The story focuses on five middle school teenagers with different personalities - they are searching for themselves, facing family and social pressure and growing up at the turning point of youth. Lin Qihang hopes to break through the boundary of inferiority, Song Ruoqing struggles between dreams and reality, Xu Jiashu pursues freedom but cannot escape the constraints of his family, Zhou Xiaoman is positive in the face of adversity, and Du Xingchen seeks acceptance in rebellion. They met in an ordinary but special three years, and experienced the twists and turns of friendship and love, as well as the test of dreams and family ties. The three volumes respectively describe the first acquaintance, transformation and farewell. The plot is multi-faceted, humorous, compact, and has frequent climaxes. Finally, starting from graduation, the story unfolds successfully. The book uses ups and downs of stories to tell the multiple meanings of youth.