Four years ago, Kannagi Kazuma was defeated by his cousin Kannagi Ayano in their battle for succession to Enraiha. This defeat and his lack of talent in Enjutsu led to his exile from the family. Now, returning as Yagami Kazuma, he has become a skilled master of Fuujutsu. However, recent murders at the Kannagi residence have raised suspicion against him due to his powerful abilities in Fuujutsu.