[The smile remains on Kaoru's face up until that question is asked, and then it slips away into a look of mild concern instead.]

I would like to head toward the school soon, or back to where Hinata-san is. I've heard that the former is something of a safe zone and I trust the latter... But my sister is still out here somewhere. [Kaoru's fingers twist together in a anxious-looking gesture, gaze dropping briefly, worried.]

I couldn't possibly go somewhere safe until I know that she will also be safe. There isn't any way that I could live with myself if she came to harm...