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ONIMAI: I'm Now Your Sister!

お兄ちゃんはおしまい! · Onii-chan wa Oshimai! · Onii-chan Is Done For!
MangaOngoing2017SeinenEnglish availablefree to read
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ONIMAI: I'm Now Your Sister! is an ongoing manga by Nekotoufu. Read it free on MangaPulse and MangaDex, or officially on Kodansha, pixiv, Amazon, BookWalker.

GenderswapComedySchool LifeSlice of LifeWeb Comic

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 far as Mahiro's concerned! But Mihari is as determined to study him as he is determined to go back to his shut-in, game-playing life, and one thing's for sure...life is going to get a whole lot weirder from here on out!

5th place of Tsugi Manga Awards, Category Webmanga - Retail: (Direct Retail From the Mangaka) ![](https://i.imgur.com/0e9KPgq.png) Official Melon Books ![](https://i.imgur.com/t9hf4kQ.png) Official Toranoana ![](https://i.imgur.com/lGJEbPa.png) Official DLSite (jp)

Type
Manga
Status
Ongoing
Published
2017
Author
Nekotoufu
Demographic
Seinen
Original language
Japanese
Rating
★ 9.15 on MangaDex
Followers
57k
Translations
Czech, German, English, Spanish, Spanish (LatAm), French +11

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FAQ

quick answers

Where can I read ONIMAI: I'm Now Your Sister!?

ONIMAI: I'm Now Your Sister! Read it free on MangaPulse and MangaDex, or officially on Kodansha, pixiv, Amazon, BookWalker. WatchDex lists every free reader and official store for it.

Is ONIMAI: I'm Now Your Sister! free to read?

Yes — ONIMAI: I'm Now Your Sister! has chapters you can read free on MangaPulse and MangaDex (Czech, German, English, Spanish, Spanish (LatAm)).

Is ONIMAI: I'm Now Your Sister! finished?

ONIMAI: I'm Now Your Sister! is ongoing.

Who wrote ONIMAI: I'm Now Your Sister!?

ONIMAI: I'm Now Your Sister! is written by Nekotoufu.