He Yu Feng (nicknamed 13th Sister) is the daughter of He Ji. Ji Xian Tang's son fell in love with He Yu Feng's beauty. After his marriage proposal was rejected, Ji Xian Tang came up with ways he could frame He Ji. He managed to have He Ji imprisoned and ultimately killed due to depression inside the prison. He Yu Feng's mother brought her to live in old hero Deng Jiu Gong's Green Cloud Mansion. Bent on clearing her father's name, He Yu Feng began to train hard in her martial arts. Once, He Yu Feng saved a wealthy scholar called An Ji, and a foreigner called Zhang Jin Feng from an evil monk and the trio's fates intertwined. In the end, 13th Sister helped An Ji and Zhang Jin Feng be together and roam the world. Not only did she clear her father's name, but she also became the heroine that punished evil in everyone's mind. Reference (MyDramaList)