A little bit off topic, but still related. Yeah, Soul is kind of rediciolous, half of the 40 milion population of Korea cramp into one city 20km from the North Korean border. The housing is so expensive here that people don’t marry and don’t start families because they can’t afford it. But still all the work is only here in Seoul so either you live in a super expensive flat or you commute for 4 hours a day (which some people do).

They even tried to create a new capital https://en.wikipedia.org/wiki/Sejong_City but nobody moves there.