There are many unknown organizations and creatures in this world.
Anchi is such an organization, they specialize in protecting humans secretly behind the scenes;
Also commonly known as the Dark Red Slayer.
And ghosts are the targets of their killing;
Ghosts, also known as evil spirits in legend, will leave their bodies after death. If they are accidentally caught by the King of Ghosts at this time, they will become ghosts that cannot enter hell and linger in the human world.
However, if ghosts want to live in the human world, they must form a contract with humans, absorb human aura, and finally, slowly devour humans...
Maybe the people closest to you are ghosts...
Intention: