There are three families living in the Dongjiatai Gate of Sicheng - the Ling family, the Chen family and the Ye family: Ling Zifeng, the director of the Sicheng Cement Factory, and Chen Jing, the head nurse of the Sicheng Second Hospital, have two daughters, Ling Lan and Ling Fang; senior engineer □□ and elementary school teacher Hu Qin are the old Mrs. Dong of Taimen. Her son-in-law and daughter gave birth to two brothers, Chen Dalin and Chen Xiaolin. The Ye family was prosperous but the poorest family in Taimen. Tricycle driver Ye Mingfa and housewife Xin Xiaohong gave birth to five children - Ye Muxin, Ye Muhua, Ye Muqing, Ye Mufen, and Ye Muwei. The Chen Ling family in Taimen is closer. Neither Chen Ling family has much contact with the Ye family, and they are very disdainful of their attitude towards life that the poorer they are, the more they can make a living.
Ling Lan and Chen Xiaolin, who grew up together since childhood, are childhood sweethearts. When Ling Lan grew up, she became an English teacher at Sicheng Shuren Middle School, while Chen Xiaolin went to Sicheng Second Hospital to become a neurologist. However, Chen Xiaolin and Ling Fang arranged a baby wedding for Chen Ling and his family because they were friends with their parents since they were young. They are a young couple recognized by everyone in the Taimen. Ling Fang is the youngest child in the family. She has been an overbearing and unreasonable little princess since she was a child. Her sister Ling Lan, who is three years older, has always given in to her sister in everything since she was a child, so she sadly chose to quit and accepted the love of Qin Conghua, who almost ran into her, who owned a car and a house and ran a private language school, and got married to her.