It was the 21st century. Humanity was the same as it's always been. Until the unavoidable disaster, a historical event that changed the course of humanity forever took place.
An unforseen meteor struck the earth, terraforming a large part of the planet's surface into what is now called the outalnds. Over half of all life on the planet was lost, with only a few million humans surviving. Some underwent various kinds of mutaitions as monstrous creature began to rise up from the earth. It was like magic, something unexplainable by human science.
Days after the Chaos settled, the surviving humans did what they could to build up a stable society with the remaining useable resources. In a couple years the populace was complete. It was basically a conglomerate of 32 different cities and various islands within an area of 67,800,000km² that wasn't terraformed. It was all ruled and overseen by one government, a round table of 12 leaders called the world leaders.
The world's population had grown to almost two times what it used to be after the event, reaching 62 million. By then the monsters had spread all around the world, to combat them, the greatest minds of the populace came together to create the most powerful weapons ever developed by man. They were called the cyborg sisters, three female soldiers built by the earth's best to protect the populace. Society was stable and growing again.
But that doesn't mean the absence of occasionally tragedies.