I Use My Golden Fingers to Help Liu Bei Conquer the World

"Golden Finger + Three Kingdoms + No CP" When Zhang Qiang, a wage earner, cursed Sima Yi in anger while watching the Romance of the Three Kingdoms, he accidentally activated the system and was taken to the Three Kingdoms period. Zhang Qiang wants to use his golden fingers to help Liu Bei conquer the world, but this system is too evil! What? To conquer Lu Bu, you can only exchange for 10 bags of rice? Chen Gong is only worth 3,000 points? And a bag of potatoes sells for 10,000 points? …