[Kaoru actually doesn't answer her question right away. They'll walk across the entirety of the courtyard and out under the decorative bowed arch that acts as an entry point, and Kaoru starts to lead the way down a little winding path that's so small and leaf-strewn that it'd be almost impossible to pick out.

Once they're several steps onto that, though, he'll finally speak up.]

I apologize... No one will track us out any farther than this, if anyone was at all.

[He didn't sense any lurking demonic presence, but he's learned that it's better to be safe than painfully, horrifically sorry in cases like this. He casts a glance her way, guilt of some strange description written into his expression.]

...We're going to a room that's still attached to the house, but only underground. I'll know how to get to you.

[Which is, as he sees it, probably the most reassuring thing he can say.]