Isagi Yoichi and Itoshi Rin are two werewolves who live in the darkness of the forest. they are predators who will devour both animals and humans they find in their path. Itoshi Rin, the werewolf is cold, tough, very serious, and very vicious. Isagi yoichi, the werewolf with a outside kind, friendly, calm friendly, but his inside he's cunning, manipulative, and vicious.