It mainly introduces the story of the male and female protagonists from being naive after graduation to gradually getting to know each other, falling in love, and accompanying each other after working. They gradually grow up together while facing difficulties and hardships, and move towards maturity, and towards a life with joy and sorrow in their hearts that meets their own wishes. It also appropriately introduces each period. The changes in social history, changes in people's ideas and concepts, changes in living habits, and worries about life have also changed with the times. The colorful and seemingly ordinary but extraordinary lives of all kinds of ordinary people reflect people's unyielding spirit and give people the positive energy to face difficulties.