"Ah--" Taehyung isn't surprised by the first bow, but the ones following it actually have him a bit mortified, though he tries to hide it. "That's. It's no trouble, really."

He doesn't understand how making sure someone who just got bodychecked alright was trouble, but he gets it. It's polite. He had been ready to make a comment about how seonbae-nim should stop flirting with the girls with the shortest skirts and watch where he's going, but it seems like this kid might take offense. Or startle. He seems jumpy.

When the bows finally stop, Taehyung doesn't exactly smile, but he does raise his eyebrows in genuine curiosity, concern. "What year are you? I'm Kim Taehyung."