When the second year of high school started, Su Wanwan, a "little sun in liberal arts" who was very partial to subjects, was assigned by her class teacher to Lu Xingci, the "aloof scholar" who was number one in the grade, as his deskmate, euphemistically called "mutual help." She approached with the idea of "taking advantage of the top student's notes", only to find that the top student could not only solve the most difficult math problems, but would also hand her a toffee-flavored tissue when she was forced to cry by a difficult problem, and rush to hug her regardless of her image when she fell down during a sports meet. From the caution in borrowing notes, to the tacit understanding of hiding in the corner of the library to write questions together, to the fingertips that secretly touched in the summer night wind, the throbbing of youth grew wildly in the formulas on the scratch paper and the small portraits secretly drawn. But rumors of family disparity, pressure to enter higher education, and the sudden appearance of "Bai Yueguang" senior sister have all become obstacles between the two. When Su Wanwan was hiding on the rooftop crying while clutching her mock test report card, Lu Xingci came over holding two registration forms for summer camps from prestigious schools: "My goal has never been to go ashore alone, but to take you with me." This is a youth that begins in school uniform and ends with heartbeat, about growth and redemption, and about me just liking you at my best age.