Undercover High School
2025 – 20251 season · 12 episodes8.0/10(66 TMDB votes)
Action & AdventureComedyDrama
Watch trailerPlot
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.
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