ONIMAI: I'm Now Your Sister! is a tV series anime that premiered in winter 2023, produced by Studio Bind.

About the production: the story comes from a manga, there are 12 episodes of about 24 minutes and its current status is "finished".

Its main genres are comedy, ecchi and slice of life, with themes such as Gender Bending, Primarily Female Cast, Rehabilitation and Cute Girls Doing Cute Things.

On AniList, ONIMAI: I'm Now Your Sister! has an average score of 75%, a very good score, and appears on 76,177 users' lists.

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 USA)

Official synopsis from AniList.