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.
- Seasons
- 1
- Episodes
- 12
- Status
- Ongoing
- Genres
- Drama, Comedy, Action & Adventure
- Year
- 2025
- Country
- South Korea
- Runtime
- 70 min
- Updated
- 03.10.2026 05:15
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