From the introduction:
The land of Ivalice is currently in a state of peace. The threat of the Occuria has passed and the kingdoms have moved on from the possibility of war. One year ago, a full war had nearly broken out between the kingdoms of Rozarria and Archadia, but today there is a tentative peace. Peace brings growth along with it, and with growth comes exploration and innovation.
Legend speaks of hidden treasures within the Purvama, basically networks of floating islands, and if Bhujerba is any indication, surely sky pirates have sufficient justification to flock towards that untouched ground. With the war out of the way, now is the time for all to take flight and explore the unknown land.
As you arrive, a sky pirate by the name of Vaan is preparing for his own journey – though his destination lies further than the Purvama around Bhujerba. Investigating a new Purvama which has appeared; Vaan will happen upon the land of Lemures and unknowingly trip off a chain of plots and schemes.
Know this, traveler. Though the world may be at peace, it does not mean that you can simply let down your guard. Explore, exploit, do what you will with the world in your time here – but know that you must survive. Well…you should probably take this with you just in case. Who knows, maybe you’ll have use for it?