Prosecutors notify President Yoon of summons for investigation on the 21st (South Korea)

In South Korea, the prosecution investigating the state of emergency notified President Yoon Seok-yeol to appear before the prosecution on the 21st of this month and undergo questioning.
According to the Korean legal community, the prosecution's emergency martial law investigation headquarters sent a letter to the presidential office on the 16th informing him to "submit for an investigation on the 21st."
While the specific schedule is being coordinated with the president's side, it remains to be seen whether President Yoon will actually respond to the second summons. President Yoon's legal team began discussing how they will respond to the prosecution's summons investigation this morning.
The results are expected to be announced on the 17th, with comprehensive discussions on how to respond to the situation. Meanwhile, on the 11th, the prosecution notified President Yoon to "appear for a summons investigation on the 15th."
I knew about it, but it didn’t happen.