While My Girlfriend Went Home for a Matchmaking Date, I Spent a Billion on Her Best Friend

Unemployed, gravely ill, and betrayed by his girlfriend. After Lu Yuan suffers one blow after another and loses all hope, he unexpectedly activates a cashback System. As long as he spends money on women, he gets cash back, and the higher their looks, the bigger the payout. From then on, he rises to the top. His ex-girlfriend begs for forgiveness? Sorry, you wouldn't give me the time of day back then. Now, you're the one who can't measure up to me! This novel is also known as: “Spend Money on Her and Get Rich, Now My Ex Is Full of Regret” and “Simp's Comeback? I'm Just Making Money Appear.”