Undercover High School

Overview
At Byungmoon, a prestigious private high school in Korea, corruption runs rampant, with social status and academic success taking precedence. Hae-sung, a skilled NIS agent, infiltrates the school to locate Emperor Gojong’s concealed gold and unravel the mystery of his father's disappearance. Initially viewing the institution as merely a hurdle, Hae-sung's icy demeanor softens as he forges connections with students and rekindles a romance. Caught between his mission and the relationships he develops, he must navigate the complexities of loyalty and duty while striving to achieve his objectives.
Episodes
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5

Student Council
Hae Seong and his team become more anxious as Su A's doubts may jeopardize his undercover work. Against the odds, Hae Seong secures a position on the ...
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6

Hye Seong's Father's Notebook
After the school's security guard passes away, Hae Seong discovers a notebook that belonged to his long-missing father. The unexpected find sends him ...
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7

The 24th Anniversary of Byeongmun High School
Hae Seong is taken aback when he hears Su A's childhood nickname, Bong Ja, bringing back memories of his first love and diverting his attention. Even ...
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8

The Plan for VIP Students
As Hae Seong realizes there might be a traitor within the NIS, he grows more suspicious of his colleagues, leading him to doubt the mission's legitima...
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9

The Mathematics Teacher
Title: The Mathematics Teacher Plot: While Su A heals in the hospital after the break-in incident, Hae Seong and his team discover that the perpetrat...
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10

Retribution
In a surprising turn of events, Seo Myeong Ju makes a sudden return to the school. Showing her authority, she expels Hae Seong and swiftly breaks apar...
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11

The Devastating Truth
Just as the gold bars are about to be secured, they mysteriously disappear, leading Seo Myeong Ju to suspect Hae Seong is involved. Meanwhile, in the ...
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12

Where The Stars Lead
Even after suffering serious injuries, Hae Seong successfully contacts Su A and the rest of the team. They determine that the only solid evidence they...