In the center of the world lies the human kingdom of Radiata. People throughout the land sing of its glory. Sharing the world with the humans are the fairy creatures. Dwarves, elves, goblins and others all lead their different lives.
Although they are not exactly friends, humans and nonhumans live side-by-side in harmony.
In one small village, a young boy called Jack lives together with his sister. Dreaming of becoming a great knight like his father before him, he sets out one day to try out for the famous Royal Radiata Knights.