A financially poor detective and a former magic student at the Miskatonic University, Kurou is one day hired by the Hadou Financial Group to retrieve a powerful grimoire. In his search, he encounters the grimoire Al Azif, who bestows her power for him to utilize, becoming a magius, in order to fight members of the secretive Black Lodge. Although not a natural warrior, his strong sense of justice and morality allows him to effectively wield Al Azif's power and pilot the Deus Machina, Demonbane.
