Hua Mulan, a native of Yucheng in the Northern Wei and Song Dynasties, is a heroine. Hua Mulan's deeds have been passed down to this day. She was a national hero in ancient China, loyal and filial, and famous for her father's army defeating the invading nation. The emperor of the Tang Dynasty named her "General Filial Piety". Mulan is one of the four heroines in ancient China. She is a legendary heroine in the Southern and Northern Dynasties in China, and her story is also a tragic and heroic epic.

For the record of Mulan's joining the army, see the northern Wei Yuefu poem Mulan Ci. After the Qin and Han Dynasties, most of the imperial courts had special Yuefu offices, and the Northern and Southern Dynasties were no exception. Their specific functions are collecting and sorting out folk songs and training musicians, which are under the jurisdiction of Taichang Temple, which is responsible for etiquette and education. Yuefu poetry has the characteristics of folk realism, so it is a historical fact that Hua Mulan joined the army.