In the 14th year of Tianbao, a series of heart-cutting cases suddenly occurred in the ghost market of Chang'an. During the autopsy, Li Mobai, the young minister of Dali Temple, found that the "life-sustaining poison" from the Western Regions was left in the heart of the deceased. The interweaving of bronze gears at the scene and the fragments of "Tui Bei Tu" involved him in a shocking conspiracy related to the fate of the Tang Dynasty. On the surface, Chang'an City is prosperous, but in fact, there are undercurrents: the power game between Tiance Mansion and Xuanjia Guards, the secret struggle between the Western Region Tantric Sect and Miao Gu Masters, all centered around the legendary "Kunlun Mirror" that can predict the future and the "Taixu Cauldron" that can make people immortal.
Li Mobai, as a hidden stake in the Xuanjia Guard, was tasked with avenging his father. However, during the investigation, he gradually discovered that in order to seek immortality, Emperor Xuanzong of the Tang Dynasty actually conspired with An Lushan to use 100,000 souls to sacrifice the "Taixu Cauldron". This was the root cause of the "Anshi Rebellion" predicted in "Tuibei Tu". At the same time, Aman, a Miao saint who goes by the pseudonym "Hongxiao", sneaks into Chang'an to seek revenge. The deadly combination of the red whip and golden silkworm Gu on her waist is not only a weapon against the imperial court, but also the key to uncovering the secret of the "Taixu Cauldron". The two used each other to rely on each other in life and death, but their opposing positions were doomed to tragedy - Aman was actually the last sacrifice of the "Taixu Cauldron", and in order to prevent the refining of the cauldron, Li Mobai had to use the numerology deduction of "Tui Bei Tu" to start a final showdown with the villain Xuan Jizi in which "they both die together".
