

A comic action drama about an NIS agent who hid his identity and entered high school disguised as a high school student to find the missing emperor's gold bullion.
Byungmoon, Korea’s top private high school, is rife with corruption, where status and success matter most. Hae-sung, a top NIS agent, goes undercover at Byungmoon to find Emperor Gojong’s hidden gold and uncover the truth behind his father’s disappearance. Cold and calculated, he sees the school as an obstacle—until he connects with students and a former crush and becomes a reluctant hero. Torn between duty and newfound bonds, can he still complete his mission?
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Type
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Premiere DateFeb 21, 2025
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Country
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Language
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Genre
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Cast
- Seo Kang-joon as Jeong Hae-sung
- Jin Ki-joo as Oh Su-ah
- Kim Shin-rock as Seo Myung-ju
- Kim Min-ju as Lee Ye-na
- Yoon Ga-i as Park Mi-jung
- Kim Young-ah as Im Chung-ha
- Lee Hyeon-so as Han Seung-jae
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References
S01E05 Student Council
Hae Seong and the team grow increasingly concerned that Su A's suspicions could threaten his undercover mission. However, Hae Seong defies the odds and successfully gains a spot in the student council. With this new role, his focus shifts to unraveling the mystery behind the old clocks. Meanwhile, a shadowy figure emerges, threatening to expose Hae Seong's true identity.
Browse
- S01