A thousand years ago, demons and monsters suddenly appeared on Earth. They brought cataclysm to the planet. On that day, millions died and hundreds of cities were destroyed, never to be rebuilt again. Everyone thought the world ended that day, but a few cities and people survived. Now, a thousand years later, humanity has learned to restart and maintain civilization again using the combination of magic and science. But the threat of the demons, monsters, and all other manners of creatures are still there, waiting to erase what’s left of us and bring the world to darkness forevermore…