On a day in September when the hot wind carried the fragrance of camphor leaves, transfer student Lin Xiaoxing, armed with social fears and shortcomings in science, broke into the classroom of Class 1 (3), Qingyun Middle School, and accidentally ran into the arms of class monitor Lu Ze. He is the school bully who attracts the attention of the whole school, gentle and clean, like a breeze in a dry summer; she is a sensitive and cute little coward, clumsy but hard-working, like a little star who needs to be carefully cared for.
The days when they became roommates were a busy learning routine: it was him who lay in front of the table, patiently teaching her how to solve quadratic functions, using a red pen to circle key points, and his fingertips occasionally touched her hands, leaving them warm for a moment; it was she who secretly stuffed strawberry candies into his pencil case, handed him ice water after playing ball, and told him lame jokes when he was depressed. Walking side by side under the camphor tree, quietly holding hands in self-study classes, tacit companionship in the library, cheering and cheering on the playground, a feeling belonging to adolescent boys and girls quietly grows in getting along day after day, tightly entwining each other's youth like vines...