Series

Undercover High School

★ 8.0(57)20251h 10m1 season

Undercover High School isn't available to stream, rent or buy in Japan right now. Availability changes often, so check back soon. Availability checked 10 June 2026.

Where to watch Undercover High School

🇯🇵 Japan

No streaming, rental or purchase options are listed in Japan right now. Availability changes often — try switching your region in the header.

Streaming in other regions

🇦🇹 AT🇦🇺 AU🇧🇧 BB🇧🇪 BE🇧🇭 BH🇧🇲 BM🇧🇷 BR🇧🇸 BS🇨🇦 CA🇨🇭 CH🇩🇪 DE🇩🇰 DK🇩🇴 DO🇩🇿 DZ🇪🇬 EG🇪🇸 ES

Good to know

Creator: Im Young-bin, Choi Jeong-in
Release date: 2025-02-21
Runtime: 1h 10m
Language: Korean
Seasons: 1
Episodes: 12
Network: MBC
Status: Ended
Country: South Korea

Undercover High School — trailer

About Undercover High School

Undercover High School is a 2025 web series in the Action & Adventure, Comedy and Drama genres, created by Im Young-bin and Choi Jeong-in, starring Seo Kang-joon, Jin Ki-joo and Kim Shin-rock. It spans 1 season and 12 episodes, and originally aired on MBC. It holds an average rating of 8.0/10 from 57 viewers. Below you can see where to watch Undercover High School in Japan — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.

Synopsis

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.

Seasons (1)

Season 112 eps · 2025

Cast

Seo Kang-joon

Jeong Hae-sung

Jin Ki-joo

Oh Su-ah

Kim Shin-rock

Seo Myung-ju

Kim Min-ju

Lee Ye-na

Yoon Ga-i

Park Mi-jung

Kim Young-ah

Im Chung-ha

Lee Hyun So

Han Seung-jae

Yun Chae-bin

Yun Chae-rin

Kim Sun-min

Ji Hyeon-jun

Kim Seung-beom

Kim Ho-jin

Kang Pil-jun

Son Beom-Sik

Themes & keywords

undercover agentromcomromanceagentcomforting

Frequently asked questions

Where can I watch Undercover High School in Japan?+

Undercover High School is not currently listed on any streaming, rental or purchase service in Japan. Availability changes often, so check back or switch your region.

Is Undercover High School on Netflix?+

Undercover High School is not on Netflix in Japan right now.

How many seasons of Undercover High School are there?+

Undercover High School has 1 season and 12 episodes in total.

Who stars in Undercover High School?+

Undercover High School stars Seo Kang-joon, Jin Ki-joo, Kim Shin-rock, Kim Min-ju and Yoon Ga-i.

When did Undercover High School come out?+

Undercover High School is a 2025 web series created by Im Young-bin and Choi Jeong-in.

What genre is Undercover High School?+

Undercover High School is Action & Adventure, Comedy and Drama series.

Who created Undercover High School?+

Undercover High School was created by Im Young-bin and Choi Jeong-in.