In a world where werewolves exist, the armed forces are ordered to find as many of these "strongest" as possible. Ore's best friend, Neil, is a doctor and researcher who is tasked with going to the nearby forest to scout the situation. When Neil does not return, Rood goes into the forest to find him. In search of his friend, he encounters a werewolf named Gio, who takes care of a little sick Theo. What kind of future awaits these two different creatures?