Keisuke Haibuki

A first year at Crimson Field, he is reserved, aloof, and to the point, but not unkind. Considered one of the best players on the boy's volleyball team, and he lives in the same dorm as Nobara. He breaks up with Tomoyo Osaka shortly after Nobara comes to live in his dorm, and he mysteriously explains this by saying he has had a crush on Nobara since grade school. As a child, he was asthmatic, which ostrasized him from other children and caused him to develop his aloof and reserved personality. Nobara's indifference towards his condition and positive attitude inspired him to play volleyball and overcome his physical problems. He eventually agrees to become friends with Nobara for the time being since he still has feelings for her. He doesn't like the fact that Yushin hurt her. (Source: Wikipedia)