They were suddenly there. With no warnings from the sky, or predictions from ancient tribes. They just appeared out of thin air while you were drinking water or beside you while you slept soundly in class. Wearing gladiator-like armor, they swept away humans just like the scythe cuts away the grass. Mankind's only hope was the portals. Mystical red doors with "Safety portal" carved in white stone on its top. Oz managed to reach one. Safety came in the form of a man in a white robe. He explained that earth no longer belonged to humans and if he hoped to live a similar life from before, he would have to become strong and rich. But he had a mediocre aptitude for magic and a low perception for cultivation. He was barely good enough to be the janitor of the sect. Oz smiled at the man. "Nothing changed then," and grabbed the broom."I just have to keep on grinding."