The heroine Su Yao and the hero Zhang Yan met in high school. The parents of the two families were good friends before. Later, the two agreed that if they were admitted to the same university, they would recognize their childhood "child kiss". However, the male protagonist Zhang Yan died of a brain tumor on the day of the college entrance examination. As a result, he did not go to the same university as the heroine Su Yao. He asked his parents and friends not to tell the heroine the news. The heroine Su Yao has been inquiring about the male protagonist Zhang Yan for these years, but there has been no news. It was not until the heroine graduated from college five years later that she returned to the small town because her friends Li Yue and Zhang Hao got married. Only then did they find out that the hero Zhang Yan was diagnosed with a brain tumor during the college entrance examination physical examination and died on the day of the college entrance examination. Moreover, when the heroine visited Zhang Yan's parents, Zhang's father and Zhang's mother gave the heroine a diary, which was written by the hero when he was seriously ill. Later, the heroine returned to their small town full of memories of the hero, and opened a sweet-scented osmanthus cake shop by herself. She kept the hero's diary for three years and wrote more than 20 entries in the diary. Just because the hero had more than 20 entries in his diary, the heroine finally stopped in that small town forever.
Purpose: To elaborate on one's own youth experience and look back on youth