Undercover High School isn’t ranked against other titles yet. A title needs ratings from 3 different sites and 5,000 votes. This one has 1 site and 4,841 votes so far. The ratings below are everything we hold for it.

Undercover High School poster

Where to watch

Checked 13 October 2026.

Streaming data from JustWatch

Undercover High School

2025 · TV Show · 70 min episodes · 1 season
–

MEANRANK

Not enough sites have rated this yet for a grade.

Every rating

IMDb’s figure comes from IMDb’s own data file, which we re-read about once a month.

Compare

Ace NIS agent Jung Hae-seong is demoted after a mission failure. He goes undercover at a high school to locate King Gojong's missing gold, meeting his teacher Oh Soo-ah, who sees him as her lost first love, stirring old heartbreak.

Details

Director
Choi Jeong-in
Released
21 February 2025
Country
South Korea
Language
Korean
Episode length
70 min
Rated
TV-14
Episodes
12 across 1 season

This title elsewhere