Watch Onimai: I'm Now Your Sister! on Hianime

W.2.G

ENJP

English

Random

News

Community

Home
Anime
- Subbed Anime
- Dubbed Anime
- Most Popular
- Movies
- TV Series
- OVAs
- ONAs
- Specials
Genre
- Action
- Adventure
- Cars
- Comedy
- Dementia
- Demons
- Drama
- Ecchi
- Fantasy
- Game
- Harem
- Historical
- Horror
- Josei
- Kids
- Magic
- Martial Arts
- Mecha
- Military
- Music
- Mystery
- Parody
- Police
- Psychological
- Romance
- Samurai
- School
- Sci Fi
- Seinen
- Shoujo
- Shoujo Ai
- Shounen
- Shounen Ai
- Slice of Life
- Space
- Sports
- Super Power
- Supernatural
- Thriller
- Vampire
- Yaoi
- Yuri
- More

Join nowHiAnime Group

Watch2gether

Random

ENJP

English

News

Community

Expand

Auto Play

Auto Next

Auto Skip

Watch2getherLive

Watch more seasons of this anime

Season 1

Season 1 (Uncensored)

Onimai: I'm Now Your Sister!

PG-13

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.

View detail