Actor Seo Kang-jun succeeded in 'home flirting' with just nine characters.

Seo Kang-jun appeared as National Intelligence Service agent Jeong Hae-seong, who disguised himself as a high school student to retrieve gold bullion for Emperor Gojong, in the MBC show 'Undercover High School' aired on the 14th.

On that day, Jeong Hae-seong found out that Oh Soo-ah (played by Jin Ki-joo) was his first love from childhood, Oh Bong-ja. Afterwards, Jeong Hae-seong's warm gaze following Oh Soo-ah signaled the start of a romance that was about to ignite.

To solve the ghost stories of Byeongmun High School, Jeong Hae-seong and Oh Soo-ah joined forces. While practicing the piano for the 'Byeongmun Night,' Jeong Hae-seong caused 'pupil earthquakes' every time Oh Soo-ah's fingers brushed against his, bringing laughs. This scene distinctly showed the feelings Jeong Hae-seong had for Oh Soo-ah were growing uncontrollably.

Finally, Jeong Hae-seong delivered a powerful line with "And you, you look beautiful today." His soft yet assured voice left a deep impression on the viewers. This was the first time he expressed his feelings directly, maximizing the flutter of excitement.

In fact, the line caused a stir in various online communities and social media even before it aired, leading to the creation of a meme with 'you look beautiful' following 'good night,' prompting endless loops from viewers.

In this way, Seo Kang-jun proved himself a top student in romance through 'Undercover High School.' He portrayed the awakening of love and the awareness of those feelings with subtle gazes and expressions, enhancing immersion in the drama. Furthermore, his warm visuals and perfect suit fit captivated women's hearts completely.

Meanwhile, Seo Kang-jun, who activated his 'melodramatic gaze,' appears in MBC's 'Undercover High School,' which airs every Friday and Saturday at 9:50 p.m.

[Photo] Captured from MBC 'Undercover High School' broadcast screen

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