Oh! That might be helpful to actually know, right? And maybe it'll give the robots a better idea of where to send them to get there...!

"Sensei lives in... Hakone." But it dawns on him... they might not be in Japan, right? At least, he doesn't know of any place in Japan that would look like this. That might make things more difficult, but not, like, completely hopeless. While he answered Kai directly for that first part, he turns his attention carefully toward the group of robots to add the extra clarification, "Japan."