In the seventeenth year of the Republic of China, the world was in turmoil and Yin and Yang were out of order. Xuan Weizi, a disciple of Maoshan Mountain, was ordered by his master to go down the mountain, hold the fragment of the "Tianshi Seal", and walk in the troubled times. What he encounters are non-human beings, and what he sees are non-objects: ghosts roam the haunted house in Shanghai at night, corpses transformed by poisonous poison in the Miao village in western Hunan, Yin soldiers borrow the ancient Yellow River Road, and the ghosts of Jinling Theater are still lingering... Behind every strange thing, it points to a cult organization called "Netherworld Dao". This sect worships the "Emperor of the Netherworld" and wants to sacrifice the blood of all spirits to open the "Gate of Nine Netherworlds", reverse the yin and yang, and make the underworld cover the yang world.
