Xiao Che, a graduate student in the Department of History, accidentally passed through his soul and became Ye Chen, the proton of the Helan tribe in the capital of the Yao Dynasty. Ten years as a pledge, he has no money and no power. His biological father regards him as an abandoned son, and the court uses him as a pawn. He is also trapped in a marriage trap and "caught in adultery", and becomes the laughing stock of the capital, "Helan Rat".
But underneath the cowardly shell is the ruthless and decisive modern soul. He used high-yielding crops to solve the family's difficulties, earned capital based on predictions of grain prices, conquered the loyal servant Mo Bo and the mute general Azhong, and gradually built up a team; he established his authority through hunting banquets, defeated court games, and won the favor of the warring generals Qin Yue and the prince, and skillfully resolved the series of plots between the Liu family and the third prince.
When urgent news came from Shuomo - the concubine Yefeng colluded with the Tuoba tribe to massacre his mother and concubine's old tribe, Xiao Che consolidated grain stores in the capital, trained private soldiers, and eliminated spies, while secretly supporting Shuomo's allies. From the dilapidated courtyard of the Proton Mansion to the power chess game in the capital, and then to the upcoming journey to Shuo Mo, he takes "dignity on the edge of the blade" as his creed, vowing to avenge his mother and concubine, seize the power of the Helan tribe, stir up the world of Dayao and Shuo Mo, and find his own way to become an emperor.