I Discovered the Secret of the World

Cities appeared one after another in the sky, which were actually consistent with the cities on the ground. Who would have thought that the cities in the sky were falling at an extremely fast speed and all the lives were being destroyed. The invasion of aliens led to the beginning of the apocalypse, but the awakened ones who affected the world were sealed in pieces of colorful glazed stones, waiting only for the blood of the human race to unlock the seal and regain the position of dominance.