In high school, Lu Youyou's love letter hidden in her locker did not reach the recipient, and Qi Yan's confession that he had been preparing for three years was crushed by rumors. A misunderstanding caused the two people who had a crush on each other to part ways during the mid-summer graduation season.
Ten years later, Lu Youyou became a single mother with her child and opened a dessert shop, while Qi Yan became a well-known lawyer in suits and ties. They suddenly reunited at the class reunion. He was the regret of youth that she could not avoid, and she was the unfinished words hidden at the tip of his pen.
A "bright-eyed uncle" always appears in his daughter Lu Nian's scribbling book; Qi Yan's suit pocket hides the same caramel-colored hair rope that she wore in high school. When the dusty diary was opened, Nian Nian pointed to the little drawing of a milk sound in the corner of each page and asked: "Mom, did this uncle draw you on every page?"
Ten years have melted in the caramel scent, and misunderstandings have peeled off like frosting. It turns out that some heartbeats never expire, and some people, going round and round, will still return to each other's youth.