What is Hua Dan's role in China traditional opera?

Hua Dan is a traditional opera character in China. The image of young or middle-aged women is lively or provocative and dissolute, often with a little comedy. The word Hua Dan comes from Xia Tingzhi's Collection of Brothels in the Yuan Dynasty: "Where geisha are prostitutes, Hua Dan is ashamed of it. Except for some introverted boudoir women, they all wear long dresses (called pleats and purses in the play), mostly short coats, or skirts, jackets, or pants and jackets. When wearing trousers and coats, you should wear a vest, a "meal list" (that is, an apron) and a "four-happiness belt" (that is, an ornament hanging in front of your waist and between your legs). Cao Chun in Cao Chun rushed into the hall, Sun Yujiao in Picking up the Jade Bracelet and Li Fengjie in The Prince and the Dancer.