After transmigrating to Great Qin, Lu Que becomes a lowly county magistrate and awakens a Corrupt Official System. For every thousand taels of gold he embezzles, his lifespan increases by one day. As it happens, his life is bound to the First Emperor's, and they share the same lifespan.
Ying Zheng: “As long as Lu Que doesn't die, I won't die? If he keeps embezzling, does that mean I can live forever?”
From then on, Ying Zheng is over the moon. “Minister Lu, your county doesn't have enough fat to skim. I'll take you to Xianyang, where there's plenty.”
The officials of Great Qin: “Your Majesty, Lu Que is insatiably greedy. He's emptied the treasury, docked our salaries, and started charging at the palace gates. We even have to pay to attend court! We beg you to execute this corrupt official!”
Ying Zheng: “Is Lu Que the only corrupt official in all of Great Qin? Why are you always picking on him? The treasury's empty? Then find a way to raise the money.”
“What? He's embezzled all the money in Great Qin?”
“Send out the troops and wipe out the Xiongnu. Then march west. I will conquer a vast empire and give Minister Lu all he can embezzle.”
The Qin Dynasty? It was strong when facing the strong and weak when facing the weak. This is completely different from the title of your book. It says you can gain a day's life by being greedy for a little something... It says you can gain a day by being greedy for hundreds of taels of silver.