In her nightmares, demons torment Kana. Along with Reiji, who draws demons towards him, they shatter the age-old enchantment, freeing one hundred malevolent spirits. For their transgressions, Bishop, the overseer of these demons, has exacted punishment upon them. As dawn breaks, Reiji transforms into a steed, while at nightfall, Kana morphs into a bird. To lift the curse, they must subdue all one hundred demons and secure them once more.