After the sudden death of Chen Zhan, a doctoral student in engineering, he wore to the Dayong Dynasty, and only by promoting social development can he obtain merit and continue his life. Isn't this a tailor-made task for engineering students? Understood, this is rejuvenating the country with science and technology! Even if you don't know history, you can unify Europe and Asia and colonize the world by climbing the science and technology tree and developing industrialization! But is it really that simple? When Chen Zhan first came, he thought that Dayong's biggest enemy was the rebels, so he pacified the rebels, but ...... It was the flood and the plague that became Dayong's heart again. He used work for relief and built water conservancy, but the emptiness of the treasury became a problem for Dayong. He improved salt and iron to enrich the treasury, but the monopoly of the family became a problem for Dayong. He pointed out the printing press and used the imperial power to balance the bureaucrats, but the big clan became a problem for Dayong. After some hard work, science and technology have become a tool of exploitation for the powerful, and the dividends of development have not allowed the people to drink a mouthful of soup! Only then did Chen Zhan discover that Dayong's troubles were not outside, but in the imperial court, among the imperial relatives and ministers! And those celebrities and gentlemen, although they stand on the dry shore with a high sound, are they so clean? The people handed over the country to the emperor, but it became like this, Chen Zhan was heartbroken. Since technology can't save Dayong, he decided to ......