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.
Episodes
Loading episodes…
Top 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
Kang Pil-jun
Son Beom-Sik
FAQ about Undercover High School
What is Undercover High School about?
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.
When was Undercover High School released?
Undercover High School was released in 2025.
What genres does Undercover High School belong to?
Undercover High School is categorised as Action & Adventure, Comedy, Drama.
Who stars in Undercover High School?
The cast of Undercover High School includes Seo Kang-joon, Jin Ki-joo, Kim Shin-rock, Kim Min-ju, Yoon Ga-i.
How many seasons of Undercover High School are there?
Undercover High School has 1 season(s) and 12 episodes.