Good that she remains quiet, because Kaji had no intention of explaining his reasons. Not until they get there, and maybe not even then. Instead, he shoots Tifa another smile at her last words. "And that's always the risk you have to balance. I wouldn't be surprised if they arrest us even for a short while until they decide they can use us. This plan might be completely over before it's begun, or it might take a while to even start. Keep on thinking that. If we were planning to betray the Heroes for real, getting arrested and used against them would still be a possibility."

"I survived before by remaining too useful for anyone to put a bullet in my head. But that balance takes time to build up." It actually makes Kaji feel better about bringing Tifa along if she understands the risks, and knows just how horribly this could go.