A member of the Daigon dynasty of Demons, Ka has been around for a very long time. He possesses items of clothing, earning him the title of the Killer Coat. Ka devours and feeds on victims to grow his strength and has been searching for an ideal host, someone whose mind can easily be manipulated. Ka aims to bond with a host in order to fully manifest his power in the real world.

Ka was hunted down by Gabriel Cushing's father but ultimately managed to kill his pursuer. Now Gabriel seeks revenge and has tracked Ka down, at long last. But in the confused and direction-less Luke, Ka may have finally found his ideal host. Will Gabriel be able to stop the terror of the Killer Carnivorous Coat?