It all started long ago, when man and beast lived atop the world. Both had their own ways, nor did they discriminate. War soon broke out, driven by fear. Humans and monsters realized something-- Monsters can absorb human souls, but humans cannot absorb monsters souls. While the monsters remained at peace, the humans attacked. The war was won by the humans, who locked the monsters underground with a magical barrier. Five humans fell over the course of time. The sixth, however, brought upon a change that could mean doom for the Underground.