The story takes place in a country by the name of Popolocrois in which the people live peacefully. King Paul is a kind-hearted man who entered into a marriage with one of the daughters of the Ryuu clan, Sania, in order to overcome the barriers between the different races. The Queen soon gave birth to a child, Prince Pietro, who will play a significant role in bridging the gap between the humans and the Ryuu clan.
