Chen Yuan, a modern social animal, travels through the Duanping period of the Southern Song Dynasty, using the "Encyclopedia" to improve firearms, implement the farming system, establish the "Song Dynasty Institute of Technology", and reconstruct the war and economic system of the Southern Song Dynasty in a "steampunk" style.
From business cooperation to life-and-death dependence with Su Waner, the daughter of Lin'an's richest man, she protects her love in court games, and finally achieves the double counterattack of "rejuvenating the country through science and technology + having a beautiful woman in her arms".
The smart watch carried during the time travel has functions such as barometer (predicting weather), heart rate monitoring (battlefield first aid), LED light (night signal), memo (dictating "Tiangong Kaiwu" and "The Wealth of Nations"), etc. It was later modified into a simple telegraph machine.
The "Jubao Pavilion" was opened in Lin'an, and "futures grain", "chain teahouses" and "women's arithmetic classes" were launched, and joint-stock systems were used to attract investment from nobles and accumulate original capital for the development of military industry.
Combining "blitzkrieg" and "sea power theory" with the actual situation of the Southern Song Dynasty, the "Flying Fire Army" (musketeers), the "Giant Fleet Navy" (steam-powered building ships), and even secretly built "steel battleships" in Quanzhou Port (referring to the principle of paddle steamers).
- The Battle of Huangzhou in 1235: "Navy mines" (sealed gunpowder cans) were used to sink the Mongolian navy, realizing a "hot weapon naval battle" three hundred years ahead of schedule.
- Battle of Xiangyang in 1241: Deployment of "anti-cavalry trench + grid" (a simple grid made of copper wire and sulfur), combined with "flame thrower" (improved fire oil tank
