In 944, a modern iron smelting engineer fell into the North China Plain in the Five Dynasties. He spent ten years letting Huaili Village learn to live without violence, and then watched these ten years be wiped out by a cavalry in one afternoon. The two protagonists face off, with a historical five-generation texture, no cheats, and no counterattacks. It only writes about specific human dignity and the cold words: Thirty people can be saved, but three hundred thousand cannot be saved.