When Luo Linxi, who had transferred to another school three times, stood under the red brick downstairs of Qingteng Middle School with a canvas bag painted full of stars on his back, he never thought that he would find a reason to stay here. It wasn't until he met Gu Shiqing, a girl with blue ink on the cuffs of her school uniform who could imagine the coordinate axis of a quadratic function as a swing, that he discovered that gentle intersections can also grow in the back row of a noisy classroom.
The class schedule she handed over had a tongue-out emoji drawn on it, and the band-aid he secretly placed on the corner of the table showed clumsy concern; she remembered the brightest star in Orion, and he could draw a dewy gardenia next to the word "flower". The shared memory of Nancheng Art Museum is like an invisible thread, quietly bringing two seemingly different souls closer together. Zhao Lei's provocation, the starry sky on the blackboard, and the promise of National Day camping gradually make this thread become entangled.
Luo Linxi hid the paintbrush that her grandmother had put away after her death, and Gu Shiqing thought about the unfinished starry sky promise made by her sister who went abroad. When titanium dioxide paint meets lemon candies, when a silent drawing board meets smiling eyes, the ivy of Ivy Middle School is quietly climbing all over the brick wall, just like those unspeakable thoughts, slowly turning into a sunny sky in the wind of September.
This is a story about two teenagers healing each other amidst the chirping of cicadas and chalk dust, about the care hidden on the back of the drawing paper, and the nascent heartbeat that is brighter than the starry sky.