Antoinette Jones braces herself to walk the path of a warrior, learning the true meaning of Eien's Emblem and facing her worst fears in the process. A slightly futuristic Earth exists in a parallel dimension alongside a place known formerly as ZONE, named for its four allied nations: Zumiki, Orari, Nomulai, and Erison. The nations broke their alliance and changed their names when one dreadful day, a jealous brother betrayed his own blood and slew his older brother, the king of Zumiki. Ever since, a curse has hung over the jealous prince, permanently bonding him to his dark castle and turning all his followers into beast men. Antoinette, with the aid of her friends and the teachings of her parents, must overcome the darkness that threatens to take over both worlds. But there is also a darkness that is growing in her older brother, Vincent. Will she be able to stand up against her own brother and restore peace to the worlds?