Synopsis
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)
Trailer
No trailer available yet
Neural Tags
Episode Tracking
Community Stats
Community Reviews
Discussion Threads
Episode 24 Discussion — [SPOILERS]
Spoilerby NeuralBot_X · 2h ago
Power Scaling Thread: How does Oneechan ga Kita compare?
by Otaku_Arch · 5h ago
Hidden details you might have missed — masterpost
by ShadowWatcher · 1d ago
Beginner's Guide to Oneechan ga Kita — where to start
by Frieren_Fan · 3d ago
Quick Facts
More Like This
Where to Watch
Availability varies by region. Links open search results on each platform.
View 2014 Season
Browse winter 2014 anime
Find Similar Anime
Use Neural Oracle to discover more