Earth in the year 2150.
In bright days and peaceful times, the people who're still doing their activities with spirit but too bad this day become their last happy day since big change will happen to this World we call Earth.
In the afternoon where people relax after their tiring work suddenly they become startled because of a massive number of meteors descending into its surface Worldwide spreading on Earth without warning.
Every human trying hard to survive from meteor descends, but no matter how hard they run, the meteor explosion is still spreading to the point nearing their location in an instant.
The aftereffect of that disaster is giving Humanity despair because almost 80% population within the World is wiped out by Meteor disaster.
Since then everything within the World has evolved without giving Humanity time to react except futile resistance, with that another 10% population is wiped out again, and the population that lives within the World is just 10% and most of them are strong people who have an iron will.
After that disaster time, we call it the Dark era, the Earth entering its new Age with the most activity of a human is within the Thick wall for their safety protection.
Since the Earth is entering its new age, that year is known as Year 0 New Age.
Earth is now divided into the Four Giant Organization which is recognized by the World, which is Asia Federation, European Federation, Western Federation, and Black Federation.
This age Racism always happens, because of the Earth Force is divided into four forces since then, Every Organization has the same goal that is to protect their own people and pursue their own prosperity.
Besides the Four Formal Organization that has been recognized by the World, there's one Giant Organization that is acting with a different goal.
This Giant Organization named as Neutral Federation, within this Organization there's no Racism nor unfair treatment because within this organization all members are peace lovers that see humanity as one race.
Everything within this organization is beautiful with its peaceful lifestyle, but the demerit of this organization is that they don't want to meddle with other organizations' business.
They just focus on fulfilling their member's peaceful life while hiding from the world surface, and this organization activity is rarely seen unless there's a victim of war or people that have been discriminated against.
All four formal Giant organizations are always trying to infiltrate this organization, but all of it is just a futile attempt because once their spies entered their place, they can't come out anymore and their cause has always been a mystery to them.
The Four Giant Organization is at war with one another, but since there's a new organization known as the Neutral Federation, they choose to create war game events once every 10 years.
The Four Organizations choose the method for war by sending 5 of their strongest members to battle within known independent spaces that have appeared since dark age.
From the surface, this Four Giant Organization always prioritizes their people but inside each Organization always have corruption so the civilian still likes an ant within the eyes of Rich people like what has always been since ancient times.
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Currently right now is Year 30 New Age.