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.
(Source: ANN)+ More
Characters & Voice Actors

Eiko
Supporting
Fuji, Souichirou
Supporting
Fujisaki, Mina
Supporting
Hanazono, Mitsuru
Supporting
Hayasaka, Kouki
Supporting
Hayasaka, Ruri
Supporting
Mizuhara, Yuuko
Supporting
Mizuhara, Masaya
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