Six boys and girls with different personalities gathered in the lively and hilarious city's key high school "Tonglin Middle School". They formed a group due to a misunderstanding and spent three years on campus amid laughter and excitement - there were conflicts on stage, fights in the examination room, youthful troubles, and the embrace of growth. The story takes the "School Town" activities, graduation battles and their respective family problems as the main thread, connecting their first love, dreams, and exploration of the adult world. Everyone learned to understand themselves and others through humor and sentimentality, and they all faced their own reverse moments.