In the Northern Song Dynasty, Xixia invaded China. She Taijun, who retired, heard the news and sent his great-grandson Yang and his great-granddaughter to Bianjing to inquire. Yang Zhan fought in tinker, and Wang Lun, the son of the Minister of War, returned with a handsome seal. Mu deeply felt that the court was unkind and unwilling to work for it. She Taijun advised her to resist the invasion of Xixia, and Mu took command.