After the [Great Disaster], the seven continents sank one after another in the flames of war and curse. The distant continent of Atlantis, Atlantis, rose in the dawn of destruction. Alien intelligent beings, the Atlanteans had a life span of thousands of years. Not long after he ascended the throne, their bloody king launched a war to destroy the original human race... The remaining human nobles sold their souls to the devil Satan in order to obtain 50 years of peace. However, as the deadline for the soul contract approaches, a war to save the soul and the race is about to begin in unrest...