Taka, a sickly high school student, travels to Hokkaido looking for a magical cure and ends up with Khoo Fu-Ling, the king of the fairies. The fairy realm of Ninfidia is being attacked by the evil Queen Mab, and Taka must save it. It incorporates elements from legends of King Arthur and the Knights of the Round Table, along with fragments of Celtic, Greek, and Ainu myth.