Lin Xuan, an ordinary grassroots boy, by chance, became the disciple of Uncle Jiu in Maoshan and became the official Taoist night watchman.
He couldn't do anything at the beginning - his hands shook when drawing talismans, he was teased by the weasel spirit, and he relied on his master to take care of everything. But he is smart, poor-talking, and has a bottom line. With the unique knowledge of Maoshan and the golden finger of the "merit system", he does good deeds and suppresses evil and accumulates merit. Step by step, he grows from a stupid young man to a unique Taoist priest.
On the way, he met Xiao Man, a young horse girl from the Northeast who was established in the hall and worshiped the Five Immortals, and they became happy enemies. Because of an unjust case, his soul wandered to the underworld, and he worshiped the black and white impermanence, and mixed the judge, the city god, and the ox-headed horse face into the "circle of friends in the underworld".
But secretly, the Onmyoji of the Sakura Kingdom used the invading souls of the undead to refine evil weapons, the Thai surrender, and the Miao witchcraft to communicate with the outside world in an attempt to undermine China's national destiny. When ghost disasters occur and foreign aggression threatens the environment, Lin Xuan raises his arms and calls out: Taoism, Buddhism, the Five Immortals, and the ghosts of heroes form the "Chinese Night Watch Alliance", and the Yin and Yang realms work together to protect the family.
The evil spirits are endless and the vigil is endless.