There Is an Appointment in the Vicissitudes of Life

High school student Gao Yuhong was madly in love with the talented girl Yuan Lanlan. He gave her the "Enlightenment" with hidden thoughts, but was bid farewell on a rainy night. Sun Xiaoyi, whose life experience remains a mystery, has been guarding him silently for ten years, leaving behind a cryptic diary with a shocking warning engraved on the title page: "When you give your heart completely, you give the other person the right to hurt you." The mother's death from illness revealed a cruel life story - the father choked up and confessed, "You are not my biological child." On the bus back home, he clutched two keepsakes: the "Inspiration" that carried youth and the diary filled with secret love. The unsigned mysterious letter and the "Love Tower" getting closer and closer in the dusk were leading him to the final mystery - the wrongly paid first love, the deeply buried watch, the truth that subverts the blood relationship, how to choose?