An apocalypse descended to the unsuspecting Earth, together with a system mysteriously similar to the ones in RPG games. Millions died from the incoming mana. The birth of monsters signaled the death of more. The Earth as we knew it, with its comfort, wars, cultures was no more. Only thing mattered were the new world of System. But, all of this was not the concern of Odds. From the accidental(?) death caused by his own skill, he found himself somewhere else. Somewhere far more challenging. A place where those not worthy of Heaven goes. Hell.