Zhu Xiaolin, 32 years old, used to be a garden landscape designer. After taking responsibility for a project accident, she changed careers. She learned from her father and became a waterproofing glue repair technician for expansion joints of community trails. Three years later, she returned to the front line with her professional skills, but unexpectedly reunited with her former lover, park operation and maintenance supervisor Lu Zheng. The two of them re-measured the passing time in every gap in the community's trails.
