Seo Kang-joon panics after playing the piano… What happened? (Undercover)

TV Mar 13, 2025

Translation

Seo Kang-joon and Jin Ki-joo foreshadow a full-scale collaboration.

In episode 7 of MBC‘s Friday-Saturday drama ‘Undercover High School’ (planned by Nam Goong Seong-woo/written by Lim Young-bin/directed by Choi Jeong-in/produced by Neo Entertainment, Slingshot Studio/hereafter ‘Underschool’), Jung Hae-sung (played by Seo Kang-joon) and Oh Soo-ah (played by Jin Ki-joo) attempt to infiltrate the chairman’s office.

In episode 6, we learned that a grand piano from the 1950s, related to the third ghost story, the piano that cries alone, is in the chairman‘s office. Hae-sung and Soo-ah decide to attempt infiltration using the school event, ‘Night of the Sick’, raising curiosity about the future developments.

In episode 7, Hae-sung and Soo-ah begin to search for the grand piano in earnest. The two, who attended the ‘Byeongmunin Night’, an event attended by people from the political, legal, and alumni circles, draw attention with their black suits and dresses. They attempt to enter the chairman’s office with the help of the National Intelligence Service‘s domestic team 4. They begin the operation amid tension, but an unexpected variable occurs. After many twists and turns, Haesung and Suah succeed in playing the piano, but they cannot hide their bewilderment at the unexpected development.



Not only that, but something shocking happens to Haesung. He freezes on the spot after witnessing something. Indeed, the events that took place in the chairman’s office are making us even more curious about what kind of ramifications they will bring in the future, and the story‘s repeated twists and turns are said to add to the tension.

Meanwhile, according to FUNdex, the official platform of Good Data Corporation, a K-content competitiveness expert organization, ‘Undercover High School’ ranked first in TV integrated topicality combining dramas and non-dramas for the first week of March, drawing attention by staying in first place for three consecutive weeks. It also ranked second in TV-OTT integrated topicality, and Seo Kang-joon is also gaining popularity by taking first place in TV-drama actor topicality for three consecutive weeks.

‘Undercover High School’ airs every Friday and Saturday at 9:50 p.m.

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

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