Undercover High School (2025)

8.0 (67 votes) Feb 21, 2025 1h 10m Ended 1 Seasons12 Episodes

Action & AdventureComedyDrama

Ace NIS agent Jung Hae-seong is demoted after a mission failure. He goes undercover at a high school to locate King Gojong's missing gold, meeting his teacher Oh Soo-ah, who sees him as her lost first love, stirring old heartbreak.