Fifteen years ago, a bloody rebellion erupted in the Holy Radiance Empire. Empress Victoria fled with her six-year-old son, Prince Arthur. In a desperate bid to draw away the pursuers, Arthur split the royal crest, the Star Emblem, in two. He fell off a cliff, lost his memory, and was forced to grow up among the commoners. Fifteen years later, Victoria ascended the throne as Empress and mobilized the empire's resources to find her son.