This is a world where humans, ghosts, demons, demons, and immortals coexist. When humans and immortals have nothing to do, they just catch ghosts and subjugate demons. If the ghost has nothing to do, he will go to the mortal world to bully the weak and cause trouble. The demon is fine, try the seven emotions and six desires. The devil is fine, let's go have some drinks with the gods...
Intention: do it and cherish it