…One day, the world was enveloped by a mysterious blinding light causing terrible destruction. The central continent, from where the light is believed to have originated, fell silent and slowly, demons began to emerge and spread throughout the world like a plague.

Sometime afterwards, a young man by the name of Weiss, suffering from amnesia, encounters the enigmatic Eva who tells him that he has committed the sin of deicide. In order to atone for his crime he learns that he must become the "Vessel" in which the power of the divinity he slaughtered is to be stored. This power will be used to resurrect the one whose life Weiss stole, for those who betray the divine will pay for their sins in the space which separates salvation and damnation, as will their progeny...