Hepoi, a hero from Heporis, sets out on a fantasy quest to bring down Dracunes, ruler of the dark side castles. He travels with Ryuuto, prince of Dragonia, with Miiya Miiya, a fairy who resembles a cat, and with Bunzaemon, a merchant. Together the four make up the party at the center of this 1990 adventure series, which runs for 50 episodes.