Chrono Crusade - World Flesh & The Devil (Vol. 3)
As the forces of darkens continue their war against humankind, the depth to which the human soul can be corrupted becomes the catalyst for a nightmarish series of events.  The horns of a devil take root in a child of God, a Devil's bargain is joined and Aion's monstrous plot to conquer Heaven itself advances one step closer to fruitition.