Ye Rang traveled through time, and the system prompted: [Welcome to the dire straits of the late Eastern Han Dynasty. Before he could stand still, the refugees from Lijia Village raised their hoes and shouted at him: "Where is the food? The Yellow Turban Army from the north is coming! If we can't get food today, I will sacrifice you to the flag!" Ye Rang lowered his head and saw a incomplete blueprint in his hand - [Infrastructure System·Elementary Papermaking Technology]. [Unlocked technologies: improved curved shaft plow, hydraulic mill, concrete proportioning] He was silent, then raised his head: "Give me three days, first build the city wall to a height of five feet, and then change all your cesspits into methane digesters." The hoes in the hands of the refugees crashed to the ground. Later, Cao Cao came to the city, looked at the trebuchets on the city wall and the aroma of baking bread wafting from the city, and fell into deep thought. Ye Rang stood at the top of the city and yawned: "Don't worry, wait until I build the steam engine and unify the three countries. I will use technology to repair it."
