An accident on campus on the eve of college entrance exams changes the lives of two teenagers. Chen Nian’s introverted personality is the best student in the school, as she is considered in high school. Reviews and applies to a good university. The accidental fall of the classmates led to a series of unknown stories, and Chen Nian was also a little involved in it. At her most crucial moment, a boy named «Little North» broke into her world. Most 18 year olds, they are bright and happy, but in the summer they experienced the indifference of the adult world. A secret «battle» has begun, and together they will guard their dignity.