Sanzo lights a cigarette.

"Why would I stop you from doing something?" He returns his lighter to his pocket, with a slight shrug. "The plan you laid out seems sensible, as far as it goes. If it involved murdering people or some stupid bullshit, I'd obviously have to stop you. But from what you've said I'm..." No, he's absolutely not going to say he's there to 'help', horrifying to even contemplate.

"I'm going to make sure that you can carry out the second part, so you can leave and I get what I want."