Yoon was removed from office as president after legislature impeached him earlier this month for deciding to temporarily impose martial law.
Concealed martial law troops wearing rifles, body armor, and night-vision equipment entered the parliament to fight off with staffers who fought against them using fire extinguishers.
The order was in effect for only hours before Yoon and the parliament rejected it.
The shift shocked the country, which has been a politics since the 1980s, and raised concerns among friends, including American trading partners with Asia’s fourth-largest market, including the United States.
A legal court case is pending to decide whether to reinstate Yoon or remove him from office forever. It has 180 days to reach a choice.
The judge held its first preliminary hearing on Friday, at which point Yoon’s lawyers ‘ ask for a delay in proceedings to better plan was denied. The judge said it would move quickly.
The third and final hearing is scheduled for January 3.