Season 1 Plot
The joys of summer break; warm weather, sun soaked beaches, time off from school, and in the case of Yuuta Yamauchi, a torrid love affair with your cousin. Summer Sis details the sexual relationship between Yuuta and his cousin, Kei Higashide, who offered to help him study for his college entrance exam. As their relationship develops, Kei becomes aware of a girl named Youko who may be toying with Yuuta. Yuuta's summer is about to get very complicated, and it's anybody's guess if he'll actually get any studying done!
Nee Summer! Season 1 aired on December 30th, 2011.
Season 1 Episodes
1. I, Idiot
Yuta spends his summer vacation at home alone with his cousin Kei studying. However, Kei's teasing of Yuta results in their mutual desire for each other flaring up unexpectedly. They instead spend the time "studying" each other, and trying to reconcile their feelings after having crossed the line.
