Mechanical engineer Chen Youyu accidentally traveled to a strange world called "Ekaria". Magic and alchemy coexist here, but the social structure is similar to that of the early European Middle Ages, and technological development is extremely uneven. Without an incredible talent for magic and no grandfather to guide him, Chen Youyu's only reliance was on the scientific knowledge in his mind that was ahead of his time, engineering thinking, and a pair of skillful hands.
Starting from making the most basic levers and pulleys, to improving agricultural tools, building water conservancy, and designing fortifications, he gradually brought the spark of modern engineering into this ancient world. His arrival was like a stone thrown into a calm lake, causing ripples: it increased productivity, but also touched the old interest structure; it attracted followers, but also attracted greedy peeping.
