Nine Out and Thirteen Back

Do you want to be invincible? Do you want to dominate the world? Do you want to live forever? Do you want to marry your beloved? As long as you want to, just sign and make a pledge, the supreme magical power, magical elixir and artifact are all yours. You have agreed in advance that I will lend you something, and you will return home every time you leave. If you borrow something, you will return it. It will not be difficult to borrow it again. I operate on a small budget and have a good reputation in the universe. I am Shu Li, a machine who only talks about business but doesn't get any love.