Currently watching Episode 4 Switch to alternate servers in case of error.
Oniichan Wa Oshimai

Oniichan Wa Oshimai

HD
SUB
TV Series Ongoing 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!
Aniwatch is a site to watch online anime like Oniichan Wa Oshimai SUB online GoGoAnime, or you can even watch Oniichan Wa Oshimai in HD quality just like KissAnime and 9Anime.

6.8 (6868 voted)
Vote now
Rate this anime!

 

Comments

Recommended For You

SUB
EP 26
Taikong Xiha Zu

Taikong Xiha Zu

TV Series Completed 2002
DUB
EP 155
Tennis no Ouji-sama (Dub)

Tennis no Ouji-sama (Dub)

TV Series Ongoing 2001
DUB
EP 26
Tokyo Underground (Dub)

Tokyo Underground (Dub)

TV Series Completed 2002
SUB
EP 13
Miss Monochrome The Animation

Miss Monochrome The Animation

TV Series Completed 2013
SUB
EP 13
Stratos 4

Stratos 4

TV Series Completed 2003
DUB
EP 52
MegaMan NT Warrior (Dub)

MegaMan NT Warrior (Dub)

TV Series Completed 2001
SUB
EP 51
Ojamajo Doremi Dokkaan!

Ojamajo Doremi Dokkaan!

TV Series Completed 2002
SUB
EP 24
Chocotto Sister

Chocotto Sister

TV Series Completed 2006
SUB
EP 24
X TV

X TV

TV Series Completed 2001
DUB
EP 12
Virus Buster Serge (Dub)

Virus Buster Serge (Dub)

TV Series Completed 1997
SUB
EP 13
Mahou Shoujo Lyrical Nanoha A's

Mahou Shoujo Lyrical Nanoha A's

TV Series Completed 2005
SUB
EP 26
The Running Heroes

The Running Heroes

TV Series Completed 2017
DUB
EP 13
Rosario + Vampire (Dub)

Rosario + Vampire (Dub)

TV Series Completed 2008
DUB
EP 12
Kono Subarashii Sekai ni Bakuen wo! (Dub)
SUB
EP 45
Mashin Eiyuuden Wataru

Mashin Eiyuuden Wataru

TV Series Completed 1988
SUB
EP 19
Tanken Driland

Tanken Driland

TV Series Completed 2012
DUB
EP 178
Tennis no Ouji-sama (Dub)

Tennis no Ouji-sama (Dub)

TV Series Completed 2001
DUB
EP 12
Queen's Blade Rurou no Senshi (Dub)

Queen's Blade Rurou no Senshi (Dub)

TV Series Completed 2009
DUB
EP 178
Tennis no Ouji-sama (Dub)

Tennis no Ouji-sama (Dub)

TV Series Completed 2001
SUB
EP 51
Glass no Kamen (2005)

Glass no Kamen (2005)

TV Series Completed 2005
DUB
EP 155
Tennis no Ouji-sama (Dub)

Tennis no Ouji-sama (Dub)

TV Series Ongoing 2001
SUB
EP 3
Free! Specials

Free! Specials

TV Series Completed 2013
DUB
EP 12
Bannou Bunka Neko-Musume DASH! (Dub)

Bannou Bunka Neko-Musume DASH! (Dub)

TV Series Completed 1998
DUB
EP 13
Sanrio Anime Sekai Meisaku Gekijou (Dub)

Sanrio Anime Sekai Meisaku Gekijou (Dub)

TV Series Completed 1987

Current Anime

Genres