Summary of the story: In the early years of the Republic of China, a wealthy family surnamed Tian owed huge debts due to the eldest son's gambling and other bad habits. When it came to the point of selling off the land, Mr. Tian had to agree to marry a wealthy family named Zhang to save the family from rapid decline. The wealthy family surnamed Zhang ran a leather business and had an only son, Zhang Jiashan, who had been frail and sick since childhood and had not yet married over 20 years old. It turns out that the Zhang family asked the Tian family to ask matchmakers to propose marriage to the eldest daughter many times, but they were declined by the Tian family because they were afraid of Zhang's wife's power and the young master's illness. Now it is urgent to save the whole family, and the second daughter Tian Xinyi, who happened to be a concubine, is already 16 and has reached the marriageable age, so she forces the second daughter to get married. The second daughter cannot bear the crying and crying of her biological mother and is always upset, so she agrees to the marriage, but she needs to finish a year in a girls' school before they can get married. During this period, Tian Xinyi met many classmates with progressive ideas in school and was deeply influenced. A year later, he returned home and got married. He was recognized by the Zhang family for his ability and decisiveness in work, and gradually became the promoter of the Zhang family's business. Several opportunities he made made the leather business very profitable. Later, he was encouraged by his classmates to set up a literacy school and systematically accepted new ideas. After marriage, Zhang Jiashan actively cooperated with Tian Xinyi in recuperating and exercising, and his body gradually recovered and became strong... The couple diversified their family wealth and actively participated in the revolution, contributing to the victory of the Anti-Japanese War.