Centuries ago, the entire continent of Magvel was besieged by monsters. In their most desperate moment, five great heroes received the Sacred Stones, powerful artifacts whose light drove the darkness away. These heroes founded the nations that, to this day, house the Sacred Stones. Now, after centuries of peace, one of those nations, the Grado Empire, has invaded its age-old ally, the kingdom of Renais. The royal twins of Renais flee their homeland and fight to discover the Grado emperor’s motives. All the while, an ancient evil lurks in the shadows, waiting for its moment to strike.