Teach You a Lesson
Upcoming South Korean television series
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Teach You a Lesson (Korean: 참교육) is an upcoming South Korean action school drama television series written by Lee Nam-kyu, and Kim Da-hee, Moon Jong-ho, directed by Hong Jong-chan, and starring Kim Mu-yeol, Lee Sung-min, Jin Ki-joo, and Pyo Ji-hoon. Based on the Naver webtoon Get Schooled by Chae Yong-taek and Han Ga-ram, the series follows an official from the Educational Rights Protection Agency (ERPA) who is authorized by the government to use physical intervention and unconventional methods to discipline delinquent students and reform the educational system. It is scheduled for release on Netflix in the second quarter of 2026.
| Teach You a Lesson | |
|---|---|
| Hangul | 참교육 |
| Hanja | 참敎育 |
| Lit. | True Education |
| RR | Chamgyoyuk |
| MR | Ch'amgyoyuk |
| Genre | |
| Based on | Get Schooled by
|
| Written by |
|
| Directed by | Hong Jong-chan |
| Starring | |
| Country of origin | South Korea |
| Original language | Korean |
| Production | |
| Production companies |
|
| Original release | |
| Network | Netflix |
Synopsis
In response to a rise in campus violence and the decline of faculty authority, the South Korean government establishes the Educational Rights Protection Agency (ERPA) under the Teacher Rights Protection Act. The agency is granted the legal authority to use physical force and psychological pressure to discipline students and reform the school system. ERPA supervisor Na Hwa-jin is dispatched to various educational institutions to dismantle hierarchies established by delinquent students and address administrative corruption. Accompanied by investigator Im Han-rim, Hwa-jin utilizes his state-sanctioned immunity to neutralize school gangs and restore order.
Cast and characters
- Kim Mu-yeol as Na Hwa-jin
- A special agent from the Educational Rights Protection Agency (ERPA).
- Lee Sung-min as Choi Gang-seok
- Minister of Education and founder of the Educational Rights Protection Agency.
- Jin Ki-joo as Im Han-rim
- A former special forces officer turned inspector for the Educational Rights Protection Agency.
- Pyo Ji-hoon as Bong Geun-dae
- Assistant director of the Educational Rights Protection Agency, graduated from KAIST.
- Gang-seok daughter and Hwa-jin's fiancée.
Production
Development
In late 2024, it was announced that the Naver webtoon Get Schooled by Chae Yong-taek and Han Ga-ram would be adapted into a drama.[2] In early 2025 , Ylab Plex announced a content supply deal with Netflix ending in August 2026, which industry analysts identified as the production window for the series. Developed under the working title True Lessons, it is produced by Ylab Plex and GTist, directed by Hong Jong-chan, and written by Lee Nam-kyu, Kim Da-hee, and Moon Jong-ho.[3][4][5]
Casting
Kim Nam-gil was reportedly in talks to lead the series in November 2024.[2] Following the reports, Kim Nam-gil's fanbase issued statements opposing his involvement, citing the original webtoon's history of promoting corporal punishment and its controversial depictions of racism and sexism. On November 8, Kim Nam-gil addressed the concerns via his Instagram, clarifying that while the project had been proposed to his agency, he had not yet personally reviewed it or accepted the role. He stated that his current focus was entirely on the filming of The Fiery Priest 2.[6] On the same month, Kim Mu-yeol was confirmed to play the lead role and he cite his trust in director Hong following their collaboration on the 2022 legal drama Juvenile Justice.[7]
Jin Ki-joo, Pyo Ji-hoon, and Lee Sung-min joined the lead cast in January 2025.[8] By March 2025, Netflix confirmed Kim Mu-yeol, Ji, Pyo, and Lee's appearances.[9]
Filming
Principal photography began in the first half of 2025.[7]
