If you think it is worth it to invest in Korea, probably the best way to do it for retail investors is through an ETF (fund traded real time that buys a share of the full market at once). We have selected 2:
-EWY, the biggest and most liquid one. Expense ratio: 0.62%. Main sectors: 41% technology, 13% financial services.
-FKO, with an algorithm to choose the stocks. Expense ratio: 0.8%. Main sectors: 18% consumer cyclicals, 18% technology, 15% industrials.