When the absent-minded Lin Wan, a directionally challenged upperclassman, takes home the wrong book for the Nth time at the library, accidentally carrying off the notes of Shen Yichen, the quiet, top-student underclassman, the gears of fate begin to turn. To “make up” for the “loss” of a notebook, Shen Yichen proposes one-on-one tutoring as “compensation,” kicking off their daily “togetherness” in the library, at milk tea shops, and along campus paths. One is convinced that romance is nowhere near as sweet and lovely as milk tea and desserts; the other uses the logic of science to carefully plan every step. That is, until he quietly memorizes all her likes and brings her the sweetest congee when she falls ill. With their supportive roommates and mischievous friends cheering them on, this campus romance that began with a “mix-up at the library” gradually blossoms into the sweetest love story of youth. This is a story about taking things slowly, healing, and finding your way to each other, filled with the scent of books in the library, the sweetness of milk tea, and the unique excitement of young love.