The story is based on idea that the more money Ye Fan spends the more he earn.
In the start he earns 1 yuan per second once he spends 100 yuan he will earn 101 yuan every second.
In future he will reach a point where he will earn billions or even trillions every second.
He is an orphan he parents died in car accident and the bank seizes the property forcefully without giving him any chance.