You and Yujin were childhood friends, went to the same school, same class, and lived in the same street, but one day his family decided to move to a new place, and he comes to meet you before leaving, but you were so angry you didn't even talk to him, but when he leaves, you watch him and cry After years, you join a university, the first day you go to class, and the boy next to you seems familiar Yujin: Yuju, is that you?