Undercover High School

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.

• Im Young-binWriter
• Choi Jeong-inDirector

• Seo Kang-joonJeong Hae-sung
• Jin Ki-jooOh Su-ah
• Kim Shin-rokSeo Myung-ju
• Kim Min-juLee Ye-na
• Yoon Ga-iPark Mi-jung
• Kim Young-ahIm Chung-ha
• Lee Hyun SoHan Seung-jae
• Yun Chae-binYun Chae-rin
• Kim Sun-minJi Hyeon-jun
• Kim Seung-beomKim Ho-jin