Seo Kang-joon foreshadows an eventful school life.

In the first episode of MBC‘s Friday-Saturday drama ‘Undercover High School’ (planned by Nam Goong Sung-woo/written by Lim Young-bin/directed by Choi Jeong-in/produced by Neo Entertainment, Slingshot Studio), scheduled to air on the afternoon of the 21st, National Intelligence Service agent Jung Hae-sung (played by Seo Kang-joon) sets out to investigate the prestigious private school Byeongmun High School.

The stills released ahead of the first broadcast show Hae-sung, who has completely transformed into a high school student. Having entered Byeongmun High School as a transfer student, he has a difficult time from the first day. In the midst of all this, the fact that he is dragged around by his homeroom teacher Oh Soo-ah (played by Jin Ki-joo) hints that their first meeting will not be ordinary.



As soon as he enters school, Hae-sung turns on his main job mode and explores his surroundings. While he was doing that, he discovered an old building, sensed something suspicious, and took a picture. He also noticed something peculiar while looking around and suggested to Team Leader Ahn Seok-ho (played by Jeon Bae-soo) to investigate it closely. He became very curious about whether there was something hidden there as Hae-sung said.

But that didn’t last long, and Hae-sung also got involved with problem students. Hae-sung couldn‘t avoid the situation and responded to what they said. How will Hae-sung suppress his instinct to fight and respond, and how will Hae-sung, who has been involved in a series of incidents since his first day at school, resolve this difficult situation? The main broadcast is highly anticipated.

The first episode of ‘Undercover High School’ will air at 9:50 p.m. on the 21st (today).

Choi Yoon-na, Donga.com reporter yyynnn@donga.com

This article is automatically translated using Google AI. If you notice any inaccuracies, please let us know at allkstar@donga.com.