The world of Spira, home to the high summoner Yuna Braska. She, along with her Guardians defeated a creature known as Sin. Sin had terrorized the people of Spira for over 100 years until Yuna defeated it with a powerful creature known as an Aeon. For several years now Yuna has lived in peace in a small village on an island called Besaid. While in a world completely different to Spira, Lightning Farron has saved her home, the floating paradise of Cocoon, from crashing into the lower world of Gran Pulse. Lightning along with five other people stopped a Fal'Cie's plans to summon a entity known as the Maker back to the world. Both are unaware that one thing from Spira will twist the fates of these two people and they will have to start a new adventure to save their world from Sin, the Maker and everything that want's to destroy the peace of two seperate world's. Join Lightning, her daughter Natasha and Yuna as they begin to gather the pieces of a crystal that holds the fate of both worlds on these three peoples shoulders.

The Planet Athena Prime is surrounded by seven moons. Six of them float around in orbit while the seventh moon is connected to Athena Prime by a pillar made of rune emerald, a valuable mineral mined in subterranean pockets on Athena II. We follow the adventure of three people trying to stop one women from causing a war between three nations and end a fragile peace. The year is 2457 and the story begins on Athena VII.