Lin Ziran and his friends spent three years full of laughter and challenges at Xingguang Middle School. The first volume tells the story of their acquaintance, friction, and unity in a new environment, triggering a series of hilarious incidents inside and outside the class. The second volume focuses on student union elections, campus farce, friendship and emotional disputes, and the relationships between the characters gradually become more complex. The final volume focuses on self-breakthrough before graduation, dream pursuit and farewell, and past misunderstandings and joys are successfully resolved when leaving school. In addition to the ups and downs and youthful publicity, the book uses humor and warmth to outline the growth trajectory of a generation of students.