Many years ago, Earth turned into thousands of islands floating in the air. In the new world, peoples of Aspya used to live in peace… Until vicious raiders invaded their homelands.

You are Eva—a proud daughter of the Earners. The Kain's Falcons, cold-blooded bandits from the Desert Lands, destroyed the Earners’ Fathership and took your old man’s life. Driven by revenge, you have to rebuild your aerial home “from the deck up”, arm and prepare for battle.

However, the Kain’s Falcons are not the only threat you are about to face. Somewhere in the depths of the Black Skylands, the mysterious Swarm lurks…