[Naoto listens intently to the explanation, occasionally following the boy's gaze as he seems to be looking for something. Though, Naoto cannot see anything out of the ordinary either.]

It sounds simple enough in concept, but I imagine its execution is a little more complex. Is it truly as easy imagining a line between me and my target?

Are they visible? That is, will the target be able to tell that I'm drawing a borderline between myself and them?