Far in the future A very large planet with 8 continents among the oceans. Humanity named the planet "Planet Eittera", and humanity is now widely spread across each continent on Planet Eittera. Planet Eittera has a special resource which is the main foundation for the development of Human civilization on the planet, "Mana". *** Humanity has spread across the planet Eittera and has now established a new civilization on the planet Eittera, ranging from a small civilization to an empire. Year 121,221... This is the year it all started... Humanity is at war with each other for control of Mana, a giant global corporation, Cartella company Monopolizing 80% of the Mana on the planet Eittera, with the power of its subsidiaries, the Cartella Company has become the most powerful company on the planet Eittera.