The story revolves around Tomoya Mizuhara, a 13-year-old boy who suddenly gains a big sister when his father remarries. 17-year-old Ichika is a little strange, and her affection for Tomoya is rather overwhelming, if not scary. On top of things, Ichika's friend Ruri is the ultimate sadist. Then there is Ichika's big-breasted quarter-Japanese friend Marina.
Ichika Mizuhara
Main
Juri Nagatsuma
日本語
Tomoya Mizuhara
Main
Aimi
日本語
Eiko
Supporting
Mayu Udono
日本語
Yoshiko
Supporting
Haruna Momono
日本語
Utako
Supporting
Chiyo Tomaru
日本語
Souichirou Fuji
Supporting
Kouji Takahashi
日本語
Mina Fujisaki
Supporting
Ibuki Kido
日本語
Mitsuru Hanazono
Supporting
Yuu Kobayashi
日本語
Ruri Hayasaka
Supporting
Omi Minami
日本語
Kouki Hayasaka
Supporting
Misuzu Togashi
日本語
Yuuko Mizuhara
Supporting
Fumi Morisawa
日本語
Masaya Mizuhara
Supporting
Kenji Hamada
日本語
