Into the Infinite - The Fallen

Long, long ago... There is Light that is surrounded by many worlds. The worlds lock themselves that no other people would enter their worlds, and that rule live the many worlds peacefully and harmony. However, the world of Mortals with finite lives have so much freedom that they can do anything but cannot live forever, and they go to the other worlds around the light with the reason that they want to know the worlds outside their own world. So they go wherever they want. Because of that, the gods became unhappy of the freedom they gave to Mortals.