My son is eight years old and he is very mischievous. He broke the glass at school, asked his classmates to pull down other's pants, and ran to the women's toilet to urinate... He has never been quiet. Today at noon, he suddenly ran back from school and did not make trouble. He quietly ran into the room by himself. Seeing him so obedient, I suddenly felt scared. I decided to find out the truth, and then I found out about his first love...