A centuries-long war between humans and vampires devastates the planet's surface and leads to a theocracy under "The Church". Despite vampires' vulnerability to sunlight, their strength and speed make them impossible to defeat until humanity shelters in walled cities and trains elite warriors, the Priests, who turn the tide. After the war, most vampires are killed, while the remainder are placed in reservations. With the war over, the Clergy disbands the few surviving Priests, who try to integrate into city society. Outside the walled cities, some humans seek out a living, free from The Church's totalitarian control.

What happens next is up to you..