HOME
DASHBOARD
POWER SEARCH
WHAT'S NEW?
STREAMING SOON

Type in any movie or show to find where you can watch it, or type a person's name.

Onimai: I'm Now Your Sister!

Limited Series
2023
24m
TV-14
AT-X
1 Season
12 Episodes
Japanese
Animation, Comedy
User Score: 
7
WatchWatch on Crunchyroll Premium
Seen It:
All timeAll Time FavoriteLoved itLoved ItLiked itLiked ItJust OKJust O.K.Didnt LikeDidn't Really LikeHated itHated It
Haven't Seen It:
Want to seeI want to seeDont think soI don't think soI wouldnt like thisI wouldn't like this
Onimai Im Now Your Sister' Poster
When lazy, erotic-game loving Mahiro Oyama is transformed into a girl by his younger scientist sister's experiments, he becomes determined to change back, only to recognize that with his new opportunity, he may want to turn his life around.
Onimai Im Now Your Sister Poster

Onimai: I'm Now Your Sister!

TV-14
Limited Series
2023
24m
Japanese
AT-X
Animation, Comedy
1 Season
12 Episodes
Episode Guide
Seen It:
All timeAll Time FavoriteLoved itLoved ItLiked itLiked ItJust OKJust O.K.Didnt LikeDidn't Really LikeHated itHated It
Haven't Seen It:
Want to seeI want to seeDont think soI don't think soI wouldnt like thisI wouldn't like this
WatchWatch on Crunchyroll Premium
When lazy, erotic-game loving Mahiro Oyama is transformed into a girl by his younger scientist sister's experiments, he becomes determined to change back, only to recognize that with his new opportunity, he may want to turn his life around.
Rating
WATCHMODE
7
IMDB
Onimai: I'm Now Your Sister! (2023) on IMDb
CRITIC SCORE
n/a

Where to watch

USA Streaming Sources
 
Crunchyroll Premium Season 1

Buy

 
Amazon Season 1
 
Amazon Season 1
 
Windows Store Season 1
 
Windows Store Season 1
Available in 4 other countries.
Filter sources:    
See something wrong? Let us know

My Friends' Ratings

In order to see what your friends rated Onimai: I'm Now Your Sister!, you need a Watchmode account. It's free and takes just a minute. Create an account

My Progress 0%

0/12 episodes
Update Progress

Latest Episodes

All Episodes
Mahiros Future as a Sister
Mahiro's Future as a Sister
Season 1 Episode 12
March 23rd 2023
Mahiro Pretties Up
Mahiro Pretties Up
Season 1 Episode 11
March 16th 2023
Mahiro Ponders Boobs and Identity
Mahiro Ponders Boobs and Identity
Season 1 Episode 10
March 9th 2023
Mahiro Rings in the New Year
Mahiro Rings in the New Year
Season 1 Episode 9
March 2nd 2023
Mahiros First Girls Sleepover
Mahiro's First Girls Sleepover
Season 1 Episode 8
February 23rd 2023
Mahiros RolePlaying Game
Mahiro's Role-Playing Game
Season 1 Episode 7
February 16th 2023
Mahiro Goes Back to Middle School
Mahiro Goes Back to Middle School
Season 1 Episode 6
February 9th 2023
Mahiro Discovers Adventure and Social Gatherings
Mahiro Discovers Adventure and Social Gatherings
Season 1 Episode 5
February 2nd 2023
Mahiros New Friend
Mahiro's New Friend
Season 1 Episode 4
January 26th 2023
Mahiros Close Encounter
Mahiro's Close Encounter
Season 1 Episode 3
January 19th 2023

