Undercover High School

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.

Director: N/A,

Genre: Action, Comedy, Thriller,

Cast: Park Jin-woo, Kim Young-ah, Jeon Bae-soo, Lee Seo-hwan, Jo Bok-rae, Lee Min-ji, Yoon Ga-yi, Park Se-hyun, Shin Joon-hang, Lee Hyun-so, Oh Yong, Seo Kang-joon, Jin Ki-joo, Kim Min-ju, Kim Shin-rock, Seo-young Lee,