In 'Undercover High School,' Seo Kang-joon was falsely accused of being a perpetrator of school violence due to false testimony.

On Feb. 28, the third episode of MBC's Friday-Saturday drama 'Undercover High School' (planned by Namgung Seong-woo, written by Lim Yeong-bin, directed by Choi Jeong-in, produced by Neo Entertainment and Slingshot Studio) depicted Jung Hae-sung (played by Seo Kang-joon) facing the threat of expulsion.

On that day, Jung Hae-sung, who had secretly infiltrated Byeongmun High School's old building, learned the truth behind the ballerina rumor. The bones found on the dance floor were fake. Later, Jung Hae-sung confidently told his team, "The seal on the key matches exactly with the seal of Seo Byeong-moon. The important part to note is that it suggests the beginning of gold bullion."

At that moment, Chairperson Seo Myeong-joo (played by Kim Shin-rok) listened to Principal Park Jae-moon (played by Park Jin-woo) and remarked, "I never imagined this. Wow, it's so interesting. Anyway, that's truly amazing. What a unique person. A school rumor, after all," while smiling meaningfully.

She continued, "For now, let's just wait and see. The ones who know the school best are the students, so perhaps it can be solved in an unexpected way."

The next day, while Jung Hae-sung was digging into the school rumor, he was misunderstood as a perpetrator of school violence by Oh Soo-a. This was because Park Tae-soo (played by Jang Seong-beom) used Jung Hae-sung's name while stealing the ID card of Lee Dong-min's (played by Shin Jun-hyang) grandmother. Jung Hae-sung expressed his frustration, but Oh Soo-a didn't believe him.

Later, Oh Soo-a witnessed Park Tae-soo bullying Lee Dong-min, which helped her clear up the misunderstanding about Jung Hae-sung. Shocked, Oh Soo-a scolded Park Tae-soo, but Park Tae-soo, who had a father serving his third term as a member of the National Assembly, arrogantly replied, "Ugh, this is really annoying. Just pretend you didn't see, teacher. Be like a temporary teacher. Teacher, I'll endure it today since I look pretty. Please don’t do that again next time."

Oh Soo-a asked, "Dong-min, have you been bullied by Tae-soo until now? I got a call from your grandmother. Tae-soo has your grandmother's ID card too," but felt frustrated when Lee Dong-min evaded by saying it was just a prank with Tae-soo.

That evening, Oh Soo-a accidentally ran into Jung Hae-sung and said, "You knew, right? That I couldn't say anything about Tae-soo and Dong-min because I didn't trust them. I'm sorry for misunderstanding about your grandmother's ID card and not realizing things sooner."

Meanwhile, Lee Dong-min's grandmother was arrested on charges of being the mastermind behind an illegal gambling site due to the misuse of her ID card. With the situation escalating, Jung Hae-sung told Oh Soo-a, "It must be related to Park Tae-soo. The ID card of your grandmother. If this continues, your grandmother could be incarcerated. It's a serious crime, and someone has to take action."

More importantly, on that day, while checking the rumor at school, Jung Hae-sung encountered Seo Myeong-joo. Seo Myeong-joo asked, "You seem very interested in rumors. Is it worth breaking school rules to enter the old building?"

When Jung Hae-sung said, "I'm sorry. I'm just very curious," Seo Myeong-joo responded, "You have a lot of curiosity? Wow, that's great. Curiosity is indeed very desirable for humans. But did you know that these days, students lack curiosity?" She added, "Anyway, that's good. If you need help or want to have a consultation, come to the office of the chairperson. I'm on the side of the students," heightening the tension.

Meanwhile, Oh Soo-a anonymously exposed Park Tae-soo’s misdeeds on the school bulletin board for Lee Dong-min's sake. However, it did not have a lasting effect. Lee Dong-min, threatened by Park Tae-soo, falsely testified in front of Seo Myeong-joo, saying, "The post on the bulletin board is fake. Tae-soo didn't hit me. The real person who hit me is Jung Hae-sung."

As a result, Jung Hae-sung was wrongfully accused of being a perpetrator of school violence, leading to the commencement of the School Violence Committee.

Jung Hae-sung, pleading with Oh Soo-a to "buy him some time," appeared at school on a motorcycle with the mastermind behind the illegal gambling site, drawing everyone's attention while facing the threat of expulsion. Upon witnessing this, Oh Soo-a remarked, "Crazy!" and Jung Hae-sung stated at the School Violence Committee, "Shall we get started?"

[Photo] Captured from the broadcast of 'Undercover High School.'

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