Onii-chan wa Oshimai!

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)

Rankings

#51 highest rated of 2023
#61 most popular of 2023
#11 highest rated of WINTER 2023
#20 most popular of WINTER 2023

Data

Format
TV
Episodes
12
Episode Duration
24 minutes
Status
FINISHED
Start Date
Sun Feb 05 2023
End Date
Sun Apr 23 2023
Season
WINTER 2023
Average Score
75%
Mean Score
75%
Popularity
52974
Favourites
2267
Studios
Studio Bind
EGG FIRM
Producers
Toho
Hakuhodo DY Music & Pictures
Ichijinsha
AT-X
BS11
Pia
Pony Canyon
Movic
TOKYO MX
Bit Grooove Promotion
Source
MANGA
Genres
Comedy, Ecchi, Slice of Life
Romaji
Onii-chan wa Oshimai!
English
ONIMAI: I'm Now Your Sister!
Native
お兄ちゃんはおしまい！
Synonyms
Onii-chan is Done For!
ONIMAI: Sekarang Aku Kakak Perempuanmu!
อวสานพี่ชาย กลายเป็นพี่สาว
不當哥哥了！
Я стал сестрой!
ONIMAI: Ab sofort Schwester!