Undercover High School
TV SERIES Ended

Undercover High School

★ 8.0/10 TMDB Premiered 2025-02-21 1 season 12 eps

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.

Last Episode Aired 2025-03-29
S1E12 — Where The Stars Lead

Despite getting badly injured, Hae Seong manages to call Su A and his team. They conclude that the only evidence they can secure is the flash drive that contains the voice recording of Principal Park murdering Director Kim Hyung Bae. After finding out that an arrest warrant had been issued for her, Seo Myeong Ju decides to take a special measure to end everything.

Where to Watch
Stream Rakuten Viki OnDemandKorea Kocowa Amazon Channel Kocowa
Availability data provided by JustWatch via TMDB
💬 Discuss
Rate
Sign in
Billed Cast
Seo Kang-joon
Seo Kang-joon
Jeong Hae-sung
Jin Ki-joo
Jin Ki-joo
Oh Su-ah
Kim Shin-rock
Kim Shin-rock
Seo Myung-ju
Kim Min-ju
Kim Min-ju
Lee Ye-na
Yoon Ga-i
Yoon Ga-i
Park Mi-jung
Kim Young-ah
Kim Young-ah
Im Chung-ha
Lee Hyun So
Lee Hyun So
Han Seung-jae
Yun Chae-bin
Yun Chae-bin
Yun Chae-rin
Kim Sun-min
Kim Sun-min
Ji Hyeon-jun
Kim Seung-beom
Kim Seung-beom
Kim Ho-jin
Kang Pil-jun
Kang Pil-jun
Son Beom-Sik
Check-In Log

Episode Watch Tracker

Check off episodes as you watch (saved in browser — sign in anytime to sync).

Series Progress: 0 / 12 episodes watched 0%
Loading season episodes...
Spoiler-Safe Screening Room

Episode & Series Discussions 0

Dedicated threads unlock on each episode's premiere day. Inline [spoiler] tags stay blurred until clicked.

🌐 Viewing: General Series Discussion Loading...
Join the Screening Room

Sign in to post episode reactions, fan theories, and upvote community dispatches.

Sort:
Filter:
Loading discussion thread...
Audience Ledger

Community Micro-Reviews

Concise 1-sentence dispatches from DidItDrop members.

Sign In to Write a Review
No micro-reviews yet — rate 1–4★ above and log the first 1-sentence take.
Double Feature

More Like This

Recommended titles paired with Undercover High School.