Undercover High School
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
Rating: 7.982/10
Watch Episodes
Season 1 • Ep 1
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Cast
Seo Kang-joon
Jin Ki-joo
Kim Shin-rock
Kim Min-ju
Yoon Ga-i
Kim Young-ah
Lee Hyun So
Yun Chae-bin
Kim Sun-min
Kim Seung-beom
