The novel "Wang Xu" is set in 2062, when the alien civilization Qion Ting saves Earth after a cataclysm with its advanced technology, bringing humanity lasting peace and stability. Qi Shuo and others discover Qion Ting's secret: it uses environmental safeguards to domesticate humanity and harvest the computing power of human thought. They form the Jin Hang Squad to resist in secret. Astronomer Su Yuan reveals the brutal truth: Qion Ting's devices are also holding back a rogue black hole that will reach the solar system in seventy-six years. Humanity faces a terrible dilemma: remain “captive in order to survive” or “gain freedom and face extinction.” Told from the perspectives of humans, Qion Ting's preservationists and compassion faction, and ordinary people, the story explores the questions of civilizational survival, freedom, and sacrifice.