Undercover High School (2025)

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.

• First Air Date: 2025-02-21
• Last Air Date: 2025-03-29
• Total Seasons: 1
• Total Episodes: 12
• Episode Runtime: 70 min.
• Network: MBC
• Director: Choi Jeong-in
• Creator: Im Young-bin, Choi Jeong-in