A hundred years after the founding of the Dayin Dynasty, they massacred the Wu tribe in southern Xinjiang on the pretext that "witchcraft was a disaster". When Huo Chenyuan, the current general of Zhenbei, was ordered to investigate a bizarre murder case, he found a silk handkerchief embroidered with the totem of the Wu tribe under the pillow of the deceased. The girl who sells embroidery, Su Wanyue, is the saint of the witch clan who slipped through the net back then. The silver bell she carries contains the secret key to the whereabouts of the former prince.
