIMAI: I'm Now Your Sister! TV Anime Sets January 2023 Release with 1st Trailer - Crunchyroll News