First teaser trailer added for MBC drama series “Undercover High School” starring Seo Kang-Joon and Jin Ki-Joo. Drama series “Undercover High School” follows demoted NIS agent Jung Hae-Seong (Seo Kang-Joon) as he begins an undercover operation at a high school. The teaser trailer begins with an anonymous voice asking “Can you take responsibility for what you said about doing everything?” and around the 5 second mark Seo Kang Joon responds with “What should I do first?” and the anonymous voice responds at the 7 second mark with “From now on, you will be a high school student.”
“Undercover High School” will first air February 21, 2025 in South Korea.
Plot Synopsis by AsianWiki: Jung Hae-Seong (Seo Kang-Joon) is an ace field agent for the National Intelligence Service (NIS). After a big incident occurred during an operation, Jung Hae-Seong receives a demotion. He is placed into an operation to locate the whereabouts of King Gojong’s missing gold bars. For this assignment, he hides his identity and goes undercover as a student at prestigious Byeongmoon High School. There, he meets Teacher Oh Soo-A (Jin Ki-Joo) as his homeroom teacher.
Oh Soo-A is a contract Korean history teacher with an upright personality and she holds strong affection for her students. One day, Jung Hae-Seong is transferred to Byeongmoon High School and she becomes his homeroom teacher. She begins to see her first love, from her childhood days, overlap in Jung Hae-Seong. Her first love caused the biggest wound to her heart.
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