<Korean TV Series NOW> ”Undercover High School” EP9, Kim ShinRock reappears = Viewership rating 6.1%, Synopsis/Spoiler
※This article contains spoilers. In EP9 of the MBC TV series "Undercover High School" (viewership rating: 6.1%), Hye-sung (Seo Kang-Joon) and Soo-ah (Jin