Part 1
Five years ago, it was the name of the demon that crossed over the dimensional boundary and came attacking the earth.
The length of its body was five kilometers. It was a giant multi-headed dragon with a size that rivaled a small island.
During the time since humans began fighting demons approximately a century ago, this first observed demon had burned the earth's surface to ash from one end to the other in only ten days.
This event was the calamity that was called .
That calamity reduced the human population of the the world till only 10 percent remained. The countries too were destroyed until there were only ten countries remaining.
But even while that much damage was inflicted, the human race wasn't ruined.
The surviving people joined together and formed the .
took the lead and concentrated on reviving urban areas all over the world and maintained the [life sphere]. By restoring the infrastructures, the human race had recovered civilization that wasn't different from before albeit the scale had become smaller. This was accomplished only five years after the .
The [Tokyo life sphere] that was formerly Tokyo city was also one of those.
Right now in this place, around 70 million humans from a great variety of races, gathered from all over the world to live their life close to each other.
However, that restoration was something that stood on thin ice.
After the extermination of , the number of demons that came invading from the demon world didn't decrease.
No, rather, it was the passing of demons, who possessed vast power like Typhon caused the dimensional wall boundary to crumble. It can be said that the number of demons that came invading from the demon world to the human world increased.
The interior of the [life sphere] was protected by a barrier so the demons couldn't directly come in; however, it was not strange for demons that appeared outside the [life sphere] to sometimes approach for an invasion. This was the current world's situation.
Today just like other days, invaders passing through the dimension wall are instantly coming into this world.
But there exist a fighting strength that didn't hesitate in taking on those demons, possessing terrifying power, as opponents.
Equipping the magic wand and magic shield that were created from the combination of science and sorcery, they were the human magicians that could manipulate sorcery similar to the demons.