The story revolves around Chen Chen and other high school students, who spent chaotic but joyful campus time in Class 2 of the third year, experiencing study pressure, club conflicts, adolescent troubles, the ups and downs of friendship and love, and the pursuit of dreams. Although there are occasional absurd farces, every crisis brings growth and new discoveries. Each volume is the dividing line between first grade and senior year, and Chen Chen goes from confusion to clear growth goals, and also meets a group of partners with different personalities. While fighting wits and courage with the teacher, his relationship with Tang Jing also gradually warms up, making him funny all the way. In the end, the second class of the third year worked together to create a legend on the eve of the college entrance examination, and each embarked on their own new path of youth.