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]

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

ONIMAI: I'm Now Your Sister! Anime About Turning Into a Girl Shares Trailer

First Look: ONIMAI: I'm Now Your Sister!

Manga Mogura RE on X: Onimai: I'm now your Sister Vol.7 regular & special edition by Nekotoufu Series has 1 million copies (including comic anthology & digital) in circulation Tv Anime starting

Onimai: I'm Now Your Sister! (TV Series 2023) - IMDb

Onimai: I'm Now Your Sister! Wallpapers - Wallpaper Cave

ONIMAI: I'm Now Your Sister! 2 (Oniichan wa Oshimai!) - Manga - BOOK☆WALKER

Lmao - Before HRT I was dealing with head pain everyday. Wi Now, I get breast growth pain instead. Wy Seurce: Oniichan wa Oshimai! (Gnimai: Mow Your Sister!) - iFunny Brazil

Essential T-Shirt

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

Art Board Print

Onimai Onimai Oniichan wa Oshimai! Onimai I'm Now Your Sister! | Art Board Print

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

BOOK☆WALKER Global:ONIMAI: I'm Now Your Sister! 5 (Oniichan wa Oshimai!) - Manga - BOOK☆WALKER

ONIMAI: I'm Now Your Sister! / Onii-chan wa Oshimai! - Other Anime - AN Forums

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