The search for the tattooed convicts leads Sugimoto, Asirpa, and Shiraishi to the infamous Botaro the Pirate, a man with nearly superhuman swimming abilities. Tracking him down will test Sugimoto’s claim of immortality! Meanwhile, a serial killer stalks the back alleys of Sapporo—but is he another escapee from Abashiri prison, or someone else? The murders attract the attention of Lieutenant Tsurumi and Hijikata, and a deadly confrontation is building—but this time, who is the hunter and who is the hunted?