When a stranger tells Kadis to retrieve the Jewel of Nisawa, little does the young prince know that his life is about to change. On the brink of eighteen, Kadis seems to have everything: the love and support of his parents and friends, and the adoration of the citizens of Kofu. But he's plagued by a recurring nightmare and an eerie feeling that he's being followed. When his granduncle, the wise Shonin, goes missing, a mysterious note from him propels Kadis and his friends into a whirlwind journey to a fabled kingdom. On this adventure, the prince faces challenges far greater than ever before.