Billionaire System: Spend Money for Cashback, Buy Your Way Across the Myriad Worlds

[Tycoon System + Get Stronger by Spending Money + Satisfying Read + Fast-Paced]

Ling Chen was an ordinary young man, abandoned by his girlfriend and buried in debt. Then he unexpectedly bound himself to a "God-Tier Spending Rebate System" and got ten billion right from the start! From then on, there was only one word for his life: awesome! Spending money made him stronger!