Thousands of years ago, the immortals and demons fought each other, and the demon king "Bai Ze" was defeated. His body was destroyed but his soul was not destroyed. Thousands of years later, the demon king's soul sealed in the fragments of the Qingluan Mirror is about to awaken. For the sake of the people of the world, Mu Qing, a disciple of the immortal world, went to the demon world to find the fragments of the Qingluan Mirror.