Much like the Warden, Administrator Sugiyama (Assistant Warden Dan in The Story of Ricky) is a cruel, sadistic man who would not hesitate to abuse or kill the prisoners if they defy him. Sugiyama has a glass eye and a hook for a left hand as the result of a prison riot sometime prior to the events of the manga. After confronting Riki-Oh, who had killed other prisoners that tried to kill him, he has the Four Emperors (Gang of Four in the film) to assist killing Riki-Oh, but ultimately failed when the two of Four Emperors were slain (the whereabouts of the remaining two are unknown in the manga, though in the OVA, there were only two of them, and in the film, all four members are killed), and when Sugiyama was shot and killed by the Warden with a gas-pressured bullet that caused him to infla