From the Start, I Had a Billion Dollars to Use as Toilet Paper

A survival game. A contest between all races. The only rule is survival. In the endless desert, Zhang Xiaobai starts with a billion dollars. Back on Earth, everyone would probably go crazy with joy, but this is a survival game. A billion dollars is ten tons of waste paper. It takes up space, and you can’t even use it to start a fire. All it’s good for is toilet paper! And then the things that come next get more and more outrageous: a hundred tons of gold! A trillion dollars’ worth of diamonds! ... In this world with no water or food, how will Zhang Xiaobai survive?