In adolescence, Yang Xiaohan was a girl who was cold on the outside but sensitive and suspicious on the inside. Her parents' divorce exacerbated her low self-esteem. After the high school entrance examination, she ignored her mother's obstruction and had to leave the county and go to the city to attend high school. Here she met Qi Yu, whom she would never forget, her best friend Adu, and a group of young and right teenagers. Together they worked hard to create a highlight life of their own. And Yang Xiaohan also gained a lot of good memories in this high school, and she gradually shed her sensitivity and selfishness and became a better version of herself.