We were grateful and thankful that we met those elderly Korean locals for inviting and treating us to coffee. They were very thankful as well because we voluntarily took their group pictures when we saw them at Samnangol village.
Although there was a language barrier we were able to use body language and gestures to communicate, haha. Also, one of them called their son to become our translator and tour guide. We met on that day! haha. Being really nice and helpful in simple way makes you meet good people in unexpected places.