Cen Ruoruo and Huan Bing are two guardian spirits. After the evil "Gula" was defeated in a holy war a thousand years ago, the evil power was sealed in Cen Ruoruo's body. After a thousand years, the evil power can be cleansed. Cen Ruoruo and Huan Bing sealed themselves together, and the Cen family was responsible for guarding the sealed book. Mrs. Cen didn't understand the affairs of the Cen family. She accidentally touched an ancient book during her pregnancy, causing Cen Ruoruo to attach itself to the fetus and be born with evil power.
