I! Time Travel Merchant: Winning the Golden Rule at the Beginning

Gu Yao, a rich second generation who has just finished the college entrance examination and is waiting for the results of the college entrance examination alone. It was on this day that he got a golden finger called [Time Travel Merchant System], and he got a five-star talent skill at the beginning - the Golden Rule. With the help of the system, Gu Yao traded materials with the base lords of the wasteland civilization, and bought and sold resources with the prophets of the magical plane... If others don't have me, I will have excellence; if others have excellence, I will be honest, and if others are honest, I will turn around. Fair trade, no bullying! ! !