Undercover High School (2025): Cast, Story & Where to Watch in Persian

Where can I watch Undercover High School in Persian?

Undercover High School streams on Ktime, the Persian streaming service built for the Iranian diaspora. It is available with Persian subtitles. You can watch it in any browser at ktime.app/app, on the native Android TV, Google TV and Fire TV app, on the Android phone app, in any IPTV player using your Xtream login, and on a Samsung or LG smart TV through Media Station X. No VPN is needed anywhere, including from inside Iran, and there is no geo-block to work around. Viewers inside Iran pay in USDT through the Telegram desk at t.me/KtimeSaleBot?start=film_page, and the /fa/iran page walks through every step. A paid plan covers one device at a time — a single stream — and you can switch between your TV, phone and laptop as often as you like at no extra cost. You can cancel at any time. It is a 2025 action series from South Korea. The series is served from Ktime's own library rather than linked out to another service. Availability checked as of September 2026.

Not ready to subscribe? Get new-arrival alerts

A short email when new titles arrive on Ktime. No account needed.

Undercover High School is a 2025 South Korean action-comedy thriller series directed by Choi Jeong-in, starring Seo Kang-joon as an elite intelligence agent forced to go undercover inside a high school. Blending spy intrigue with romantic comedy and teen drama, it delivers sharp humour alongside genuine suspense.

What is Undercover High School about?

Jung Hae-seong is one of the National Intelligence Service's most capable field operatives — quick-thinking, highly trained, and accustomed to high-stakes assignments. A botched mission strips him of his rank and lands him in the most unlikely of cover identities: a student at an ordinary secondary school. His real objective is to track down a cache of gold connected to the historical King Gojong. Inside the school, however, complications multiply fast. A teacher named Oh Soo-ah crosses his path and becomes convinced he is the first love she lost years ago. As Hae-seong tries to keep his mission on track without blowing his cover, old emotions stir on both sides, and the line between performance and feeling starts to blur.

About the cast

Seo Kang-joon leads as the straight-faced spy navigating adolescent chaos, bringing physical comedy and dramatic weight in equal measure. Jin Ki-joo plays Oh Soo-ah with warmth and a bittersweet edge that grounds the romantic subplot. Kim Shin-rock, Kim Min-ju, Yoon Ga-i, Kim Young-ah, and Lee Hyeon-so round out a lively ensemble that gives the school setting genuine texture.

Context & significance

Korean drama has built a passionate viewership across the Iranian diaspora over the past decade — series blending action, romance, and humour travel particularly well. Undercover High School sits squarely in the beloved K-drama tradition of placing a fish-out-of-water hero in an everyday setting where both comedy and real stakes coexist. Its spy-versus-school-life premise draws on the same energy that made shows about unlikely infiltrators so rewatchable. For Persian-speaking viewers the series is available with a full Persian dub, meaning you can follow every twist and one-liner without missing a beat. The 70-minute episode format makes it easy to watch in one sitting or split across an evening.

Watching Undercover High School on Ktime

Undercover High School is available on K-Time with a full Persian dub and Persian subtitles. Watch on the web, on your TV, or on your phone — no VPN needed, no geo-blocking, no extra download required. Subscribe and cancel anytime.

Cast & crew

Undercover High School is a 2025 action series from South Korea. It was directed by Choi Jeong-in. The cast is led by Seo Kang-joon, Jin Ki-joo, Kim Shin-rock. Episodes run about 69 minutes. These credits come from this title's own record in the Ktime catalogue, refreshed with every six-hour catalogue sync.

Director

Choi Jeong-in

Cast

Seo Kang-joon, Jin Ki-joo, Kim Shin-rock, Kim Min-ju, Yoon Ga-i, Kim Young-ah, Lee Hyeon-so

Country

South Korea

Year

2025

Runtime

69 min

Genre

Action, Comedy, Thriller

Frequently asked questions

Undercover High School serial Koreyi hast?

Yes. It is a 2025 South Korean series directed by Choi Jeong-in, combining spy action with romantic comedy and a high school setting. Each episode runs approximately 70 minutes.

Aya in serial ba duble Farsi dare?

Yes — Undercover High School is available on K-Time with a full Persian dub as well as Persian subtitles, so you can choose whichever viewing experience you prefer.

Koja mitonam Undercover High School ro online tamasha konam?

You can stream it on K-Time at ktime.app. It works on the web browser, on your TV, and on your phone. No VPN is required and there is no geo-blocking for diaspora viewers.

Chera K-drama haye action-comedy mese in inja ziad hastan?

K-Time curates Korean drama titles that resonate with Persian-speaking audiences. Action-comedy series like this one are among the most-watched because they mix suspense and humour in a format that suits binge-watching.

What year was Undercover High School made?

Undercover High School was released in 2025 and is available to stream in Persian on Ktime.