This book tells the story of five teenagers and girls in an ordinary urban high school, who experienced friendship, misunderstandings, dreams, pressure and growth during the three years from the first to the third year of high school. They joked together, supported each other, and had misunderstandings and losses, but what remained unchanged was that sincere friendship that cannot be replicated. The story outlines a group portrait of high school students in the new era in a witty, humorous and daily light way, and uses details to highlight the tenderness and warmth of growth and farewell. As the college entrance examination approaches, the paths of destiny diverge, and they each face a turning point in their lives: some have improved grades, some have experienced lovelorn for the first time, and some have become "counterattack stars"... In the end, after shedding tears and laughter, they left behind a youthful memory that surpasses time.