Edge is one of the soldiers in the service of the mighty Empire. The Empire has recently ordered some excavations at ancient ruins, trying to discover the secret of an old technology that is much superior to that of present time. During the excavation works, Edge encounters a mysterious young girl. He then witnesses the murder of his captain and other soldiers by Crayden, one of the Empire's officers. Coming into contact with an ancient dragon, Edge begins to roam the world, determined to find Crayden and avenge the death of his comrades. Nobody helps him but his faithful dragon. But the Empire is also after Crayden, so there appear to be at least three sides in the conflict - or are there more?