A world where people gained supernatural powers called “Echo” from Econium that arrived from space. In the village where nomadic girl Asa and her twin brother Altan live, an annual festival is being held. As children compete using their Echo powers in matches, an ominous shadow approaches the village… A grand Oriental fantasy epic begins, where warrior heroine Asa rampages across the continent and rises to become a legendary nomadic conqueror who carves her name into history!
