A war over every soul wages, hidden away from mankind's prying eyes. The very essence of humanity is at stake, yet no humans are involved, only the arcane undead creatures known as revenants. The battle lies between the powerful and advanced Holous who aim to gain sway over the ethereal and the ancient yet waning Luciens who press for every spirits sovereignty and salvation. Their centuries of feuding have spilled blood over the blurred lines of good and evil, struggling for what they believe sacred. At the heart of this conflict stands Ezra, a revenant straddling each side, in both the past and present, yet knows nothing of it until the war unfolds around his ears.