Undercover High School - Season 1 - Eps 9: The Mathematics Teacher

Name: Eps 9: The Mathematics Teacher
Released: 2025-03-21
Rating: 4.1

2025-03-21 • 67 min • ⭐ 8.1/10

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.

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About Undercover High School

Title: Undercover High School

First Air Date: 2025-02-21

Last Air Date: 2025-03-29

Status: Ended

Rating: 8.1/10 (from 30 votes)

Language: KO

Seasons: 1

Total Episodes: 12

Network: MBC

Genres: Action & Adventure, Comedy, Drama

Production Companies: Unknown

Synopsis

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?