What Bad Intentions Can I, an Underground Trader, Have?

Liu Yu traveled across Blue Star and became an underground trader in Xia State. Xia State Technology faced an all-round blockade led by Mi Li State. At this time, Liu Yu awakened to the super-time and space trading system. Meng Zhengfei: "Mr. Liu, can you get a photolithography machine? I'm blocked by the technology of Mi Li Country. You decide the price!" Liu Yu: "No problem. As for the price, just pay the shipping fee." Mining Tycoon: "Mr. Liu, can you get high-purity silicon? I need it urgently. Can I increase the price for you?" Liu Yu: "How much does it cost? The price is easy to say, just give me a fee." Nuclear Fusion R&D Department: "Mr. Liu, can you help solve the problem of helium 3? We are willing to set a small goal!" Liu Yu: "It's small things, small things... I'll give them to you for free." The next day, Liu Yu looked at several photolithography machines in the warehouse, as well as mountains of high-purity silicon and helium 3 cans... Meng Zhengfei, the mining tycoon, the R&D department...: "It's so cheap, can't it be a scam?" Liu Yu: "I am an underground trader, how can I have any bad intentions?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.