The kingdom of Lucis is a magical realm boasting the world's last remaining crystal, a source of incredible power. Yet the ominous Empire of Niflheim threatens to steal the crystal and dominate the land. The fate of Lucis rests with the Kingsglaive, a formidable battalion led by King Regis, who negotiates a perilous treaty with the imperial army. As the imperial army demands King Regis' son, Prince Noctis, marry their captive, Princess Lunafreya, and cedes his kingdom to Niflheim, it becomes clear that they will stop at nothing to conquer Lucis. With the Kingsglaive corps as the last line of defense, the stage is set for an epic battle that will determine the fate of the world.