K-Drama Diary드라마 일기

K-Drama Diary › Undercover High School

Poster of Undercover High School

Undercover High School

언더커버 하이스쿨

  • Ended
  • 2025
  • 12 episodes
  • 70 min per episode
  • Action & Adventure
  • Comedy
  • Drama
  • MBC

Where to watch Undercover High School in the US

You can stream Undercover High School in the US on Viki, OnDemandKorea, Kocowa Amazon Channel, Kocowa, Viki.

Included with subscription

Availability updated November 3, 2026. All options and prices

Undercover High School plot

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.

Undercover High School cast

If you liked Undercover High School