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OniAi

OniAi

2012·TV series·1 season · 12 episodes

Animation, Comedy, Romance

6.5 / 10 (27 votes)

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!

Created by
Daisuke Suzuki
Original language
日本語
First aired
5 October 2012

Where to Watch

Availability in the US · Subtitle and audio track data

Crunchyroll
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Subtitle and audio languages not checked yet.

Last verified 2 Nov 2026

Cast

  • Ryota Osaka

    Ryota Osaka

    Akito Himenokoji (voice)

  • Ibuki Kido

    Ibuki Kido

    Akiko Himenokoji (voice)

  • Minori Chihara

    Minori Chihara

    Anastasia Nasuhara (voice)

  • Asami Shimoda

    Asami Shimoda

    Ginbei Haruomi Sawatari (voice)

  • Eri Kitamura

    Eri Kitamura

    Arashi Nikaido (voice)