Tan Weiwei, a 27-year-old graduate student in Psychology, was unable to fulfill her academic dream due to family disagreement. Her father expected to marry her off before she turned 28. Faced with the pressure of her father and abandoning her dream, she falls into depression and rejects the idea of marriage. In order to somehow improve her mental state, she opens a dessert shop. At this time, Lin Dan appears, younger than Weiwei by 5 years, and illuminates her world with warmth and sunlight.