Sang Yu's parents both committed suicide, leaving only her grandmother and Sang Yu to depend on each other. Her father owed usury debt and was bullied at school because he had no father or mother. He had no choice but to transfer to another school and met An Chenxuan. "Accidents" were staged one after another. This performance was like an unripe tangerine, astringent and sour.
Purpose: Oppose school violence
