The main character, Noctis - who is part of a lineage of kings, but is not yet king himself -, leads the country holding the last crystal, which is beneficial to the military. At one time, all the other countries also possessed a crystal, yet lost them in warfare. They pooled their resources into weapons, granting them firearms in exchange for swords and magic. A long cold war has gone on about the usage of the crystal. Recently, a peace treaty was talked about between the countries, but a group of marauders are beginning to break it.