One of many Chinese legends is the “Legend of Li Shao”. They say every 1,000 years the dark and light forces arrive.
The dark’s forces name is Shao Li and the light’s forces name is Li Shao or also known as Ying and Yang. The forces are separately trapped in two humans’ bodies. These two humans will meet each other and start an epic battle between good and evil. If the light wins the world will be in goodness and happiness. But, if the dark wins the world will be destoryed!