The lower part of the world is inhabited by the Elyos of the Seraphim Lords and is blessed with sunlight; the upper half, inhabited by the Asmodians, Shedim, only receives a fraction of the sunlight. Because of this separation, both factions have become bitter enemies, blaming each other for the destruction of the Tower of Eternity and their world, and each side believes they have to destroy their opposition to ensure their own survival.
Now, a three-sided war is waging between the Elyos, Asmodians and the Balaur, with the main focus for each faction being the control of the Tower of Eternity. Communication between the god Aion and the Daeva has ceased, and while nobody knows what happened to the god Aion after the tower was destroyed, both factions know they have to prevent their part of the Tower of Eternity from being destroyed in order to ensure their survival.
The players take the role of leading characters of each faction, starting out as lowly soldiers, eventually realizing their power and potential, becoming more and more powerful and rising in the ranks of their race's military to eventually become Generals of the army they fight for in this three-sided war.