At Linyu No. 2 High School, the homeroom teacher pairs Xie Nanyin, the school bully who's always at the bottom of the rankings, with He Jiyu, the top student in their grade, hoping to help him turn things around. They are also assigned to the same two-person dorm room.
The shadows of his childhood hold Xie Nanyin captive. He struggles to trust others, prefers silence and solitude, and is used to shutting himself away. Since starting high school, he has been drifting through school without studying: sleeping in class, playing games, and skipping lessons. Everyone has given up on his grades and thinks there's no helping him.
He Jiyu is dazzling and composed, always at the top of the grade. He has heard about Xie Nanyin for a long time and is curious about the boy outsiders see as cold and rebellious.
Sharing a dorm and each other's company day after day, the two gradually grow closer. They spend evenings studying under the light and explaining problems to each other, and join class outings together. Their lives, once entirely separate, slowly draw near. He Jiyu loves teasing Xie Nanyin and gradually understands the softness hidden beneath his cold exterior. As the days pass, Xie Nanyin begins to let down his guard.
Theme: Encounters in youth can heal. With someone by his side, one boy leaves the shadows of his past behind, and the two grow together.
