Years ago, humanity abandoned the ruined Earth. Generations later, with the planet again capable of sustaining life, mankind returned. In the skies above the reborn world, rebellious young Fam and her best friend Giselle make their living as Sky Pirates. Atop sleek Vespa Vanships, the girls dart fearlessly through the clouds, capturing and selling airborne battleships for profit. It's a life of care-free swashbuckling - until the Ades Federation attacks.