A world similar to Earth where the supernatural live among the humans unbeknownst to them save for the unfortunate few that have encountered them.
While not all those that are born supernatural are not all penchant for evil, the vast majority simply live among the human inhabitants of the world co-mingling undercover.
Humans that have been exposed to the supernatural have been introduced in a negative fashion. Some supernatural creatures actively hunt and prey on unwitting humans; the survivors of which turn to a life of hunting. They dedicate their lives to hunting their hunters and saving as many other humans as possible.