In 'Undercover High School', Seo Kang-joon confirmed a corpse buried in Byeongmunggo.

In the second episode of the MBC weekend drama 'Undercover High School' (planned by Namgoong Seong-woo, written by Lim Young-bin, directed by Choi Jeong-in, produced by Neo Entertainment and Slingshot Studio) aired on the 22nd, Jeong Hae-seong's (played by Seo Kang-joon) activities as an undercover agent were depicted.

Jeong Hae-seong was unable to search the ballet room in the old building because Oh Soo-a (played by Jin Ki-joo) was patrolling, and the excitement of his regular teacher being involved meant he had to be caught despite Jeong Hae-seong's agile movements.

Oh Soo-a expressed regret, saying, "The more I think about it, the more of a waste it is. If I had caught him, it would have been a direct shot at a brave citizen." However, Jeong Hae-seong, appearing in his school uniform, tried to unravel secrets in other ways.

The bullying of Lee Dong-min (played by Shin Hang-jun) by Park Tae-soo continued. Jeong Hae-seong encouraged Lee Dong-min, saying, "Don't you have any pride? As a man, shouldn't you just do what these guys tell you to?" However, Lee Dong-min hesitated and could not speak because, being from a grandparent-headed family, he was essentially what Park Tae-soo referred to as 'food.'

It was so unbearable that Ahn Yoo-jung (played by Park Se-hyun) intervened. Ahn Yoo-jung warned Jeong Hae-seong, saying, "Be careful of Park Tae-soo. It's a pain, and if you get targeted by the student council, I can't help you either," yet she trembled when the moment came for her to step forward. Lee Ye-na (played by Kim Min-joo) also stepped in, but even Lee Ye-na said, "I will speak, so you stay quiet."

Nevertheless, Jeong Hae-seong blocked Park Tae-soo's attack on Lee Dong-min, overcoming his high school trauma. After Park Tae-soo spat on the food, he shouted at Lee Dong-min to eat it, and Jeong Hae-seong clenched his fists in rage.

Oh Soo-a, aware of this, said, "You both got into a fight by grabbing each other's shirt. This cannot be overlooked. If you started it, you should either call the teacher or are you a thug? A punk? How long has it been since you transferred?" However, Jeong Hae-seong responded, "You really don't know anything. Whether you’re pretending not to know or just clueless, teacher, do you have any interest in the class?" and added, "I'll consider Tae-soo's performance as good. If you're just pretending not to know, it would be disappointing," and, "I have nothing more to say. Do as you please, teacher," with biting words.

However, putting aside his conflict with Oh Soo-a, Jeong Hae-seong was confronted with a corpse buried in the basement of the old ballet room while searching for the hidden 800 billion won in gold bullion. Moreover, Lee Dong-min, who had chased after him just recognizing Jeong Hae-seong's physique, was also witnessing the scene.

Shin Myeong-joo (played by Kim Shin-rok), who was watching everything on surveillance cameras, wore a puzzled expression. Jeong Hae-seong reported to the National Intelligence Service, saying, "Team leader, I think the chairman is also looking for the gold bullion." Oh Soo-a expressed her frustrations, saying, "Why did I try to become a teacher? Why should I have to hear such things?" It became clear that her ambition was not due to any ulterior motives but to fulfill her duties as a teacher.

[Photo] MBC weekend drama 'Undercover High School'

[OSEN=Reporter O Se-jin]