Overview: “Undercover High School” Kdrama is a MBC original drama series that released on 21 February, 2025, and starring Seo Kang Joon, Jin Ki Joo and Kim Shin Rok. It will tell the story of Jung Hae Seong, a skilled NIS agent who goes undercover as a high school student.
| Genre | Comedy, Romance, Action, Thriller |
| Episodes | 12 |
| Watch Online* | Viki, Wavve, Kocowa, TVING |
| Director | Choi Jung In |
| Scriptwriter | Im Young Bin |
| Air Time & Schedule | Friday and Saturday at 09:50 PM (KST) |
Table of Contents
Synopsis
“Undercover High School” Korean drama tells the story of Jung Hae Seong, a skilled agent for the National Intelligence Service. After a failed mission, he gets demoted and is given a new assignment—going undercover as a high school student to find King Gojong’s missing gold bars. Now, he must act like a teenager while secretly carrying out his mission at Byeongmoon High School.
There he meets his homeroom teacher, O Su A, a Korean history who cares deeply for her students. When she looks at Hae Seong, he reminds her of her first love—the one who hurt her the most. As Hae Seong searches for the lost gold, their lives become unexpectedly connected.
Main Cast & Characters
- Seo Kang Joon as Jung Hae Seong
- Jin Ki Joo as O Su A
- Kim Shin Rok as Seo Myeong Ju
Still Cuts
Notes & Facts
- Seo Kang Joon earlier starred in Korean drama “Grid” (2022).
- Jin Ki Joo earlier starred in Korean drama “Uncle Samsik” (2024).
- Kim Shin Rok earlier starred in Korean drama “Hellbound Season 2” (2024).
- This is the first drama of Seo Kang after his military discharge.
- Previous drama on this time slot of MBC is “Motel California.”
Trailers & Clips
This is the teaser of “Undercover High School” that gives you a glimpse of NIS agent Jung Hae Seong’s life as an agent.
Episodes 1, 2, 3,….., Highlights
This is the highlight video of “Undercover High School” that shows the life of an NIS agent who goes undercover as a school student for a mission.
*Drama is subject to regional availability.