By day, a factory worker on the assembly line. By night, a Celestial Master who guides souls across.
Once every sixty years, the seal on the Mystic Realm cracks. Shadow Demons break free and wreak havoc among the living, feeding on humanity's resentment as they lurk in the cities and cause trouble.
Mo Xiaoqian, a disciple of the Xiangtian Sect, disguises himself as an assembly-line worker while secretly guarding the site of a Yin ley line in Yu City. His first battle against an evil spirit traps him in a demonic illusion. His junior brother Li Hao descends the mountain with the sect's Dragon-Patterned Command Token, delivering an order that he stop holding back.
A ghostly marriage, a bloody dormitory case, and a horrifying possession case follow one after another. The official Special Cases Unit gets involved, while the Shadow Demon Lord secretly puts his plans into motion.
The slacker worker sheds his disguise and the Celestial Master takes his place. Wielding righteous law and suppressing every evil, he stands against the calamity that comes once every sixty years and protects the peace of the human world.
