After undercover demonology studies go awry, creatures dubbed Wraiths begin to emerge from the depths of the underworld, wreaking havoc on an already fragile humanity. A discovery comes, giving spirits of the recently deceased the ability to be transmuted into objects called Utilities. Utility and Wielder pairs begin to pop up, towing the line between the Wraiths and Humanity and looking into the tumultuous rift that separates them.