Shōji Sudō is a one-eyed retired policeman who has an intense hatred for the Great Danes Hōgen and Genba. 3 years ago, he and his partner, Tanuma, were in the Southern Alps on a mission to capture a criminal. There they found an abandoned kennel. As they inspect it inside, they saw Hōgen and Genba standing on the pile of dead bodies eating a dead human. Then, the hungry dogs attacked the policemen. Though Shōji only lost his left eye, Tanuma was mercilessly mauled to death by Hōgen and Genba. Fuelled with hatred, Shōji swore to hunt down and kill Hōgen and Genba for the loss of Tanuma.