ONIMAI: I'm Now Your Sister!
Onii-chan wa Oshimai!
#10 Most Rated · Winter 2023#20 Most Popular · Winter 2023#50 Most Rated · 2023
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)
Format
TV
Episodes
12
Episode Duration
24 mins
Characters
View all 47
Staff
View all 514
Reviews
4 · sorted by votes
Status Distribution
Current
10%·6,819
Planning
27%·18,470
Paused
3%·2,081
Dropped
6%·4,243
Completed
53%·36,015
Score Distribution
102030405060708090100
Recommendations
See all 12 anime like ONIMAI: I'm Now Your Sister! →
Relations
AdaptationONIMAI: I'm Now Your Sister!MANGA- Side StoryOnii-chan wa Oshimai! Kaki Oroshi Comic
Gender Bending97%Age Regression94%Rehabilitation94%Primarily Female Cast94%Cute Girls Doing Cute Things93%Primarily Teen Cast87%Coming of Age87%Female Protagonist87%Transgender85%Hikikomori83%Family Life82%Otaku Culture80%School72%LGBTQ+ Themes68%Gyaru67%Tomboy64%Yuri60%Found Family60%Nudity57%Chibi53%Crossdressing50%Shounen20%
Frequently asked questions
How many episodes does ONIMAI: I'm Now Your Sister! have?
ONIMAI: I'm Now Your Sister! has 12 episodes.
Is ONIMAI: I'm Now Your Sister! finished?
As of now, ONIMAI: I'm Now Your Sister! has finished.
When did ONIMAI: I'm Now Your Sister! air?
ONIMAI: I'm Now Your Sister! aired from January 5, 2023 to March 23, 2023.
What kind of show is ONIMAI: I'm Now Your Sister!?
ONIMAI: I'm Now Your Sister! is a TV series with episodes around 24 minutes long, originally from Japan.
When did ONIMAI: I'm Now Your Sister! premiere?
ONIMAI: I'm Now Your Sister! premiered in Winter 2023.