Constella was once a beautiful world, prospered by the twelve gods born from the stars. But due to the folly of the world's residents, the world was corrupted and was damaged beyond hope.The gods forsook the world, but one of them left behind a way to survive for the world's residents.They built the tower, Exodus, then built cities atop the clouds in the sky to serve as their new home. Although the gods had forsaken them, they named the twelve cities after the twelve gods.But soon, the corruption had made it through the tower and reached its top. Warriors blessed by the god who saved them stood their ground and fought to defend their new home.They obtained a power which they called Gemini Soul.