Introduction to the work:
Modern engineer Lin Ye traveled back in time to the Zhenguan period of the Tang Dynasty. He was in a desperate situation and was on the verge of death during a snowstorm and famine. He accidentally bound to the "peer-to-peer exchange" system. He alarmed Cheng Yaojin with his hotpot strategy, and used gunpowder and sharp weapons to break the Turkic crisis, but he hid his merits and fame and attributed all glory to the Cheng family and his son. He built igloos, smelted cement, lit literary sparks in the cold night, and quietly made plans amidst the prying eyes of aristocratic families and the suspicion of the emperor. This is a lonely expedition in the cracks of history, using knowledge as a bargaining chip, and conducting reciprocal exchanges with the entire era. The dragon lurks in the abyss, waiting for the wind and thunder to rise.
