Undercover High School Season 1 Episode 9

2025
Feb 21
Mar 29
(1k)
0

A comic action drama about an NIS agent who hid his identity and entered high school disguised as a high school student to find the missing emperor's gold bullion.

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?

Type

series
Premiere Date

Feb 21, 2025
Country
- South Korea
Language
- Korean
Genre
Cast
- Seo Kang-joon as Jeong Hae-sung
- Jin Ki-joo as Oh Su-ah
- Kim Shin-rock as Seo Myung-ju
- Kim Min-ju as Lee Ye-na
- Yoon Ga-i as Park Mi-jung
- Kim Young-ah as Im Chung-ha
- Lee Hyeon-so as Han Seung-jae
References

S01E09 The Mathematics Teacher

As Su A recovers in the hospital following the attack during the break-in, Hae Seong and the team uncover the culprit: Lee Jun Ho, the mathematics teacher. When Hae Seong detects his father's notebook missing, he realizes that Seo Myeong Ju orchestrated the break-in. After Lee Jun Ho's arrest and confession, the revelation of the school's grade-rigging scandal throws the institution into chaos. Amid the turmoil, Hae Seong stumbles upon a crucial clue to the final scary story.

Title

The Mathematics Teacher

Season

Episode

Air Date

Mar 21, 2025