Credit: Public domain.
According to the Democratic Party 민주당 legislator Kim Hoe-jae 김회재, the richest 20% of Koreans in their 20s and 30s have approximately KRW 870b (USD 735.5k) in assets - more than 35x of the bottom 20%, who have KRW 24.7m (USD 20.9k) in assets.
The difference is largely due to early inheritance and the significant rise in housing prices and the stock market.