[Reviews contain spoilers] Deciding she wants to write her own destiny, Xion flees Organization XIII to a world called Weyard. There she bumps into a troubled warrior named Felix, setting off an adventure. The Organization pursues Xion, while Felix hunts the traitor Alex. And as these events unfold, an ancient and powerful force sets its eye upon them...

i suck at titles and summaries. of you've played either game, please read, ill try to explain along the way to those who have only played one of the two who are curious.