Engineering expert Sean Williams transmigrated into a parallel world and found himself in Ninelea Village, Cloudfen County, within the Weavorn Dynasty. Reborn as a nobody craftsman, he faced execution under the dynasty's harsh laws—for at 27, the original host remained unmarried. But fortune struck immediately: the authorities arranged a marriage for him. Leveraging modern technology and innovative thinking, he embarked on a meteoric rise, ultimately uncovering his true identity as the lost emperor. Preferring a life of unfettered freedom, he relinquished the throne to his sister and departed with his four pregnant wives, embracing a carefree existence far from the court.