Cast

Full Cast & Crew
Marika Kouno
Mahiro Oyama (voice)
Kaori Ishihara
Mihari Oyama (voice)
Hisako Kanemoto
Kaede Hozuki (voice)
Minami Tsuda
Momiji Hozuki (voice)
Kana Yuuki
Asahi Ohka (voice)
Natsumi Hioka
Miyo Murosaki (voice)
Hiroaki Miura
Seme (voice)
Hisayoshi Suganuma
Reimi
Child - Brother (voice)
Emiri Suyama
Woman B (voice)
Yuuya Uchida
Leonardo (voice)
Erisa Kuon
Hairdresser (voice)
Kousuke Goto
Spabone (voice)
Enako
Nicolala (voice)
Yuri Ise
Student A (voice)
Rina Tsukishiro
Nodoka Fushimi (voice)
Misaki Watada
Minori Shiina (voice)
Kumiko Nakane
Waitress (voice)
Miyuu Takatsuki
Satsuki Takada (voice)
Directed By: Shingo Fujii (2 Episodes), Komawo Yukihiro (2 Episodes), + 7 more
Written By: Michiko Yokote (7 Episodes), Miharu Hirami (5 Episodes)

Featured Comments/Tips

Supriyo8799 says...
2 years ago
So many gender bent anime this season (Winter 2023) and this one was the best among them. While the genre is highly-controversial but if you put that aside this is just a "cute girls doing cute things" themed anime for the most. With entertaining characters and a catchy opening theme this became one of my top anime(s) of this year.
Like  -  Dislike  -  Comment  -  300
Show all comments (1)   Leave comment

Featured User Reviews

None of your fellow watchers have a review yet. Write Review

You might also like...

Streaming sources forKuma Kuma Kuma Bear
Kuma Kuma Kuma Bear
Streaming sources forAn Archdemons Dilemma How to Love Your Elf Bride
An Archdemon's Dilemma: How to Love Your Elf ...
Streaming sources forTrain to the End of the World
Train to the End of the World
Streaming sources forThe Many Sides of Voice Actor Radio
The Many Sides of Voice Actor Radio
Streaming sources forMigi Dali
Migi & Dali
Streaming sources forSugar Apple Fairy Tale
Sugar Apple Fairy Tale
Streaming sources forHandyman Saitou in another world
Handyman Saitou in another world
Streaming sources forKinokoinu Mushroom Pup
Kinokoinu: Mushroom Pup
Streaming sources forThe Day I Became a God
The Day I Became a God
Streaming sources forLycoris Recoil
Lycoris Recoil
Streaming sources forLove Live Superstar
Love Live! Superstar!!
Streaming sources forReMain
Re-Main
Streaming sources forPlay it Cool Guys
Play it Cool, Guys
Streaming sources forHow I Attended an AllGuys Mixer
How I Attended an All-Guy's Mixer
Streaming sources forThe Vexations of a ShutIn Vampire Princess
The Vexations of a Shut-In Vampire Princess
Streaming sources forA Terrified Teacher at Ghoul School
A Terrified Teacher at Ghoul School!
Streaming sources forIll Become a Villainess Who Goes Down in History
I'll Become a Villainess Who Goes Down in His...
Streaming sources forYATAGARASU The Raven Does Not Choose Its Master
YATAGARASU: The Raven Does Not Choose Its Mas...
Streaming sources forTONIKAWA Over the Moon for You
TONIKAWA: Over the Moon for You
Streaming sources forLadies Versus Butlers
Ladies Versus Butlers
Streaming sources forKonoSuba An Explosion on This Wonderful World
KonoSuba: An Explosion on This Wonderful Worl...
Streaming sources forYuri Is My Job
Yuri Is My Job!
Streaming sources forDeaimon Recipe for Happiness
Deaimon: Recipe for Happiness
Streaming sources forMitsuboshi Colors
Mitsuboshi Colors
Streaming sources forA Salad Bowl of Eccentrics
A Salad Bowl of Eccentrics

Watchmode

The site for finding what to watch.

Some stuff

Follow Watchmode

Follow Watchmode on Facebook Follow Watchmode on Twitter

Watchmode™ does not itself provide any video streaming service. The terms/conditions of using any streaming services accessible via links on Watchmode will be determined by those 3rd party streaming service providers (“Providers”). The names & logos associated with the Providers are the registered trademarks of those respective entities. We are not affiliated with, endorsed, administered or sponsored by any of those entities.

We do not condone the unauthorized streaming or submission of 3rd party intellectual property. We do our best to provide accurate information, however sometimes information on this site can be outdated/inaccurate. If you believe that your property has been submitted to/streamed on the Site without your authorization, or to report inaccurate information please contact us.

Copyright ©2019-2025 Watchmode - All rights reserved

Back to Top