Taiga wakes up in an unknown place, next to Niina with whom he had lost contact. Confined in a school with former elementary school classmates and their teacher, they find themselves forced to participate to a sadistic game: "The Werewolf's game".
A youth drama based on the first Yankee novel by Fuyuki Shindo, starring Hiromi Sakimoto, who is popular as a member of the Hexagon family. Aiming to be the strongest in the school, the passionate life of high school students who are quarreling is depicted.