Actor Seo Kang-joon captured viewers' hearts with his visuals and nailed it with his acting.

Seo Kang-joon made each moment memorable while portraying Jeong Hae-sung, who juggled the roles of a National Intelligence Service agent and a high school student, in the MBC Friday-Saturday drama 'Undercover High School,' which aired on the 28th of last month.

As the school violence Commissioner meeting approached, Seo Kang-joon's emotional acting reached its peak. Wrongfully accused as the perpetrator, Jeong Hae-sung noticed that the victim, Lee Dong-min (played by Shin Jun-hang), made a false statement due to the intimidation of the bully, Park Tae-soo (played by Jang Seong-beom).

"It's not your fault, whatever happens," Jeong Hae-sung embraced Lee Dong-min instead of blaming him. The calm and thoughtful comfort of Jeong Hae-sung deeply touched the viewers. In particular, Seo Kang-joon conveyed the complex emotions of Jeong Hae-sung solely through his gaze.

Jeong Hae-sung's assertive actions also thrilled the viewers. When Lee Dong-min's grandmother also fell into trouble, he sought to track down the whereabouts of Park Tae-soo's gang with his colleagues from the National Intelligence Service. Just before the school violence Commissioner meeting ended, Jeong Hae-sung's appearance hinted at a turnaround in the unfavorable situation, raising expectations for future developments.

The atmosphere of viewers who became interested in the drama due to Seo Kang-joon's visuals was captivated by his detailed acting. In fact, 'Undercover High School' ranked first in total viewership on Tving, first in the drama sector on Wavve, and also topped the TV-OTT drama section of the buzz index published by Good Data Corporation. Additionally, it climbed to the top in the grants sector, creating an unusual 'Seo Kang-joon fever' online.

Meanwhile, Seo Kang-joon's MBC 'Undercover High School' airs every Friday and Saturday at 9:50 p.m.

[Photo] 'Undercover High School' broadcast capture

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