Twelve years ago, a mysterious pillar of darkness erupted off the coast of Japan. Giant dragon-like beasts emerged from the darkness, first wiping out the naval force investigating the disturbance, then each other, in a spectacular magical battle caught on videotape by a Japanese couple on the mainland. In the present day, their twin children live in a largely deserted metropolis where the subway has only one destination: "The Inner World". Following in their parents' footsteps, they encounter strange creatures, powerful magic-users, and, of course, chocobos. But where have their parents gone ... and what are the motivations behind the joining of the worlds?<br />