Legend of White Snake
Legend of the white snake is a famous Chinese legend, as it exists in the oral tradition before any text assembly. In the most basic, tells the story of a young scholar fell in love with a beautiful woman, do not know that she is a white snake who took human form. A monk intervention in order to save the scholar's soul, the white snake into wells in the Leifeng pagoda.
For centuries, this story has evolved into a horror story from the romantic story, scholars and white snake-woman love each other genuinely, but the relationship is prohibited by the laws of heaven. The story also has some changes: like scholars put white snake as a pet while still a schoolboy; or he was thrown out of heaven, become a person on earth.
One extra character is a green snake who has also become a woman as the white snake-woman's soul sister and confidante.