When the online store owner who worked all night to upload new products opened his eyes, he turned out to be Li Er, the sole child of a military family in Liaodong in the late Ming Dynasty. It's snowing heavily outside, and the fire inside is dim. As a craftsman of the Ordnance Bureau, he was grabbing a heavy hammer with a face full of charcoal, and his father's hoarse urging was in his ears, "This month's wages have been deducted!" Suddenly, the second brother kicked in the door and said, "Second sister-in-law is about to give birth!" The cold wind blew in with snow - this was already the fourth child. The father gritted his teeth and took out a tael of broken silver. "I will give you a reward for giving birth to a boy!" Li Er wiped the gray sweat from his forehead and looked at the hammer in his hand. In this age of starvation, he knew that some things needed to be forged more than money.