Korea had always been a magical country. Perhaps because of its awkward geographical location, it has been dependent on China since ancient times.
In the past few hundred years of history, it was almost always a subsidiary country of China. It was only in recent times that it broke away from the control of China and went into the arms of America because it had global hegemony.
However, due to various historical issues, in the New Era, even though its economy had become more developed, and it had long entered the ranks of developed countries, like Japan, it did not have complete sovereignty.
Till date, it was the corporations or America behind the corporations that controlled the entire country.
With the presence of America, it was not a problem to call it an alternative colony of the new era.