Elteno of the Black Flame is one of the Seven Elder Demons.
She is the first to be awakened by Lapshia Lune; seeing his great usefulness, she quickly adopts the young magician as a servant to help her release her sisters.
Her personality is proud to the point of arrogance; she remains firmly convinced of her own superiority, and of the inferiority of the lesser races around her. However, she is unable to resist proving that superiority by pitting herself in battle against anyone whose strength might rival hers. In combat she is a formidable opponent, wielding flames hot enough to vaporize a human being.