Considering I live in Korea myself for 20+ years, reading this made me realised just how a foreigner might truly take the country I consider home. I mean the whole confusing subway line thing is definitely daunting, even daunting for my younger self when I didn't really ride the subways.
And the taxis. Seoul Yeok, Gwanghwamun... GUH.
I'm just glad you did not mention Itaewon in here!!!