At a high school where the students are literally divided into predators and prey, friendships maintain the fragile peace. Who among them will become a Beastar--a hero destined to lead in a society naturally rife with mistrust?

As gray wolf Legoshi and brown bear Riz begin their final showdown, Riz confesses to another heinous crime! Back at the black market, red deer Louis has a revelation and threatens to abdicate his leadership of the Shishi-gumi lion gang. Turns out it's even harder to leave a criminal syndicate than it is to join one. Then, Legoshi receives a gruesome offer to help him prevail in his battle with Riz...