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.
Seo Kang-joon
Jeong Hae-sung
Jin Ki-joo
Oh Su-ah
Kim Shin-rock
Seo Myung-ju
Kim Min-ju
Lee Ye-na
Yoon Ga-i
Park Mi-jung
Kim Young-ah
Im Chung-ha
Lee Hyun So
Han Seung-jae
Yun Chae-bin
Yun Chae-rin
Kim Sun-min
Ji Hyeon-jun
Kim Seung-beom
Kim Ho-jin
Kang Pil-jun
Son Beom-Sik
Choi Jeong-in
Director
Im Young-bin
Writer
Apr 19, 2021
Jan 1, 2000
May 6, 2002
Sep 27, 2024
Nov 3, 2024
Dec 23, 2024
May 13, 2026
Jan 11, 2024
Jan 13, 1997
Jun 26, 2026
May 7, 2026
Jul 15, 2009
Jan 26, 2024
Jun 16, 2022
Apr 9, 2021
Sep 21, 2016
MBC
South Korea
한국어/조선말
![[1차티저] 국정원 요원 서강준, 고등학교에 잠입한다!, MBC 250221 방송](https://img.youtube.com/vi/lUxhuwhczn8/maxresdefault.jpg)
