Have you ever thought that in this modern world with advanced technology, there is such a group of people who shuttle between you and me without us noticing, killing evil spirits invisible?
Have you ever thought that behind many accidents are the claws of evil spirits?
Have you ever thought that there is a pair of resentful eyes staring at you in a corner?
The world around humans is not safe, and the evil spirits lingering in this world need to be eliminated.
Humanity needs them! "The lonely brave man of the night", "the scavenger of the dark night" - the soul-killer!
