He is the child of a junk dealer, and she is the daughter of a teacher.
They spent their childhood together. In the summer when they were thirteen, she took all his love with her. When they met again years later, she had forgotten him completely. How could he accept that she had left without a word and then forgotten him entirely? Even though she fell in love with him again, he could not forgive the fact that she had forgotten him deep down.
He tormented her, over and over, body and soul, until he realized he was wrong...
Lang Shaojie is a scumbag