Actor Lee Sang Yoon has tested positive for COVID-19.

On January 29 KST, Lee Sang Yoon's agency revealed that he recently received positive test results for COVID-19. Lee Sang Yoon is currently in self-quarantine, and has no noticeable symptoms. On the same day, the theater play 'Last Session', starring Lee Sang Yoon, stated, "Due to our cast member Lee Sang Yoon's positive test result, performances will be cancelled from January 29 through January 31. In order to operate our performances safely, we will put a pause on our shows for the time being, consistently checking the health conditions of the actors and staff members. We will notify the cast members when we will resume our perfromances."

Lee Sang Yoon was previously preparing to stand on stage for his theater performance of 'Last Session' during two different showtimes on this day, but both days were cancelled following his positive test results.