The real historical prototype of multi-cranes is multi-cranes in bamboo. Duohe is a fictional character. Her full name is Takeuchi Duohe, a Japanese woman born in Dailang village. During World War II, after Japan's defeat, Tokuga and some other Japanese fled to the border of China. In the process of escape, Doha became an orphan, was taken in by the James Zhang family on the border of China, and became the daughter-in-law of the James Zhang family. This story happened in an era without material and culture. The lives of James Zhang, Zhu Xiaohuan and Duo He are closely linked by fate. Although at first Duohe was only used as a tool and servant to have children in the Zhang family, with the passage of time, love came into being between her and her. Duohe was finally accepted as a member of the family, renamed Duohe Zhu, with the same surname as Zhu Xiaohuan.