Undercover High School (2025)

Name: Undercover High School
Genre: Action, Comedy, Thriller
Rating: 7.7

Action · Comedy · Thriller

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.

IMDb rating: 7.7 (4,270 votes)
Seasons: 1
Streaming (US): Rakuten Viki · OnDemandKorea · Kocowa Amazon Channel · Kocowa
Language: KO
Type: TV series

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Seasons

Season 1 (2025)

8.03 avg 12 episodes 7.8 → 8.2

Season 1 episodes — IMDb ratings
#	Title	Rating	Votes
1	The Emperor's Lost Gold	7.8	242
2	Spooky Stories	7.9	230
3	Ghost Story Riddles	8.2	217
4	Joining the Student Council	8.5	239
5	Student Council	8.0	176
6	Hae Seong's Father's Notebook	8.0	182
7	The 24th Anniversary of Byeongmun High	7.9	160
8	The Plan for VIP Students	8.1	160
9	The Mathematics Teacher	7.9	145
10	Retribution	7.9	148
11	The Devastating Truth	8.0	134
12	Where The Stars Lead	8.2	138