Watch Undercover High School Online

Byungmoon, Korea’s top private high school, is rife with corruption, where status and success matter most. Hae-sung, a top NIS agent, goes undercover at Byungmoon to find Emperor Gojong’s hidden gold and uncover the truth behind his father’s disappearance. Cold and calculated, he sees the school as an obstacle—until he connects with students and a former crush and becomes a reluctant hero. Torn between duty and newfound bonds, can he still complete his mission? Read More

Watch Undercover High School online. Featuring Seo Kang-joon and Jin Ki-joo, Undercover High School has 1 seasons and 12 episodes in total. It is available for streaming online in the UK It is classified as Action & Adventure and Comedy genre series and the average rating across the web is 7.938. The TV series was filmed in South Korea and was first aired on 2025. Read Less