Lin Han, a modern social animal, accidentally traveled back to the body of a child from a poor family in ancient times. His start was so miserable that he exchanged his only food for the daughters of three criminal ministers as his wives. Faced with the desperate situation of being a poor family and being oppressed by village bullies, Lin Han embarked on a road to change his life against the odds - using modern technology to purify salt and become rich, copying Tang and Song poems to become famous all over the world, and even revolutionizing the military with gunpowder horseshoes.
The three wives went from being cold and distant to loving each other: Su Wanqing was in charge of Zhongfei and was full of wisdom and scheming, Liu Yun'er was heroic on the battlefield, and Chu Youyou was in charge of a business that was as rich as the enemy. Even the eldest princess of the current dynasty favored him and was willing to rely on the country to support him.
Lin Han's left hand is cheating with modern knowledge, and his right hand is the help of his wife group. He fights village tyrants, tramples talented people, breaks conspiracies, quells foreign troubles, and uproots the princelings. In the end, he assisted his confidante to ascend the throne and became the empress, but he took his three wives to escape the world, leaving only the eternal legend of "the emperor's teacher and son-in-law".
