Lu Chengyu, the 32-year-old planning director of a publishing house, met Su Xiaotang, a 20-year-old Chinese undergraduate student, at a university literary salon. Lu Chengyu is accustomed to the utilitarianism and complexity of the workplace, and is used to wrapping himself up with calmness and restraint. His life is filled with reviewing manuscripts and connecting with authors; while Su Xiaotang, with the purity and enthusiasm unique to a girl, will get red-eyed about a poem, timidly ask him for advice with a short story manuscript she has written, and even dares to say bluntly when he comments on the work, "Your interpretation is too rational and lacks a bit of youthful spirit." The two met during the subsequent manuscript proofreading internship. Su Xiaotang's freshness was like spring cherry blossoms, which broke into Lu Chengyu's heart that had been silent for many years - she would bring warm milk to him when he worked overtime, she would copy her favorite poems on cherry blossom bookmarks and insert them into his manuscripts, and she would read poems to him when he was irritated by the author's breach of contract. Lu Chengyu knew that there was a 12-year life gap between the two, but he still couldn't help but fall in love. But when Su Xiaotang was full of expectations and planned to "work in a publishing house after graduation and write your favorite books with you," he was urging the marriage at home (his parents asked to find a partner of the same age and matching family background) ), workplace pressure (peers commented that he "had an affair with an intern, which affected the reputation of the publishing house") and self-doubt (for fear of delaying her youth and not being able to give her a pure campus love), he chose to push her away with indifference, letting the relationship finally stop in the spring when the cherry blossoms have fallen.