Something's rotten beneath the surface; devils roam the streets beneath the notice of ordinary humans and the government bureau responsible for handling them, the Department of Occult Affairs, is woefully underequipped to deal with the situation.What's a shady government organization to do? Conscript high schoolers, of course. Enter Charlie, a seventeen-year-old boy whose sorcery manifests in the form of seeing the world as a video game. But sorceries are always backhanded blessings, and nothing is ever as it seems.