The Book of Changes of Mountains and Seas

All things have spirits, and once a creature reaches its end of life, its spirit will return to heaven and earth. And if a living being has an unfulfilled wish, the spirit will continue to stagnate in the heaven and earth, and over time, it will turn into an evil spirit with powerful power. There is a kind of person whose mission is to eliminate evil spirits. They are called spiritual exterminators. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.