During the Yongle period of the Ming Dynasty, a "Demon Region" appeared in the martial world. The "Demon Region" leave a trail of destruction and giving hardships for the livelihood of people. In order to eliminate the "Demon Region", the Wudang Sect dispatches a group of elite disciples to attack. The disciples fail to do so and Mo Chan Chi, head of the Sect, pushes the blame to disciples Fu Ching Wan and Pak Mo Yung. Because of this, the entire martial world is hunting after Fu and Mo Yung, and the two of them eventually take refuge to the "Demon". Fu and Mo Yung, however, were surprised to discover that the "Demon Region" is not an actual demon region...