Chaotic teacher, calm student. One is an elder brother and the other is a younger brother. "You don't have to accept me, as long as I like it." "If you like me to cover you with quilts, like me to take care of you, and sleep next to me, don't think too much." "You think too much about the relationship between bullshit brothers. I just want to fall in love with you. You are too young to have a relationship." The teacher with a chaotic private life was tied to a person one day, and he couldn't let go anymore, no matter how painful it was.