Zhang Min's four sisters, Aimei (played by Chen Jiayi), Ailan (played by Li Siqi), Aiju (played by Wang Aiming), Aizhu (played by Huang Xingxiu), and their mother (played by Huang Manli) and the old maid live in a small town. The eldest daughter, Zhang Aimei, is greedy for vanity and dresses up all day long. The second daughter, Zhang Ailan, is a down-to-earth and generous person, she likes to write, and hopes that she can become a writer one day. The third daughter, Zhang Aiju, likes music. She plays the harmonica and sings whenever she has free time. The youngest daughter, Aizhu, is innocent and lively, a gluttonous girl, she stops school at home to help with housework. Their father was a doctor, and because of his generosity, he did not charge for medical treatment with the poor. As a result, their economic environment is not very good. Despite this, the family is harmonious and very happy.　　Dr. Zhang (played by Luo Guowei) is grateful for the world, leaving this happy family and leaving the countryside alone to treat the poor. The Zhang family lives next door to a wealthy family surnamed Chen. The young master of the Chen family recently returned from a foreign country to take care of factory affairs. On many occasions during his morning walks, he met Ellen and was deeply impressed by him. Zhang's mother is kind and kind-hearted. Like her husband, she loves to help the poor. She saw that her neighbor's aunt had lost her husband, leaving her four children in difficulty. From time to time, Zhang's mother pawned objects to help Aunt Li and take care of her children. Aunt Li also knew that Zhang's mother was in difficulty, and she didn't want to accept Zhang's mother's help, so she had to go out to find a job. Ailan's boyfriend Lin Shantong (played by Wu Weiguo) is the director of the cloth factory, and she asks Shantong to introduce Aunt Li to work in the factory. Shantong was embarrassed to say that the young master of the Chen family was appointed as the factory director, and he didn't know if he could agree. Ailan hurriedly went to find Young Master Chen Zhongyuan (Yu Yang). Chen Zhongyuan studied abroad and has a frank and enthusiastic personality. He knew from his friends that the Zhang family was enthusiastic about helping others, and he had a good impression of Ailan in his heart, and promised Aunt Li to work. Chen Zhongyuan held a dance party at his home and invited the Zhang sisters to participate. The four sisters were overjoyed. The three Aimei sisters deliberately dressed up, but Ailan still wore old clothes to participate.　　　　Aimei is greedy for vanity, she knows that the Chen family is rich, and she uses the excuse to get close to Zhongyuan. Zhongyuan loves Ailan. Aimee found out and was very upset. Alan knew that her sister loved Zhongyuan, so she created an opportunity for them to see each other closer. Zhongyuan expresses his love to Ailan, and Ailan says that he loves Shantong deeply and hopes that he will love Aimei instead. Stroke Zhongyuan and Aimei get married. On the day of Aimei's wedding, Zhang's father came back from the countryside and caught up with the wedding, and the family was happy. The plot development is extremely lively.