It's been 14 years since the Great War. The Demon clans have been scattered. The Human Empire seeks to annihilate them. The Brotherhood of Shadows, a band of Demon warriors, seek to return their people to the light, by any means necessary. Two swordsmen form an unlikely alliance. The angel fights for peace between Humans and the Demons, his blade hiding a weeping soul. The Demon fights for vengeance, whose youth masks his deadly skill. Together, they'll attempt to stop the world from ripping itself apart.