[A particularly astute observer (so, Hyoubu) may notice that Kaoru's gaze seems to flick toward the window a little before the tapping noise can be heard, sharp and focused.
Of course, the expression that follows soon after is only confused and surprised because gosh! What a shock!! Some guy appearing outside the window! Why does this keep happening, that's the most important question here...]
Hyoubu-san! [Which, likewise, can probably be heard through both the CereVice and the window itself. No move to actually open the window is made just yet, but Kaoru hesitantly shuffles in that direction, at least.]
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Of course, the expression that follows soon after is only confused and surprised because gosh! What a shock!! Some guy appearing outside the window! Why does this keep happening, that's the most important question here...]
Hyoubu-san! [Which, likewise, can probably be heard through both the CereVice and the window itself. No move to actually open the window is made just yet, but Kaoru hesitantly shuffles in that direction, at least.]
What in the world are you doing?