This book is the experience of a Chinese farmer abducted by a technologically advanced extraterrestrial race. From his memory, Zhang Xiangqian described a civilization capable of uploading their consciousness to the Cloud in order to achieve immortality, thanks to their artificial field technology and excessive IT infrastructure. However, the Guoker race appears to spend no effort exploring the spiritual world, so life experience is prioritized over all other factors, and they fully embrace their inner dark side without any restrictions we humans need to comply with every day for our lifetime. Zhang was experimented on and tortured but also freed himself from indulging in the obscene Guoker lifestyle during his visit. You may have the feeling that Guoker is a race far from benevolent, but I suggest the point that this book allows us to view a possible future of our human race - how our society, especially the economy, power structure, and lifestyle of everybody.