What are South Korea's achievements in the history of Asian football at the World Cup?

What is the best achievement that Korea has recorded in the World Cup? In the 2002 Korea-Japan World Cup, Korea became the only Asian country to reach the semifinals. This remains the best achievement recorded by an Asian country in the World Cup to this day. With Japan recently being eliminated in the round of 32, Korea's record is becoming more prominent in the history of Asian football. For reference, the second-best record is North Korea's quarterfinal appearance in 1966. In this regard, what direction do you think Asian football should take in the future? Or, do you think Korea's achievements can continue in the future? I would like to hear your opinions.