The story follows a kitsune. A character named Mercury, who meets up with a rogue bounty hunter sergal named Milo. An unfortunate twist of events happens as Mercury and Milo discover a greater power that could result in the suffering of the world and the death of million innocent lives. Along their journey, Mercury and Milo make acquaintances with others to aid them along the way, in search of the greater evil, and to exterminate it before it can take hold of the world.