Hidamari Basket

Keito is an average student. He lives a peaceful life with his mother, Haruhi, and his younger sister, Kasuga. However, Kasuga secretly loves Keito. One day, she tells him that she loves him and they accidentally kiss each other.... To make matters worse, Haruhi finds out and Keito is ordered to move to a school dormitory. But Kasuga never gives up! Keito meets various girls at the dormitory and his school life gradually gets busy...