Radio? [ Yeah, that doesn't look like it sounds familiar to her either. ]

That could be so, since I've never heard of either of those things before. [ Chizuru pauses, seemingly overthinking something. Then she gives him a half-awkward, half-hesitant sort of look. ] Um, not to be impolite, but.. I've never heard of skeletons walking or talking where I come from though.

[ Unless that's also some weird newfangled future thing! ]