Cosmos, the goddess of harmony. Chaos the god of discord. Two divine powers locked in an endless struggle, each seeking to reign supreme.
Long has the world played stage to their violent conflict, now at peace, now teetering on the verge of annihilation, but never for a moment striking a balance between the two.
The scars of war run deep across the realm. And still these battles rage on, a tempest the eons cannot quell.
Lightning is Serah's older sister. Three years ago, a Pulse fal'Cie gave her a Focus - an order to destroy Cocoon. Alongside her companions, she resisted her assigned fate and protected her floating home, saving millions of lives.
Shortly after the events of Final Fantasy XIII, Lightning disappeared. Many believed that she gave her life in return for Cocoon's salvation, or that she was trapped in the crystal pillar with Fang and Vanille. Serah, however, has a clear recollection of seeing her in the aftermath of The Fall - and firmly believes that Lightning is still alive.