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Where to watch OniAi (2012)
OniAi is streaming on Crunchyroll in 8 countries, Crunchyroll Amazon Channel in 6 countries and U-NEXT in 1 country, plus 2 more services. In the US, you can watch it on Crunchyroll and Crunchyroll Amazon Channel. In the UK, you can watch it on Crunchyroll and Crunchyroll Amazon Channel.
OniAi
Adorable young Akiko is thrilled to be reuniting with Akito, the handsome older brother she hasn’t seen in years! In fact, she might be a little too excited about living under the same roof with her precious big bro. This pint-sized cutie has a serious brother complex, and she’s definitely not interested in sharing his attention. Unfortunately for little sister, she and Akito won’t be living alone: three gorgeous girls from the student council will be along for the ride! So much for the peaceful existence Akito was craving. Big Brother the dreamy will have to stay on his toes to avoid the advances of Sis and her ravishing rivals!
Also available regionally
U-NEXT
Anime Times Amazon Channel
dAnime Amazon Channel
Quick answers
Is OniAi on Netflix?
No. OniAi isn't on Netflix in any country right now.
Is OniAi on Prime Video?
No. OniAi isn't on Prime Video in any country right now.
Is OniAi on Disney+?
No. OniAi isn't on Disney+ in any country right now.
Is OniAi on Max?
No. OniAi isn't on Max in any country right now.
Where can I watch OniAi in the US?
In the US, OniAi is streaming on Crunchyroll and Crunchyroll Amazon Channel.
Where can I watch OniAi in the UK?
In the UK, OniAi is streaming on Crunchyroll and Crunchyroll Amazon Channel.
Where can I watch OniAi in Canada?
In Canada, OniAi is streaming on Crunchyroll and Crunchyroll Amazon Channel.
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Last updated October 7, 2026.