📺 Series
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2025 · 1 season · 12 ep · Action & Adventure · Comedy · Drama
TMDB 8.0/10 (62 votes)
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.
Created by Choi Jeong-in, Im Young-bin
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Cast & creators
CChoi Jeong-inDirectorCChoi Jeong-inCreatorIIm Young-binCreator
Seo Kang-joonas Jeong Hae-sung
Jin Ki-jooas Oh Su-ah
Kim Shin-rockas Seo Myung-ju
Kim Min-juas Lee Ye-na
Yoon Ga-ias Park Mi-jung
Kim Young-ahas Im Chung-ha
Lee Hyun Soas Han Seung-jae
Yun Chae-binas Yun Chae-rin
Kim Sun-minas Ji Hyeon-jun
Kim Seung-beomas Kim Ho-jin
Kang Pil-junas Son Beom-Sik
Seo Kang-joonas Jeong Hae-sungJin Ki-jooas Oh Su-ahKim Shin-rockas Seo Myung-juKim Min-juas Lee Ye-naYoon Ga-ias Park Mi-jungKim Young-ahas Im Chung-haLee Hyun Soas Han Seung-jaeYun Chae-binas Yun Chae-rinKim Sun-minas Ji Hyeon-junKim Seung-beomas Kim Ho-jinKang Pil-junas Son Beom-Sik