Storyline

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.

[1차티저] 국정원 요원 서강준, 고등학교에 잠입한다!, MBC 250221 방송

Details

Cast

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

Information