In the midst of a decade-long war between Mephius and Garbera, a plan emerges to end the conflict: a strategic union between the two kingdoms through a royal marriage. Orba, a former gladiator exiled by the war, bears an uncanny resemblance to the crown prince of Mephius, leading to his pivotal role as a stand-in during the impending nuptials. Meanwhile, Vileena, the princess of Garbera, harbors her own clandestine agenda to manipulate the crown prince for her nation's benefit.