Qualitative Change of the Earth: 3 Billion Human Beings Disappeared

Overnight, three billion humans around the world evaporated out of thin air, leaving only empty cities and cold tea cups. Astronomy student Wu Zhe became one of the seven survivors, struggling to survive on the dead earth. As the investigation deepened, he was shocked to find that the consciousness of his compatriots had not dissipated, but had been extracted and transformed by alien civilization into "universal matter" and became the bricks and mortar to build alien civilization. Can a team of seven launch a final counterattack against the universe before they become "waste"?