---
title: "Undercover High School"
year: 2025
canonical_url: "https://www.archytele.com/show/undercover-high-school-2025"
media_type: "tv"
tmdb_id: 248244
imdb_id: "tt33364760"
status: "Ended"
seasons_count: 1
episodes_count: 12
runtime_minutes: 70
community_rating: 8.0
vote_count: 62
content_rating: "Unrated"
---

# Undercover High School (2025) — Television & Cinema Intelligence Dossier

> **Archytele Living Vault Canonical Record**: https://www.archytele.com/show/undercover-high-school-2025

## Executive Summary & Cultural Positioning

Undercover High School is a 2025 South Korean action comedy spy television series. The series stars Seo Kang-joon, Jin Ki-joo, and Kim Shin-rok. Ace NIS agent Jung Hae-seong is demoted after a mission failure and goes undercover at a high school. He is on a mission to locate King Gojong's missing gold. At the high school, he meets his teacher Oh Soo-ah, who sees him as her lost first love, stirring old heartbreak. The series is written by Im Young-bin and directed by Choi Jung-in. It is available to watch on various platforms, including KOCOWA+ and Prime Video. The series premiered on February 21, 2025, and a second episode was released on February 27, 2025. The series has been listed on several online databases, including MyDramaList, IMDb, and The Movie Database.

## The Hook & The Verdict

**The Hook**: "A demoted spy infiltrates a high school to find missing royal treasure while reconnecting with his past."

### Why Watch
- Unique blend of espionage and school drama
- Compelling dual timeline romance
- Intriguing historical treasure hunt

### Caveats & Content Note
- Slow pacing in early episodes
- Some predictable romantic moments
- Tone & Suitability: Suitable for teens and adults who enjoy mild romance and mystery.

**Micro-Themes & Vibe Matrix**: undercover, romantic, mysterious, nostalgic, investigative

## Streaming Availability Matrix

| Region | Stream (Subscription) | Free / Ads | Rent / Buy |
| :--- | :--- | :--- | :--- |
| **United States (US)** | Rakuten Viki, OnDemandKorea, Kocowa Amazon Channel, Kocowa | Rakuten Viki | None |
| **United Kingdom (GB)** | Kocowa | None | None |
| **Canada (CA)** | Rakuten Viki, Kocowa | Rakuten Viki | None |
| **Australia (AU)** | Kocowa | None | None |

## Season Architecture & Lore Primers

### Season 1 (12 Episodes)
## Filler vs. Essential Episode Classifier

- **Total Tracked Episodes**: 12
- **Crucial Mytharc Episodes**: 3 (25%)
- **Character Core Episodes**: 9 (75%)
- **Side Quest / Filler Episodes**: 0 (0%)

## Creative Credits

- **Created by**: Im Young-bin, Choi Jeong-in
- **Networks / Studios**: MBC

## Key Cast Continuity

- **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 Hyun So** as *Han Seung-jae*
- **Yun Chae-bin** as *Yun Chae-rin*
- **Kim Sun-min** as *Ji Hyeon-jun*
- **Kim Seung-beom** as *Kim Ho-jin*

## Canonical Frequently Asked Questions

### Q: Is this based on a true story?
No, it's a fictional drama series.

### Q: What genre is this show?
It's a romantic mystery drama with espionage elements.

### Q: Where can I watch it?
Check your local streaming platforms for availability.

### Q: How many episodes are there?
The series runs for multiple episodes.

### Q: Is it appropriate for children?
It's suitable for teenage audiences and above.

## Grounded Source Citations

- [Undercover High School (2025) - MyDramaList](https://mydramalist.com/765779-undercover-high-school)
- [Undercover High School (TV Series 2025) - IMDb](https://www.imdb.com/title/tt33364760)
- [Undercover High School - Wikipedia](https://en.wikipedia.org/wiki/Undercover_High_School)
- [Undercover High School (TV Series 2025-2025) — The Movie Database (TMDB)](https://www.themoviedb.org/tv/248244)
- [Undercover High School | Watch Korean Series Online - KOCOWA+](https://www.kocowa.com/en_us/season/106244593/undercover-high-school)
- [Undercover High School - Prime Video](https://www.primevideo.com/detail/0T9TLTO6TC8M3KW7B8T4TTLN2O/)

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*Generated by Archytele Open Intelligence Systems. Data verified against TMDB and JustWatch APIs.*