In the modern society, Cheng Fei traveled through Wu De for nine years and became a poor man at the bottom. At the beginning, his family was on the verge of death, but he unexpectedly unlocked the heaven-defying lottery system and mastered a number of modern black technologies unique to the Tang Dynasty. The windproof lighter can start a fire with one click, the alcohol in the glass bottle has an unparalleled mellow taste, and the improved potato yield per acre can crush all grain types. Each of them subverts the early Tang Dynasty's cognition. By chance, Li Shimin, who was visiting privately in private, shocked the empress and the imperial army with his miraculous methods, and his fame spread to the palace overnight. He responded to the emperor's temptation without being humble or overbearing, used popular principles to comfort Li Shimin's years of worry, and used high-yielding grains to solve the biggest problem in the court. A commoner has no official position, but relies on cutting-edge black technology to control all the officials in the court, and is relied on by the emperor in every possible way.
