King Fury (「怨霊王」?; Onryō-Ō; Vengeful ghost king) is a demonic being who was brought back to life by Akuro. In the past, he was betrayed by the people he aimed to help and sought revenge upon mankind. It is revealed that he was a member of the Moon Tribe and his real name is Sugawara. He is first seen in Sei'an City taking Kagu to the Underground Ruins for her miko powers.