Xin Jin was originally the guardian dragon beside the Jade Emperor. Because of his crime, he was demoted to the mortal world. Dao Zun was taken as a disciple by the daughter of the demon Luo Huoyou. He was trapped in the Night Demon Cliff. Later, Fairy Ziqin rescued him and taught him the magic. Later, because Xin Jin and Ziqin lived in seclusion were discovered by the demon generals, and Xin Jin's practice had not been completed yet. The two decided to enter the world to continue practicing. After they came to Chang'an, Xin Jin was mistakenly considered by the two girls as their lover Yang Qiaotian. This misunderstanding would bring unexpected changes in their lives to Xin Jin...