Korean Foods - 떡만두국 (dumpling soup) & 칼국수 (noodles)

I'm not the type of person who can wait in line in front of a restaurant just because it's famous or its foods are good, so I never do that. I heard that this restaurant we went to usually has people waiting for about 20 minutes at a regular week-day lunch hour, but fortunately, I didn't have to go through that because I went on a Saturday around 4 PM. There were literally two other people :P ...