Cashback on Consumption Makes Me the Richest Man in the World

"Ding, the host spends 100,000, and the reward is 1 million." "Ding! The host spends 2 billion, and the reward is 20 billion." Lin Shiyi, who had graduated two and a half years ago, saw an old man lying on the road on his way home. He kindly helped him up, but was extorted of 10,000... When he woke up the next morning, Lin Shiyi found that he was bound to a system, and he got ten times the rebate at the beginning! From this day on, his life has undergone earth-shaking changes. He has a lot of money, beauty, power, and everything he should have... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.