Karla Outway (カーラ・アウトウェイ Kaara Autowei?) is the younger sister of Gaius, the king of Auj Oule who was formerly known as Erston Outway. She is a historian and teacher who tells the protagonists various things about Auj Oule and King Gaius in the sub-event "The History of Auj Oule". She is revealed to be Gaius's sister in the sub-event "Gaius the King".