Undercover High School

Genres: Action & Adventure, Comedy, Drama

Counries: South Korea

Companies:

Seasons: 1 (12 episodes)

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.