Following Armageddon, a terrible conflict, humanity is confronted with a new threat: vampires. The globe has been divided into factions as a result of the constant clashes between races. The New Human Empire is linked with the vampire race Methuselah, whilst the Vatican Papal State is made up of humans who are labeled Terrans by the vampires. Furthermore, despite the factions' best efforts to avoid direct fighting, extreme groups such as the Rosenkreuz Order want to reignite the battle.