Kujo, whose dormant vampire blood has awakened by an inherited genetic mutation, lives his life keeping others at a distance, afraid his true identity will be discovered. One day, an out-of-season transfer student, Kyo Oogami, appears. Although it should be their first meeting, Kujo is unsettled by the way Oogami watches him—like a predator stalking its prey. That same day after school, when the two of them unexpectedly end up alone together, Oogami reveals that he is a werewolf…?