The Thirteenth Sister is named He Yufeng, the daughter of He Ji. Ji Xiantang's son was attracted by He Yufeng's beauty. After his marriage proposal was rejected, Ji Xiantang tried every means to frame He Ji and had He Ji sentenced to prison. He Ji was depressed and died in prison. He Yufeng's mother took He Yufeng to live in Qingyun Villa of the old hero Deng Jiugong. He Yufeng, who wanted to redress her father, began to practice martial arts. Deng Jiugong specially gave her a fairy sword and sword manual. Yufeng lived up to Deng Jiugong's expectations. Over time, she became a heroine who was brave and brave. Since then, He Yufeng has been nicknamed "Thirteenth Sister" in the rivers and lakes. Once, He Yufeng rescued An Ji, a scholar carrying a lot of money, and Zhang Jinfeng, who was wandering in a foreign land, from the evil monks who robbed money and raped women. The three of them formed an indissoluble bond. After a tangle, the Thirteenth Sister saw through the world and helped An Ji and Zhang Jinfeng. From then on, she wandered around the world, not only vindicating her father, but also becoming a chivalrous woman who upholds justice, promotes good and eliminates evil in the eyes of the people.