ONIMAI: I'm Now Your Sister!

Alt title: Onii-chan wa Oshimai!

TV (5+ eps)
2023 - ?
Winter 2023
3.693 out of 5 from 391 votes
Rank #2,932

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!

Source: Kodansha

my anime:

User Stats

2,347 users are tracking this. Log in to see stats.

If you like this anime, you might like...

Reviews

Share your first impressions

Related manga

Characters

See all characters

Staff

See all staff

Discussions

Custom lists

See all custom lists