Where to Watch
Region
OnDemandKorea
Stream included
HD
Included
Kocowa
Stream included
HD
Included
Rakuten Viki
Stream with ads
Included
Rakuten Viki
Stream included
HD
Included
Kocowa Amazon Channel
Stream included
HD
Included
Prices last updated September 20, 2026. Pricing and availability may vary by region.
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Seasons
All seasons
About
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 Aired
Feb 21, 2025
Last Aired
Mar 29, 2025
Seasons
1
Episodes
12
Network
MBC
Original Title
언더커버 하이스쿨
Original Language
Korean
Keywords
