From the beginning of time, the heavenly angelic army and hordes of demons from the depths of the Underworld have been waging an endless battle for the future of all things. Now this battle has unfolded in Sanctuary - the world of people. Determined to win humanity over to their side, the forces of good and evil wage a secret war for the souls of mortals. This is the story of the War of Sin - a conflict that will forever change the fate of the human race. The brainchild of the lords of the Underworld, the Church of the Three has fallen. Now Uldyssian’s path to the liberation of the human race is blocked only by the Council of Light, headed by the Prophet, who has conquered the hearts of many. However, in fact, the Prophet is none other than the apostate angel Inarius, who considers the world he created to be his indisputable property. In the face of a cunning enemy who would rather destroy Sanctuary than let it slip from his grasp, Uldyssian is oblivious to the other contenders seeking power over his world. Now both the Underworld and Heaven know about the existence of Sanctuary... and the irreconcilable armies of demons and angels will stop at nothing to take possession of it.