A modern engineer accidentally transmigrates to the moment when the Tang Empire is on the verge of collapse. To change the course of history and spare the Chinese people two periods of foreign rule and the humiliation they would suffer in modern times, he draws on modern political and economic systems as well as technological knowledge, exhausting every means to save this dying empire, home to the most advanced civilization on Earth at the time. In the years that follow, imperial soldiers appear on the islands of Japan in the east, on the Korean Peninsula in the north, in the Kunqian Protectorate, the Caucasus, and even the Volga basin. Their reach extends west to the Amu Darya and the Euphrates, and to Taihe City, Thang Long, Zhenla, Ceylon, Shendu, Tianzhu, and beyond. Alongside the iron and blood come the mighty merchant caravans of the Han people and countless schools of thought spreading Confucian and Daoist civilization. From then on, the great dragon of the Chinese people stands atop the world. The historical paths of many real-life figures in the book are completely changed.
