When the ginkgo leaves turned yellow for the third time, Ding Yi found a candy wrapper in the anatomy textbook, with the words "I want to be a brother's bride" written in tender handwriting on it. This promise came to an abrupt end in the summer of fifteen - the Zhu family was forced to move out of the alley due to debt, and the two children buried the promise in an iron box under the ginkgo tree.
Ten years later, at a business reception, Xiaoxiao, who served as translator, reunited with Ding Yi, who was attending on behalf of a family of traditional Chinese medicine. When Ding's father discovered the yellowing sugar painting design in his son's drawer, the dusty grudges suddenly broke out. It turns out that the Zhu family's bankruptcy was related to the Ding family's ancestral prescription...
In order to prevent the two from dating, Ding's father arranged for the daughter of a medicinal material dealer to frequently visit the hospital. At the same time, Xiaoxiao received an admission notice from a Paris high school. On the day when the tenth annual ring of the ginkgo tree closed, Ding Yi used silver needles to cure Xiaoxiao's taste disorder, and Xiaoxiao used the restored ancient sugar frosting to draw on the bluestone the appearance of the two when they first met.
