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.
Status · EndedSeasons · 1Episodes · 12
TMDB8.0/10
57 votes
Undercover High School
TV Show
•2025
Overview
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.
Seasons
1
Episodes
12
Status
Ended
Cast
Seo Kang-joon
Jeong Hae-sung
Jin Ki-joo
Oh Su-ah
Kim Shin-rock
Seo Myung-ju
Kim Min-ju
Lee Ye-na
Yoon Ga-i
Park Mi-jung
Kim Young-ah
Im Chung-ha
Lee Hyun So
Han Seung-jae
Yun Chae-bin
Yun Chae-rin
Kim Sun-min
Ji Hyeon-jun
Kim Seung-beom
Kim Ho-jin
Video Gallery
![[1차티저] 국정원 요원 서강준, 고등학교에 잠입한다!, MBC 250221 방송](https://i.ytimg.com/vi/lUxhuwhczn8/hqdefault.jpg)
Teaser
[1차티저] 국정원 요원 서강준, 고등학교에 잠입한다!, MBC 250221 방송
January 23, 2025
