The BEST seasons of My Big Sister Arrived

Every season of My Big Sister Arrived ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of My Big Sister Arrived!

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.