attributes.availableTranslatedLanguages: pt-br en it hu fr pl ru id es es-la
attributes.contentRating: safe
attributes.createdAt: 2019-03-04T05:30:23+00:00
attributes.latestUploadedChapter: 64d9de59-e9c1-4ad2-8be5-26f7cd2ed8d9
attributes.originalLanguage: ja
attributes.publicationDemographic: seinen
attributes.state: published
attributes.status: ongoing
attributes.group: theme
attributes.en: Genderswap
attributes.id: 2bd2e8d0-f146-434a-9b51-fc9ff2c5fe6a
attributes.type: tag
attributes.group: genre
attributes.en: Comedy
attributes.id: 4d32cc48-9f00-4cca-9b5a-a839f0764984
attributes.type: tag
attributes.group: theme
attributes.en: School Life
attributes.id: caaa44eb-cd40-4177-b930-79d3ef2afe87
attributes.type: tag
attributes.group: format
attributes.en: Web Comic
attributes.id: e197df38-d0e7-43b5-9b09-2842d0c326dd
attributes.type: tag
attributes.group: genre
attributes.en: Slice of Life
attributes.id: e5301a23-ebd9-49dd-a0cb-2add944c7fe9
attributes.type: tag
attributes.updatedAt: 2022-02-25T14:13:38+00:00
attributes.altTitles: ja-ro Oniichan ha Oshimai!
attributes.altTitles: de Ab sofort Schwester!
attributes.altTitles: en ONIMAI: I'm Now Your Sister!
attributes.altTitles: ja お兄ちゃんはおしまい!
attributes.description: de [Official German](https://www.manga-jam-session.com/werke-1/ab-sofort-schwester/)
attributes.description: en 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://www.melonbooks.co.jp/circle/index.php?circle_id=3753)  
  ![](https://i.imgur.com/t9hf4kQ.png) [Official Toranoana](https://ec.toranoana.shop/tora/ec/cot/circle/2UPA116P847KdC6Rd687/all/)  
  ![](https://i.imgur.com/lGJEbPa.png) [Official DLSite](https://www.dlsite.com/home/circle/profile/=/maker_id/RG40614.html) (jp)
attributes.description: pt-br Oyama Mahiro, um dia acordou como uma garota graças a sua irmã que colocou uma droga em sua comida, após ter visto eroges a noite toda. Um mangá de comédia sobre um garoto que se transformou em uma mulher.
attributes.links: al 100080
attributes.links: amz https://www.amazon.co.jp/dp/B07DXHPJFV
attributes.links: ap onii-chan-wa-oshimai
attributes.links: bw series/166038
attributes.links: ebj https://ebookjapan.yahoo.co.jp/books/462979
attributes.links: engtl https://kodansha.us/series/onimai-im-now-your-sister/
attributes.links: kt 40391
attributes.links: mal 112592
attributes.links: mu 146713
attributes.links: raw https://www.pixiv.net/user/159912/series/12
attributes.title: en Onii-chan Is Done For!