Three years have passed since Eureka and Renton saved all excistance... but now humanity is in chaos, struggling to find a new way of government, and so a new war beggins. Jay, a young LFO pilot on the Vodarac's side will be a key person in this war...

All creatures of evil have come back under the leadership of the mighty Sephiroth. Now the greatest heroes of all time must join forces to fight the incoming darkness under the leadership of the keybearer Sora... The greatest battle of all time is here.