The Number 5

In this new world, the number five is the only one of any real importance. The 5-Nation, led by five men who had obtained unbelievable abilities by using their brain's full capacities, had overthrown the governments of all countries to prevent the biggest war in the world's history that would cause humanity to cave in on itself. Even after this what some would call 'heroic deed', they refused to step down, vowing to do whatever it took to keep humanity from repeating its mistakes. The 5-Nation split the world into 5 regions, named after themselves, all with different elements and characteristics.
For years, humanity has lived like this. They've been willfully brainwashed and ruled by the 5, and rarely stood against it. In each of the regions, however, a rebellion called the Wildmen is rising, fighting to bring things back to the way they were before the threat of war, where humans had freedom: The Days of Old. As the 5-Nation does anything to maintain their power, in the Kagu Region, one of the main Wildmen bases, Sapphira Abimael and her twelve year-old sister, Sarai, the youngest of the resistance, are working to do their share of justice.
It is time for the 5-Nation to end, and both sides are willing to fight for what they both see in their eyes as the right thing for humanity.