Kaze no Stigma: Kouen no Miko

Four years ago, Kazuma Kannagi was defeated by his cousin, Ayano Kannagi, in a battle for the right to become the successor of Enraiha, a sword that has been passed down through the Kannagi family. His defeat, combined with his lack of talent for Enjutsu—the fire arts, which is also the Kannagi Clan's specialty—led to his banishment from the family. Now, Kazuma returns under the name Yagami Kazuma, having become a skilled master of Fuujutsu, the wind arts. At the same time, a series of murders at the Kannagi residence, committed by a powerful practitioner of Fuujutsu, have cast suspicion on him. (Source: Wikipedia)