According to Nielsen Korea, the penultimate episode of “Undercover High School” scored an average nationwide rating of 6.0 percent.

MBC’s Friday-Saturday drama Undercover High School delivered a game-changing sixth episode as Jung Hae Sung (Seo Kang Jun) began an unexpected alliance with Oh Su A (Jin Ki Joo) after she ...

“Undercover High School” has unveiled new stills ahead of tonight’s highly anticipated episode! MBC’s “Undercover High School” is a comedy action drama about a National Intelligence ...