Undercover High School (2025)

Jung Hae Sung is an ace field agent for the National Intelligence Service (NIS). After a big incident occurred during an operation, Jung Hae Seong receives a demotion. He is placed into an operation to locate the whereabouts of King Gojong’s missing gold bars. For this assignment, he hides his identity and goes undercover as a student at prestigious Byeongmoon High School. There, he meets Teacher Oh Soo Ah as his homeroom teacher.

Soo Ah is a contract Korean history teacher with an upright personality and she holds strong affection for her students. One day, Hae Sung is transferred to Byeongmoon High School and she becomes his homeroom teacher. She begins to see her first love, from her childhood days, overlap in Jung Hae Sung. Her first love caused the biggest wound to her heart.

(Source: AsianWiki)

Tags: Student Supporting Character, Student Male Lead, School Setting, Undercover Agent Male Lead, Teacher Female Lead, National Intelligence Service, Investigation, Friendship, Suspense (Vote or add tags)

Episodes: 12

Country: South Korea

Airs On: Friday, Saturday

Aired: 2025 - ?

Content Rating: Not Yet Rated

Also Known As: 언더커버하이스쿨 Eondeokeobeo Hai Seukul

Director: Choi Jeong In [최정인]

Original Network: MBC;

Country: Korean

Status: Upcoming

Genres: Action; Comedy; Mystery; Thriller;

Aired: Dec 31, 2025