There are four people like this. As long as you are willing to pay enough money, they will help you do anything. As long as you accept the task, it will be completed.
Author (curious): Why is there no record of failure?
Four people: Don't take on tasks you're not sure about.
Author (Khan): Just say money.
Xiao Xun, the one who is responsible for negotiating business among the four people: If you have to pay enough money, it will be enough if I say enough.
The author sweated and crawled away.