Chen Yi, a modern scholar, is obsessed with time-travel novels. In order to one day be able to travel to another world, he frantically studies poetry, songs, military strategies, livelihood and medical skills. After an accident, he traveled to a parallel ancient world as he wished and became a free prince with a different surname. However, this identity is not as carefree as it seems, but is full of dangers. Chen Yi knew very well that if he could not make the fiefdom self-sufficient within three years, he would not only be deprived of his status as a prince, but would also face the threat of invasion from neighboring countries.
Relying on the knowledge accumulated in his previous life, Chen Yi began to make drastic reforms. He improved seeds, built water conservancy projects, increased grain production, and provided food and clothing for the people. Later, he introduced modern industrial concepts, established textile factories, ironworks, and machinery factories, and started the industrial revolution. However, this series of measures touched the interests of the conservative nobles. They regarded Chen Yi as a thorn in their side and obstructed his reforms at every turn. Li Shangshu, the minister of the DPRK, secretly colluded with neighboring countries in an attempt to frame Chen Yi; local tycoon Zhao Yuanwai incited the people to boycott factory construction; even Chen Yi's cousin Chen Ming betrayed the family out of jealousy.
Faced with many obstacles, Chen Yi had to find a balance between conservatism and innovation. On the one hand, he used his prophetic advantage to resolve the crisis, and on the other hand, he made like-minded allies, such as loyal old housekeepers, talented craftsmen and enlightened local officials. At the same time, Chen Yi also faces emotional entanglements: the eldest lady of a rival family is gradually attracted by Chen Yi's talent during the confrontation, and the maid who has been silently supporting him also develops a secret love for him.
With the deepening of industrial reform, Chenyi's fiefdom became increasingly prosperous, but it also brought new social problems: traditional handicraftsmen lost their jobs;
