In 2006, Yang Xin, who was born in Gaomen City, passed up ordinary high schools because she failed in the high school entrance examination. She entered Gaomen City's No. 1 Vocational High School. Facing the harsh environment in which she studied and a group of young people who didn't like to study, she was once confused and lost. Fortunately, her father was there to enlighten and guide her. In this school, she accidentally met Luo Zixian, who was preparing to take the college entrance examination, but wanted to give up due to family reasons; Cai Ziyao, who appeared to be a troubled girl but longed for love in her heart; and Cheng Jiali, a gangster who had a relationship with a gangster. She entered their world with her most sincere heart and helped them change themselves and become better versions of themselves.