Yangyang airport has never been a busy place. It was prepared for flights to China and opened at the peak of SARS.
I arrived early to meet my wife (she and kwandongbaby visited her folks) and found a deserted building. There was a weight training room out of sight of visitors but I guess staff decided there weren't enough visitors to worry about.
Here is Kwandongbaby with his mom's suitcase. I guess he had performed ancestor worship, bowing to his grandfather, before coming home as he was in his suit. Does he look more like a busboy or a VYuppie (Very Young Urban Professional)? Whatever, he thought he was very helpful.