Jova is a Harvester, a servant of heaven charged with the task of preserving the mortal world by preventing Armageddon. Stuck in the mortal world below, he maintains Heaven's dominance over Hell by facilitating the deaths of good people and collecting their souls. Once every century, the gates to Hell open and Jova is charged the task of sealing them by vanquishing the devil himself, his own beloved brother, Luci, in a debilitating war of attrition. For millennia Jova has accomplished his mission, but this century, things are about to change. His sister, an angel of Heaven, has secretly sold her soul to Luci so that she may live in the mortal world with her estranged brother...