Teach You a Lesson
From DramaWiki
WARNING: Due to violence and mature content, this drama may not be suitable for some younger viewers. 
Contents
Details
- Title: 참교육 / Chamgyoyuk
- Also known as: True Education
- Genre: Drama, school, action
- Format: Webdrama
- Episodes: 10
- Broadcast network: Netflix
- Broadcast period: 2026-Jun-05
- Air time: Friday
- Original soundtrack: Teach You a Lesson OST
Synopsis
When respect collapses in schools, unconventional inspectors arrive to set things right — with sharp, non-nonsense lessons you won't find in textbooks. --- Netflix
User/Viewer Ratings
Cast
- Main Cast
- Kim Moo Yul as Na Hwa Jin (former Special Forces captain, inspector for the Educational Rights Protection Bureau (ERPB))
- Jin Ki Joo as Im Han Rim (former Special Forces sergeant, inspector for the ERPB)
- Pyo Ji Hoon as Bong Keun Dae (officer of the ERPB, KAIST graduate)
- Lee Sung Min as Choi Kang Suk (Minister of Education, founder of the ERPB)
- Daehan High School (ep 1)
- Lee Seung Kyu as Ryu Joon Hyung
- Kim Do Kun as Kim Kwang Soo
- Lee Chan Yong as Kim Kyung Min
- Jung Soo Hyun as Park Dae Suk
- Song Young Kyu as Ryu Kwang Pil (Ryu Joon Hyung's father)
- Kang Joon (강준) as Kim Hak Jae
- Kim Eun Suk (김은석) as Principal Kim
- Jun Kwang Jin as teacher
- Park Wan Kyu (박완규) as Park Dae Suk's father
- Guun High-Tech High School (ep 2)
- Jun Bong Suk as Kim Hyung Joo (ep 2, 4)
- Lee Tae Hwan as Jang Kwon Hyuk
- Yoo Tae Joo as Park Sung Hwan (ep 2, 4)
- Ok Jin Wook as Jo In Bum (ep 2, 4)
- Kim Chan Hyung (김찬형) as gangster
- Sung Noh Jin as principal
- Yoon Woon Young (윤운영) as teacher
- Byun Yoon Jung (변윤정) as Hyung Joo's mother
- Soan Girls' High School (ep 3)
- Lee Sang Hee as Jung Sun Young
- Kwon Hyuk as Ko Young Soo
- Park Seo Yoon as Han Ye Ri (ep 3-4)
- Kim Se Yun as Jung So Young
- Yang Ah Reum (양아름) as Park Soo Jin
- Kim So Wan (김소완) as Lee Da Jin
- Park Yong as principal
- Chukmyeong Foreign Language High School
- Bae Joon Hyung as Park Hyun Woong (ep 4)
- Choi Duk Moon as Chan Sang Yul (ep 4)
- Shim Soo Bin as Jung Soo Jung (ep 4)
- Kim Sun Hwa as Kim Young Ran (ep 4)
- Lee Dong Ho (이동호) as Noavis instructor (ep 4)
- Hyeongchung Elementary School
- Song Shi Ahn as Choi Ji Sun (ep 5)
- Park Ji Yun as Lee Ji Young (ep 5)
- Choi Ja Woon as Kim Woo Jin (ep 5)
- Kwon Dong Ho as Kim Suk Hyun (ep 5)
- Hyeonjin Middle School
- Jang Yo Hoon as Min Ji Woong (ep 6-7)
- Im Hyun Mook (임현묵) as Yun Min Soo (ep 6-7)
- Yoon Tae Shik (윤태식) as Lee Doo Hyun (ep 6-7)
- Choi Hyun Joon (최현준) as Choi Woo Sung (ep 6-7)
- Kim Chae Eun (김채은) as Oh Yoon Jin (ep 6)
- Nakwon High School
- Bae Jae Young as Lee Jae Yoon (ep 7)
- Jo Eun Sol (조은솔) as Shin Ji Soo (ep 7)
- Jo Joon Ho as Ji Sung Bin (ep 7)
- Jo Hyun Woo (조현우) as Jae Yoon's father (ep 7)
- Seungyeon High School
- Kim Tae Young as Jung Hyun Min (ep 8)
- Seo Young Hee as Jung Hyun Min's mom (ep 8)
- Lee Suk Joon as Jung Hyun Min's dad (ep 8)
- Jang Eun Ah as Cho Da Hee's mom (ep 8)
- Jo Yun Jin as Young Joon's mom (ep 8)
- Jinwon High School
- Lee Woo Je as Jang Sung Koo (ep 9-10)
- Kim Jae Sun as Lee Chi Ho (ep 9-10)
- Shin Dong Joon (신동준) as Lee Jong Soo (ep 9)
- Lee Seung Noh as Jung Hyun Tae (ep 9)
- Kim Da Hwin as Lawyer Yoon (ep 9)
- Others
- Kim Jong Soo as Hwang Ki Tae (presidential contender who opposes the ERPB)
- Kim Byung Choon as Lee Chul Myun (a veteran opposition lawmaker from the Daehan Mirae Party)
- Lee Bong Joon as Jo Kyu Chul
- Kim Kyoon Ha (김균하) as Kim Soo Kyum
- Choi Jae Sup as Prison Officer Kang
- Jun Seung Hoon (전승훈) as Seo Tae Hoon
- Special guest appearances
- Ha Young as Choi Ka Yoon (Kang Suk's daughter and Hwa Jin's fiancée)
Production Credits
- Production Companies: Ylab Plex (와이랩 플렉스), GTist (지티스트)
- Director: Hong Jong Chan
- Original writing: Chae Yong Taek (채용택)
- Screenwriter: Lee Nam Gyu
Notes
- Based on the 2020 webcomic True Education (참교육), written by Chae Yong Taek (채용택) and illustrated by Han Ka Ram (한가람).
- Filming began the first half of 2025.