Who was the villain in Chinese mythology?

In Chinese mythology, one of the most notable villains is Nüwa's brother, Gong Gong, a powerful water god associated with chaos and disorder. He is infamous for his destructive nature, attempting to overthrow the heavens and causing great floods. Another significant antagonist is the dragon king, who often embodies tyranny and is challenged by heroes like the archer Hou Yi. These figures represent the struggle between chaos and order within the mythological narrative.