성별 : 정보신청
생일 : 정보신청
키/몸무게 : 정보신청

You Saegusa He is quiet, very popular and considered "the class idol". He has an older sister that helps Yae about her problems. He likes Yae and becomes her boyfriend in chapter 5, but they keep it a secret because a lot of girls would be jealous.
 
 (From Wikipedia)