A series of anonymous letters spanning seven years, who is sinking in the quagmire of secret love? One windy night in the second year of high school, Chen Ziyao passed by Zhu west on his bicycle. The evening breeze lifted her loose hair and came into his sight. Later, he gradually noticed Zhu west. During those days, Chen Ziyao's unrequited love was not noticeable. At school celebrations, on the playground in the afternoon, and at the canteen between classes, he acted as a background in her life. But before Chen Ziyao expressed his love, Zhu west committed suicide at home for a far-fetched reason. Seven years later, one spring, Chen Ziyao suddenly received a collection of poems sent anonymously. The time of each collection corresponded to the corresponding solar terms, such as the Spring Equinox, Qingming Festival, Guyu... The handwriting on the book was somewhat similar to Zhu west's handwriting in his memory. The past was revealed, and Chen Ziyao once again wandered between memories and friends, trying to clear up the fog that had been surrounding him for seven years...
