For centuries and entire millennia, souls languish in hell. They are tempered like steel in the crucible of endless slaughter with each other and the lower demons. After all, this is the will of the Devil himself. For an eternity, they tear their own kind into pieces, so that a moment later they themselves go to the next round of torment. But every new agony, every defeated enemy, every new circle of hell is an experience. An experience that is impossible for a mere mortal to obtain. Why is the Prince of Pain preparing countless legions of deceased souls, taught to kill their own kind even with their bare hands? And most importantly, what mission is he going to entrust to one unfortunate sinner, and why did he give him his wings?