In Mingli Lane, shaded by plane trees, Xu Chuyan and Wen Yushi met at the age of five and grew up together. He is the science genius who ranks first in the overall examination, and she is a quirky and artistic girl; he is like the cool summer breeze, and she is like the intoxicating catnip. Over the past eighteen years, they have witnessed every important moment of each other - the embarrassment when they fell down on their bicycles as a beginner, the quarrels during the rebellious period in junior high school, the vague heartbeat in high school, and the warm smiles of their friends around them.
When the college entrance examination was over, Chu Yan received an admission notice from a prestigious foreign school, but Yu Shi was unable to go with her due to family changes. Two hearts that were originally close were forced to separate across the ocean, struggling in misunderstanding and longing. We meet again five years later. He is the CTO of a cutting-edge technology company, and she is a best-selling picture book author. Can the tacit understanding in childhood transcend time? When "Xia Feng" meets "Catnip", will they pass by each other, or will they embrace each other for life?