Onimai: I'm Now Your Sister! Poster

Onimai: I'm Now Your Sister!

PG-13
HD
12
12
TV 23m
Watch now
Watching On-Hold Plan to Watch Dropped Completed
Self-professed "home security guard" Mahiro Oyama has not left his home in years, secluding himself in his room playing erotic visual novels. This depraved lifestyle causes his prodigious sister, Mihari, to worry about his well-being. In hopes of solving this problem, she devises a plan to rehabilitate him back to normalcy. The first part of Mihari's plan is to concoct a medicine that changes her brother's biological constitution into a bona fide female, much to Mahiro's vehement dismay. Stuck in this predicament, Mahiro has no choice but to live out his life as a cute girl until the effect wears off—if it ever does.
HiAnime is the best site to watch Onimai: I'm Now Your Sister! SUB online, or you can even watch Onimai: I'm Now Your Sister! DUB in HD quality. You can also find Studio Bind anime on HiAnime website.
Overview:
Self-professed "home security guard" Mahiro Oyama has not left his home in years, secluding himself in his room playing erotic visual novels. This depraved lifestyle causes his prodigious sister, Mihari, to worry about his well-being. In hopes of solving this problem, she devises a plan to rehabilitate him back to normalcy. The first part of Mihari's plan is to concoct a medicine that changes her brother's biological constitution into a bona fide female, much to Mahiro's vehement dismay. Stuck in this predicament, Mahiro has no choice but to live out his life as a cute girl until the effect wears off—if it ever does.
Japanese: お兄ちゃんはおしまい！
Synonyms: Oniichan wa Oshimai!
Aired: Jan 5, 2023 to Mar 23, 2023
Duration: 23m
Status: Finished Airing
MAL Score: 7.74
Genres: Shounen Comedy School CGDCT Magical Sex Shift
Studios: Studio Bind
Producers: TOHO animation Egg Firm Ichijinsha
HiAnime is the best site to watch Onimai: I'm Now Your Sister! SUB online.

More Seasons

Season 1
Season 1 (Uncensored)

Characters & Voice Actors

View more
Mahiro Oyama

Mahiro Oyama

Main
Marika Kouno

Marika Kouno

Japanese
Mahiro Oyama

Mahiro Oyama

Main
Reimi

Reimi

Japanese
Mihari Oyama

Mihari Oyama

Main
Kaori Ishihara

Kaori Ishihara

Japanese
Mihari Oyama

Mihari Oyama

Main
Yoshie Saitou

Yoshie Saitou

Japanese
Kaede Hozuki

Kaede Hozuki

Supporting
Hisako Kanemoto

Hisako Kanemoto

Japanese
Miyo Murosaki

Miyo Murosaki

Supporting
Natsumi Hioka

Natsumi Hioka

Japanese

Recommended For You

12
12
12
Skeleton Knight in Another World Season 2

Skeleton Knight in Another World Season 2

TV 24m
26
26
Major S3

Major S3

TV 25m
24
24
24
Shirobako

Shirobako

TV 24m
13
13
13
Danganronpa: The Animation

Danganronpa: The Animation

TV 24m
1
1
Cross Road

Cross Road

SPECIAL 2m
12
12
12
Mobile Suit Gundam: The Witch from Mercury

Mobile Suit Gundam: The Witch from Mercury

TV 23m
291
291
291
Dragon Ball Z

Dragon Ball Z

TV 24m
21
51
51
Beyblade Burst Evolution

Beyblade Burst Evolution

TV 24m
293
293
293
Boruto: Naruto Next Generations

Boruto: Naruto Next Generations

TV 23m
382
Chiikawa

Chiikawa

TV 1m
18+
1
1
The Poem of Wind and Trees

The Poem of Wind and Trees

OVA 65m
1
1
1
Dr. Stone: Ryuusui

Dr. Stone: Ryuusui

SPECIAL 54m