During the reign of the millinium beasts a meteor hit earth. It was the end of the millinium beasts and their rule. The impact of the meteor created the first humans. Their birth into the universe created a new batch of timelines in the universe. This was because humans have a way of combining their energy and redirecting it to their central brain. This developed them from time to time. Since the possibilities of human-developments were many and so their time lines were also spreading and dividing like a spider- web.
During the 3rd world war the ultimate energy source known as Aura was released and human evolution had a new turn. And this turn was not somthing to be worried. Aura got implanted into their souls and gave them immense strength. But not everyone used their power for good. When the human race settled down for peace, they didn't know that their peace would only last for a few centuries