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

Mizuhara, Tomoya
Main
Terakawa, Aimi
Japanese
Mizuhara, Ichika
Main
Nagatsuma, Juri
Japanese
Eiko
Main
Udono, Mayu
Japanese
Fuji, Souichirou
Main
Takahashi, Kouji
Japanese
Fujisaki, Mina
Main
Kido, Ibuki
Japanese
Hanazono, Mitsuru
Main
Kobayashi, Yuu
JapaneseRecommended for you
Handa-kun
TV
24m
Heya Camp△: Sauna to Gohan to Sanrin Bike
Special
10m
A Sister's All You Need
TV
23m
Kamichu!
TV
26m
Ahiru no Sora
TV
24m
Minami-ke Natsuyasumi
OVA
28m
Naruto OVA9: Sunny Side Battle
Special
11m
My Ordinary Life Episode 0
OVA
22m
Red Riding Hood Chacha
TV
24m
BLEND-S
TV
23m
Isekai Quartet 2
TV
11m
Heaven's Lost Property
TV
24m
Maria Watches Over Us
Special
1m