When Jin Ki-ju collapsed, Seo Kang-jun woke up... "Under School" is tracking down the truth

Mar 21, 2025

When Jin Ki-ju collapsed, Seo Kang-jun woke up... 'Under School' is tracking down the truth



Seo Kang-joon pulls out the knife once again for Jin Ki-joo, who was attacked.

In the 9th episode of MBC's Friday-Saturday drama 'Undercover High School' (hereinafter 'Underschool'), Jung Hae-sung (Seo Kang-joon) will start a full-fledged pursuit to reveal the identity of the gunman who attacked Oh Soo-ah (Jin Ki-joo).

At the end of the eighth inning, Sua visited Haesung and visited his house, where she shocked him by falling down while being attacked by an unidentified gunman. Sua's bloody appearance raised anger and tension not only in Hae-sung but also in viewers, and amplified questions about the criminal's identity.




In the ninth inning, Haesung moves in all directions to protect Sua lying in the hospital. After hearing the shocking results of fingerprint identification from Ko Young-hoon (Cho Bok-rae), the fourth team of the National Intelligence Service, he begins to dig into the link between the Sua attack case and the corruption case.

Meanwhile, Seo Myeong-joo (played by Kim Shin-rok) is also paying attention to the Sua case. She secretly contacts a mysterious person and follows the reality of the case, which causes the movement of Haesung, Sua, and Myeongju to become intertwined in earnest.

Amid growing curiosity about how they will break through the crisis amid continuous incidents, dramas are currently on the rise, ranking first in the TV-non-drama integration for four consecutive weeks and second in the TV-OTT integration.




Seo Kang-joon is also proving his keen interest in under school by topping the TV drama cast's top spot for four consecutive weeks.

The 9th episode of Undercover High School will air at 9:50 p.m. on the 21st.






mj.cho@sportschosun.com