Since the Begenning, mankind's malice created a dark energy (inga) that seeps into the makai world. It's through that world that exists paraistic and predatory demons called Horrors. Ever hungry for more inga, they cross through the human world to possess and devour people to satiate their hunger. However a group of people created by the Makai Order to fight them. Consisting of priests and teenagers, they are the shadows that protect humantiy from the horrors.
