In the ten years since Su Xiaotang and Lu Xingci were at the same table in high school, they have gone through the college entrance examination agreement, different schools in the same city, different time differences, and the fireworks of living together, and they have held each other in the surprise of a reverse proposal. When they were working side by side in their careers, they were each other's source of confidence; after their daughter was born, there was a deeper tenderness hidden in their clumsiness. But at the high school reunion, the secrets from back then were revealed one by one - he changed seats early and secretly hid her hairpin... Those unspoken thoughts hidden in candy wrappers, scarves and mint scents are still slowly fermenting over time, waiting to be understood by more people.