A demon at your service!
When you have a gruesome fate within your mind, this devil's true advocate will grant you the money needed to finish the job. Sign a contract with it, and billions of dollars would be yours to enjoy!
However, since the very dawn of a man once said, a demon always had something deceptive to its generous exchange. Not only a soul is relished by this demon, but something more provoking was intact to the contract. A challenge, it has said, as a billion of dollars would never downpour your purse for free. Of what, you ask? Unveil the secret by yourself, since a demon doesn't like to read it aloud for you.