Traveling through the Tang Dynasty, he was exiled to Lingnan at the beginning - before Qin Yinquan could complain, the barbarian army was approaching the city, and he was pushed up the city wall to be used as cannon fodder! System activation: farms, pastures, mines, steel plants, technology trees... As long as the territory is large enough, he can carry Datang into the industrial revolution! While the border barbarians were still sharpening their swords, he took out a repeating crossbow and cement in his backhand. The civil and military officials of the entire dynasty were waiting to see him buried in the wilderness, but he built a steel fortress and made the Wuzhou caravan obediently pay protection fees. Three months later, Chang'an urgently reported: The exiled boy has created a world of heaven and earth that makes money every day, and even His Majesty the Emperor wants to come and invest in it!