Undercover High School

TV series · 2025 · 1 season · 1h 10m episodes · Ended · Action & Adventure, Comedy, Drama

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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