The Eleventh Book by Raven and Seagull

After binding himself to a tycoon System, Huang Zixuan was so worried every day that he couldn't sleep. Why did this blasted money keep multiplying the more he spent?! Other people carefully budgeted when buying a car. He marched straight into a dealership with his wife and said, "A fully loaded E300, paid in full. Put it in my wife's name, and keep the change!" The System required him to spend 100,000 to reach Level 2, earning 2 yuan per second, and 400,000 to reach Level 3, earning 4 yuan per second... To make even more money, he could only buy his wife every Apple product under the sun, along with bags and houses, in a shopping spree that brought tears to his eyes. Even more absurd was the "Golden Kidney" in his starter pack! His physical abilities surpassed human limits. His wife took a marrow-cleansing pill that made her breathtakingly beautiful and gave her a smoking-hot figure, but even she couldn't handle him "wearing her out" every single day. Then one late night, his wife, once again left limp as a rag doll, blushed and murmured in his arms, "Honey, you're too much for me. How about... I ask my best friend to give you a hand?" Looking at the millions that automatically flooded into his balance every day, Huang Zixuan fell into deep thought...