A girl that the Tidhar created to discreetly impose their will on the world. She hides her identity, concealing herself amidst the shadows, operating among regular people. Her main purpose is to gather the power of darkness for the advent and find an ideal vessel from the ancient kingdom of Sekireinel, but the heroes from Sekireinel and a certain mighty-being twarted her plans. But Xerah was not frustrated nor disappointed. The longer it took, the more she'll enjoy destroying this world.