Lin Wanxing, a freshman in the fine arts department, accidentally stumbles into the computer science department's “Star Map” project lab and collides head-on with Gu Yushen, the legendary aloof, taciturn “iceberg heartthrob.” A scrap of cobalt-blue watercolor test paper she leaves behind in her panic is like a pebble dropped by chance into a deep pool, sending ripples through his frozen world.
One is a sensitive girl who captures starlight with her paintbrush; the other, a rational top student who builds star maps with code. Though they belong to different worlds, her clumsy intrusion brings them together. In Gu Yushen's world, code is a precise language and data the only answer. Then Lin Wanxing appears, smelling of paint and flustered with uncertainty, like an uninvited ray of light illuminating his orderly life.
When the romance of art meets the precision of technology, and a timid approach encounters a tenderness that struggles to express itself, that scrap of cobalt becomes the start of a secret. They meet by chance in corners of the campus and quietly shine in their own fields, yet without realizing it, they begin to share their starlight with each other. This is a story of collision and redemption, and a journey in which two souls slowly draw closer and illuminate one another amid shifting light and shadow.