Shi'an, the current heir of Maoshan, was an orphan girl who was picked up by her master, but was taught Taoist skills throughout her life by her master. Before her master ascended to immortality, he entrusted her with the heavy responsibility of the rise and fall of Maoshan: "Guard Maoshan and save all sentient beings." When she first came down from the mountain, she was a disciple of Maoshan who did not understand the world and only knew how to subjugate and eliminate demons. Fa - Haunted ghosts in a haunted house are demanding lives, ghosts are stalking people and killing people, and spirits are causing chaos in the world. Fortunately, she is not alone: the fox demon best friend controls people's hearts, the old tree spirit friends communicate with yin and yang, the ghost brothers deliver news, and a group of non-human companions accompany her throughout the yin and yang realms. The warmth and warmth of human relationships? In catching ghosts and subduing demons time and time again, he saw all the good and evil in the world, lost his youthful ignorance, and transformed from an ignorant disciple into the head of Maoshan who can take charge of his own affairs.
