The 100x Rebate Billionaire

Ethan York binds to a bizarre system. He starts with a 300 billion debt, to be paid within four hours, but spending increases his credit limit by 100 times. Starting with 3.6 yuan, he becomes the world's richest man, controlling three major banks and The Four Cardinal Conglomerates. He puts rich kids in their place, and saves his childhood sweetheart Dulcie Dawson. He triumphs over opponents. His true identity is revealed, achieving success in love and career.