Undercover High School

Season 1 Episode 9: 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.

Genre:

Action & Adventure, Comedy, Drama

Seasons:

1

Episodes:

12

Cast:

Seo Kang-joon, Jin Ki-joo, Kim Shin-rock

Quality:

HD

Duration:

68 min

First Air:

2025

Rating:

8.0