A lab coat. That... currently wasn't reassuring at all, and it didn't clarify where exactly Mikado was. It could be either--it could be none. Celty was the largest example of what the institute was capable of, and Izaya had insinuated just as much-- If they could return a head to a Dullahan, what else were they capable of? Was that why he was strapped down? Ah, he didn't know enough, and the thought of losing his head at all made him try to tuck it in closer to his chest... A failed attempt, and he should probably be paying attention to the person nearby instead of his considerations.

A person who spoke as if nothing was wrong at all.

It was that, more than anything else, that made the chill creep down his spine. That complete nonchalance that was reminiscent of other things, and it was that aspect alone that made the boy try to seek out details in the dark, more than an off-white coat and dark outline. He shouldn't have even bothered. There was nothing to be seen but what the man was choosing to show, and flicking his eyes about in vain did nothing more than make him look like he was possibly seizing.

"Um..." What do you say to something that greets you in this kind of setting? "I'm... okay? Are you--" Going to torture me? There's not much information that he knew. Izaya would have been a better bet. "What is... What is all of this?"