The story begins with Keita Suminoe, a male third-year junior-high school student studying for his high school entrance exams. He is living in a home with his older twin stepsisters, Ako and Riko, who share no blood relation to him, and they help him prepare for his exams. Even though he initially dislikes himself for it, he begins to become attracted to his two step-sisters, and his two parents encourage him to eventually get married to one of them.

Cast

Ayana Taketatsu

Ako Suminoe (voice)

Yuiko Tatsumi

Riko Suminoe (voice)

Ken Takeuchi

Keita Suminoe (voice)

Yoriko Nagata

Miharu Mikuni (voice)

Asami Imai

Yuzuki Kiryu (voice)

Asuka Ohgame

Mikazuki Kiryu (voice)

Tomoyuki Shimura

Keita Suminoe's Father/Suminoe (voice)

Kiyotaka Furushima

Toda Edogawa (voice)

Daisuke Matsuo

Chiba (Keita's Friend) (voice)

Tomoe Hanba

Ako and Riko Suminoe’s Mother/Suminoe (voice)

Shunzo Miyasaka

Passerby (voice)

Yui Ogura

Girl (voice)

Kaori Ishihara

Girl (voice)

Yukika Teramoto

Pragu (voice)

Hideki Nakanishi

Boy (voice)

Ryo Kuratomi

Boy (voice)

Junta Terashima

Passerby (voice)

Yuu Maruyama

Aunt (voice)

Seasons

12 episodes

Season 12010 · 12 episodes