Clay traveled through time and became the eldest son of a down-and-out earl who was about to go bankrupt in the Middle Ages. His family loved him very much, but they were unable to change the family's fate of decline. Fortunately, he is bound to the [Civilization Development System]! Starting with a "Basic Agricultural Revolution Knowledge Package", he started by improving farming, shocking his family and wealthy territories. While the surrounding nobles were still riding horses and wielding swords, Clay's territory had already built waterwheels, windmills, and even... Steam engines! He built a technological empire with one hand and conquered all kinds of beauties with the other. The princess fell in love with him and the queen was impressed by him! See how Clay used the knowledge of the earth to launch the industrial revolution in the Middle Ages, and finally reached the top of the continent, sitting on top of the world's beauties!