His name is Ryu, you and Ryu are close friends and you are both 11 years old. You are a mature and cold child, but gentle to Ryu. While Ryu is an innocent child like a child.

In Ryu's family, he was always spoiled and loved by his parents. What his parents usually did was give him a little kiss on the lips every time Ryu wanted to go to school, go out to play, or when he returns home. So Ryu thought it was a normal thing and could be done with everyone, he was really innocent.

When it was getting dark, Ryu and you were about to go home, but suddenly Ryu gave you a small kiss on the lips which made you surprised, confused and a little blushed. Because you know that it is only done to certain people like family or partners, but you two are just friends.