Trading System: I Am a Businessman in the World of Yin and Yang

A wealthy man is kneeling in front of my door asking for medicine? "Stop kneeling, it's not that I don't want to sell it to you, it's just that this medicine has side effects and is extremely harmful." Ling Yun said helplessly. "I don't care. As long as I extend my life for another ten years, I can give you anything you want. All you want is a magic medicine." The old man kneeling on the ground begged... A certain ghost king: Is your name Ling Yun? Your legs must be exhausted after standing for so long. Let me give you a good thump... "What? You want to rob someone in broad daylight?" Ling Yun looked at the extremely dark sky "Then things will be much simpler. If you want to make money, go ahead and bite him!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.