Rebirth of the Qin Dynasty Prince on His Way to the Country

I was reborn as the most unpopular son of Qin Shihuang. >In order to protect myself, I can only pretend to be a pig and eat the tiger in the court, and perform drunken poetry reciting every day. >Until that day, my father summoned me privately: "I heard that you know the art of merchants?" >I was shocked and immediately pretended to be stupid: "I can only write a few sour poems..." >He sneered: "I have found out that you are the person behind the 'richest man in Xianyang'. The treasury is empty. Please solve it quickly!" >Wait a minute, why is this plot different from what was promised?