<Korean TV Series NOW> ”Undercover High School” EP1, Seo Kang Joon infiltrates a high school on a mission = Viewership rating 5.6%, Synopsis and spoilers
<Korean TV Series NOW> ”Undercover High School” EP1, Seo Kang Joon infiltrates a high school on a mission = Viewership rating 5.6%, Synopsis and spoilers
※This article contains spoilers. In the first episode of the MBC TV series "Undercover High School" (viewership rating: 5.8%), Seo Kang-Joon (a National Intelligence Service agent)