The White Dragon (2004) on Netflix

Plot summary

Black Phoenix is a privileged student at a school for the children of elite families. She wins a beauty contest there, and Second Prince Tianyang, who hands her the award, takes an interest in her. One day an assassin known as Chicken Feathers arrives to kill the principal and fights the janitor, who is secretly the famous martial artist White Dragon. White Dragon is badly hurt, and Black Phoenix saves her, so the dying woman gives the girl all of her neigong. With no martial arts training, Black Phoenix breaks out in acne. The only way to hold it off is to do good deeds, and since she wants to marry Tianyang and keep her looks, she begins robbing the rich and giving to the poor as the Little White Dragon.