Yagyū Genjūrō Hiroaki is a member of the Yagyū clan, a famed Japanese clan of sword masters that protects the Japan. He is a Human/Yasha Hybrid, who is the 2nd son and 3rd child of the Head of the Yagyū Clan and Daughter of the Kanto Youkai Clan located in Kyoto. Under complicated issues, Hiroaki left the house in order to get away from the clan's discord and searching for his older brother, Hideaki who suddenly disappears before he was announced to be the next head of the Yagyū clan.