Female protagonist: Lin Wan (before time travel: 28 years old, chief engineer of major national engineering projects/doctor of urban planning; after time travel: 17 years old, the daughter of the director of the Ministry of Industry who was exiled due to the "Tumu Fort Incident")
Male protagonist: Zhu Gaoxu (the historical King of Han, adapted from this work: a prince who was brave and decisive, well versed in military affairs but initially disdainful of people's livelihood projects, and later grew into a prince with a global vision)
Time Travel Node: In the seventh year of Yongle (1409), Zhu Di has ascended the throne, and it is the eve of the plan to move the capital to Beijing.
Core cheats: modern civil engineering, urban planning, project management knowledge + basic physical and chemical knowledge + a fragment of "Engineering Mechanics" notes accidentally brought into the Ming Dynasty
Style and tone: professional hard-core infrastructure + court workplace games + evenly matched sweet pets