As she prepares for her university entrance exams, Tsukina worries about her newly discovered nature as a werewolf, and how it makes her different from other people. To learn more about her kind, Hayate invites her to the winery run by his family. They're all black wolves who believe in living alongside humanity, and Tsukina feels comfortable for the first time. But the peace doesn’t last. A mysterious white wolf starts fighting with Hayate over Tsukina!