During the Tianbao period, the demonic fog locked Chang'an. Su Yan, a mute female painter, possesses the blood of a psychic fox. Painting with the blood can ward off evil spirits. Li Xuance, a bad handsome man, is a Buddhist practitioner who practices closed-mouthed meditation. Opening his mouth can cause harm to his body. When mysterious crimes such as Pingkangfang's lantern prostitutes eating their souls and Xishi's camels weeping beads occurred frequently, the two were forced to join hands. He broke the precept and coughed up blood because of her, and she showed her fox tail because of him, and together they explored the mystery of the stolen Dragon Suppressing Nail.
The mastermind behind the scenes, Xu Guzi, uses the "Hundred Demons Book" to refine demons to stay alive, in an attempt to steal the dragon's veins. The Suzaku Gate collapsed, the Demon Emperor's cauldron was completed, and Chang'an turned into a purgatory on earth. In a desperate situation, the Zen mind burns all the Buddha's bones to open the gate of heaven, and the lonely demon burns its nine tails to draw the dragon's veins! She used her body as a cauldron to reset the earth's veins, and he fell into the world of mortals with broken bones and a voiceless voice.
The fire of calamity faded away, and the new Changan was reborn from the scorched earth. Beside the Suzaku Bridge, the silent Zen monk and the painter who had lost all his demon power set up a painting stall. With the ink stains smeared, the demonic files sealed with blood and tears finally turned into the gentlest footnotes of the fireworks in the world.
