Kyoko is a wind spirit, a kazekami. She is also a ninja. She is not a princess, as Kublai Khan thought before Kyoko stabbed him in the gut. He was trying to be amorous with his newest concubine. She was trying to prevent the Mongol invasion of Japan. As Kublai dies, the kazekami torments her husband by recounting how she has managed to seduce scores of his rare and beautiful wives.