 Alternatively, he can choose to create his own faction in opposition to the other three.Erwin begins the game on the side of the Descendants of Light, fighting against the Rayguard Empire, which has enlisted the aid of the Dark Lord Böser in the interest of unifying the continent and putting an end to the wars which plague it, unaware that Böser is chiefly responsible for the conflicts.To unify the continent, the Empire needs the power of the two legendary swords, Alhazard and its anti-type, Langrisser.