Lin Yue and his friends started a three-year growth journey at a key middle school in Dongfang City. Entering the first year of high school, friendships are budding, dreams collide, and Su Nian transfers to another school, triggering a chain reaction. From ignorance to maturity, everyone has experienced exam failures, family changes, youth crushes, club competitions and other disturbances, and they have also gradually grown up in loss. The Gang of Four faced everything with humorous complaints and positive actions. In the end, at the crossroads between the pressure of the college entrance examination and the fork in life, they said goodbye to each other frankly and ushered in a new starting point in their lives. The story has a tight rhythm, dense laughter, and intertwined emotions, showing the truth, kindness, beauty and strong vitality of youth.