Exorbitant medical expenses

Hearing Su Zhen's words behind him, Andrew Xiao stopped and was a little surprised.
Three hundred million, really sold?
However, the corners of his mouth soon curved up, it seemed that he had made a lot of money this time!
It turns out that the old fortune teller was right. It is better to learn more things when you have nothing to do. It is always good to have more skills!
Look, if you can cure diseases, doesn't that mean you can make a lot of money?
Using 300 million to buy...