He has spoken to quite a few people, but people he actually knows well enough to keep track of where few and far between.

He's not sure how to help, what to say that might stop Yoon Bum from worrying so much, but instead he freezes, turning around in the direction of the drain.

He gestures to Yoon Bum to get behind him, he might be underestimating the kid but he didn't seem like a fighter.