Song Yi is the number one in his grade who stays alone in an empty villa all year round. He is as cold as ice that refuses to melt - his parents' suitcases always arrive home before others, and his world is only filled with formulas and silence. Gu Zhizhou is a classmate in the villa next door. He grew up surrounded by his mother's warm light, but after his mother died of illness and his stepmother came in, he became the most guest-like person in the family. They were top students on two parallel lines, but they were quietly tied together by fate because of the neighbor's fence and the neighbor's seat in the classroom. No one knew that Song Yi, who was too lazy to raise his eyes to the whole world, would leave a porch light for Gu Zhizhou who was tossing and turning in countless late nights. From the villa to the classroom, from alienation to possession, the two seemingly incompatible puzzle pieces finally spelled out each other's shapes in youth.
Concept: Two teenagers who are each trapped in loneliness use their dual identities as "deskmates and neighbors" as an opportunity to pierce each other's armor in a clumsy but sincere way in their interactions day after day - the cold and hard shell hides the softness that longs to be seen, and the warm appearance is wrapped in the uneasiness of being abandoned. Finally, they find the meaning of "being needed" and "being cherished" in each other, proving that "real healing is the two-way redemption of two people."