The protagonists "Su Xin" and "Zhi Qiang" are part of the thousands of unemployed people in the city. Their fate allows them to walk out of the dilapidated wall and into another solid and gorgeous wall. A prosperous life requires immense hardship. They were classmates and colleagues, and inadvertently became lovers, living together as partners. In this world, two people adapt to each other and begin to walk into each other's hearts. They wander between their hearts, with a little warmth and a little light being each other's windows. When the spring was warm and the flowers were blooming, an accident happened. But no matter how difficult life is, you still need to be strong and look up to hope and go on.
Concept: They wander between the walls, a little warmth and a little light are each other's windows