All was well in the enchanted land of Belkan until the creature plagues began to run rampant. But it didn't stop, as a demon warrior, Nausizz, emerged from the depths of the mountains of Gracia and led the charge, destroying settlement after settlement. However, a brave warrior named "Journey Knight" has come a long way in his quest to stop these monsters. After the help of Dio's Poor Village of Caterdragon, the knight makes his way to Pulistu Castle, but as the king reveals the problems they are facing, an elite dark knight appears and kidnaps the princess. The knight fights his way through enemy lands in the tower of Matius, in the fortress of Gouda, on the battleship of the Earth, and finally passes the entrance to the world of the devil. Along the way, he is helped by the loyalty of the kingdom. The Knight fights through Castle Gracia and comes face to face with Nausiz. Being a demon with honor Nausiss is so impressed with the knight's progress that he sends the princess back to Pulista. When the knight defeats Nausiz, he turns into an evil dragon demon. The knight kills him and flees the crumbling castle. Back at Pulista's castle, the knight is invited to come and live with the king. The world can go on again in Belkan.