Years ago, a legacy was born that ruled the skies. As time passed and memory grew dim, distant times progressed from History into Legend. Now, the era of human prosperity has come to a grinding halt, with all but a few pockets of civilisation destroyed by years of devastating battles. The population clings precariously to the brink of extinction, scattered across the desolate land, living in the darkest age in history.

A new Empire rules with an iron grip, and a band of rebels begins a revolt in an attempt to become masters of their destiny once again. As the world is engulfed in the flames of war, a mysterious girl on the Dragoon becomes mankind's only hope and stands alone against the empire. Her name is ORTA.