JapaneseongoingAb sofort Schwester! • お兄ちゃんはおしまい! • ONIMAI: I'm Now Your Sister! • Мій братик вже не братик • Мой братик теперь не братик! • 别当欧尼酱了！ • 不当哥哥了！ • Onii-chan wa Oshimai! • Onii-chan ha Oshimai! • Oniichan wa Oshimai! • Onii-chan is done for • Onii-chan wa Oshimai • Onii-Chan Wa Oshimai • Onii-chan wa Oshimai お兄ちゃんはおしまい • Onii-Chan wa Oshimai • Onii-chan Is Done For! • Onii-Chan Is Done For • Onimai: I'M Now Your Sister!
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)  [Official Melon Books](https://www.melonbooks.co.jp/circle/index.php?circle_id=3753)  [Official Toranoana](https://ec.toranoana.shop/tora/ec/cot/circle/2UPA116P847KdC6Rd687/all/)  [Official DLSite](https://www.dlsite.com/home/circle/profile/=/maker_id/RG40614.html) (jp)
You are reading Onii-chan Is Done For! (Alternative Titles: Ab sofort Schwester! • お兄ちゃんはおしまい! • ONIMAI: I'm Now Your Sister! • Мій братик вже не братик • Мой братик теперь не братик! • 别当欧尼酱了！ • 不当哥哥了！ • Onii-chan wa Oshimai! • Onii-chan ha Oshimai! • Oniichan wa Oshimai! • Onii-chan is done for • Onii-chan wa Oshimai • Onii-Chan Wa Oshimai • Onii-chan wa Oshimai お兄ちゃんはおしまい • Onii-Chan wa Oshimai • Onii-chan Is Done For! • Onii-Chan Is Done For • Onimai: I'M Now Your Sister!) manga online for free on MangaBall.
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