The earth was ravaged by a natural disaster of unknown origin, and a large amount of mysterious minerals - "Origin Stones" - appeared in the land swept by the natural disaster.As technology continues to advance, the energy contained in the Source Stones is used in industry to bring civilization into the modern age."The Infected are beings of power and misfortune, and now some of them are trying to integrate with the Source Stone to bring a new order to the earth.This conspiracy of war and fire will be a new obstacle in our fight against the natural disaster.