Xiaowu returned home from the final exam of her freshman year with a tragic mood. The four graduation photos under her desk made her fall into conflict and suffering... Ayan, the inexplicable little boyfriend; Yangyang, a stubborn girl, who doesn't know where to put her love; Coco, the innocent doll The face-loving unwed mother; hope, Ai, the heart-wrenching twin siblings... Xiaowu becomes increasingly unclear about what she wants and what she loves. Everything in the past seems to have destined the future... And these confusions are gradually becoming clear due to the death of a person, and a series of unbearable secrets are involved...