Dongwoo, after leaving the restaurant and going to the hotel facing the restaurant, decided to call Minwoo. He dialed his number but he didn't pick up.
He tried calling a few more times but there was still no response. He felt Minwoo was intentionally not answering but then he worried for his brother. What if something had happened and that was why he wasn't answering?
He started thinking of how to approach the receptionist to point out the direction her brother went to and, if possible, the room number.
After all, this was an expensive hotel so confidentiality must be at its max.
After coming up with something, he walked in, headed for the reception desk, and asked the receptionist, who was shocked to see the same face twice.