Former shut-in Mahiro Oyama has now fully embraced the junior high school girl life. As his circle of online friends expands, he might even get in-game married?! Throw in a little snooping into Kaede's life as a college freshman and a little sex appeal to manipulate the boys at the arcade... All this and more, as Mahiro discovers the joy of expanding his horizons through forming connections with his friends in volume 10!
Nekotofu/Ichijinsha Inc.
| Series Title | ONIMAI: I'm Now Your Sister! |
|---|---|
| Japanese Title | お兄ちゃんはおしまい! (Oniichan wa Oshimai!) |
| Alternative Title | Onii-chan is Done For |
| Writer | Nekotofu |
| Artist | Nekotofu |
| Publisher | Kodansha |
| Genre | Manga ,Comedy ,Gender Bender ,Sci-fi ,Seinen ,Slice of Life ,Family |
| Available since | January 27, 2026 (12:00 AM) PT / January 27, 2026 (05:00 PM) JST |
| Page count | 171pages (*Note) |
US $10.99
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