The Emperor's Master from a Poor Family: from Chemistry Teacher to the Mastermind of Jiuding

Jiang Tao, a modern chemistry teacher, traveled back in time to the ancient Yan Dynasty and reincarnated into a poor peasant who had been poor for generations. His predecessor was chased by bandits when the thirteenth princess (Zhao Wuji's sister Zhao Wushuang) escaped due to the turmoil in the dynasty. After that, she was rescued and married by her upright and brave predecessor, but she also died of injuries and died soon after. With no harvest, the landlords exploited him. He used modern knowledge to start from the most remote mountain village, manufactured all kinds of goods, constantly suppressed the surrounding bandits, built a business empire, and helped the ninth prince Zhao Wuji (whose mother died young, was frail, had no backing, and was transparent) to successfully seize the throne. Finally, he returned to the original small mountain village and fell in love with the thirteenth princess and lived in seclusion.