Modern and ancient imaginary world views, with modern being the main one.
In a world where humans and ghosts coexist, after a person dies, if he has no regrets during his lifetime, he will be reincarnated. If he has regrets, he will turn into a ghost. After the regrets are over, he will still wander around the world as a ghost, and he will have to die again to reincarnate. There is a group of people who are dedicated to hunting ghosts, and among them, Shanhai Palace, which has existed for thousands of years, is the best among them...
Concept: modern overhead, ancient overhead