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Teach You a Lesson

9.4TV-MA

SeriesAction & Adventure, Drama20261 Season

Let us protect you!

An inspector from the Educational Rights Protection Bureau (ERPB) who is authorized by the government to use physical intervention and unconventional methods to discipline delinquent students and reform the educational system.

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Episodes

Season 1
  1. 1Episode 1Jun 5, 2026 · 52m · ★ 8.0Inspector Na Hwa-jin steps into the chaos and takes control of a school plagued by the spoiled son of a powerful politician — to teach him a lesson.
  2. 2Episode 2Jun 5, 2026 · 57m · ★ 8.1With unassuming Bong Geun-dae on his side, Hwa-jin uses his special ops skills to handle a school gang and defend a student who just wants to study.
  3. 3Episode 3Jun 5, 2026 · 72m · ★ 8.5When a teen influencer spreads false claims about her teachers, the team's loose-cannon Inspector Im Han-rim steps in to set the record straight.
  4. 4Episode 4Jun 5, 2026 · 68m · ★ 8.5Choi Gang-seok weathers a political attack on his bureau. Hwa-jin's team visits an elite school to uncover why a student attacked a respected teacher.
  5. 5Episode 5Jun 5, 2026 · 66m · ★ 8.6When an elementary school teacher's spirit wears down under pressure, Hwa-jin steps in to be her substitute — turning the tables to solve the case.
  6. 6Episode 6Jun 5, 2026 · 69m · ★ 8.8Four juvenile delinquents think they're above the law — until the team takes an interest in their extracurricular crimes and gives a harsh reality check.
Teach You a Lesson poster

An inspector from the Educational Rights Protection Bureau (ERPB) who is authorized by the government to use physical intervention and unconventional methods to discipline delinquent students and reform the educational system.

Created by
Chae Yong-taek, Han Ga-ram
Genres
Action & Adventure, Drama, Comedy
Status
Ended
Original title
참교육
First aired
June 5, 2026
Last aired
June 5, 2026
Seasons
1
Episodes
10
Episode length
1h 10m
Language
Korean
Countries
South Korea
Networks
Netflix
Production
GTist, YLAB
  • Kim Moo-yulNa Hwa-jin
  • Lee Sung-minChoi Kang-seok
  • Jin Ki-jooIm Han-rim
  • P.OBong Geun-dae
  • Ahn Ha-young
Choi Ga-yun
  • Kim Jong-sooHwang Gi-tae
  • Lee Bong-joonCho Gyu-cheol
  • Lee Yeo-jinAnchor
  • Baek Ji-hyeGi-tae's Assistant
  • Choi Jae-supPrison Officer Kang (uncredited) (archive footage)
  • Jin Si-wonReporter 3
  • Kim Eun-heeReporter 4
  • Kim Beong-chounLee Cheol-myeon
  • Lee Seo-hanSeo Beom-su
  • Lee Ho-cheolReporter 1
  • SSong Seon-hyoReporter 2
  • Jeon Bong-seokKim Hyeong-ju
  • Ok Jin-ukCho In-beom
  • Yoo Tae-jooPark Seong-hwan
  • Lee Sang-heeJung Seong-yeong

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    • Netflix
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    Availability for your region. Streaming data provided by JustWatch.

    • MSSR★ 9June 11, 2026
      I am completely hooked on Teach You a Lesson. It is rare to find a show that balances a satisfying, high-octane "power fantasy" premise with actual substance. Every episode feels like a fresh, high-stakes investigation that teaches a new lesson. It’s not just about the action—though Kim Mu-yeol’s performance is brilliant—it’s about the underlying message of finding justice in a broken system. Watching corrupt indi…Read more

      I am completely hooked on Teach You a Lesson. It is rare to find a show that balances a satisfying, high-octane "power fantasy" premise with actual substance. Every episode feels like a fresh, high-stakes investigation that teaches a new lesson. It’s not just about the action—though Kim Mu-yeol’s performance is brilliant—it’s about the underlying message of finding justice in a broken system. Watching corrupt individuals finally face the consequences of their actions is incredibly cathartic. The writing is sharp, the pacing is fast, and the emotional stakes keep you invested until the very end. If you’re looking for a K-drama that is as thrill-inducing as it is meaningful, this is well worth your time. Highly recommended!

    • dark-king178June 12, 2026

      The series drops viewers into an alternate South Korea where the classroom has completely devolved. Hamstrung by youth-protection laws and terrified of wealthy, hyper-influential parents, teachers have lost all authority. In this vacuum, vicious student gangs and cyberbullies rule with absolute immunity

    • ratulislamsagorJune 19, 2026

      this is absulate peak. best kdrama of the year or i'd say best drama of this year. highly recommended watch this masterpiece! 💥

    • ℛ.★ 8July 12, 2026
      There's so much I want to say about this drama. But let's keep it short. This drama, which explores bullying in schools, left me with mixed feelings. It is both terrifying and sad to realize that perhaps in some places cases of bullying are becoming more and more common. Although in my own place the bullying cases are not that bad (or so I thought). Like the tip of the iceberg, this bullying seems to be a hidden t…Read more

      There's so much I want to say about this drama. But let's keep it short. This drama, which explores bullying in schools, left me with mixed feelings. It is both terrifying and sad to realize that perhaps in some places cases of bullying are becoming more and more common. Although in my own place the bullying cases are not that bad (or so I thought). Like the tip of the iceberg, this bullying seems to be a hidden threat for a long time. But one thing I've realized is that recent bullying cases are truly horrific. It's as if the psychological impact on the victims isn't a problem. The perpetrators can still live, but the victims? Life feels reluctant. It's a bittersweet, but bullying between students, teacher-on-student violence, student-on-teacher resentment, and even parental accusations against teachers do exist, and will continue to happen if we can't control ourselves. And this drama seems to reveal everything (even though it is packaged in a fictional story). Aside from the bullying things, I personally really enjoyed this drama, especially the interactions between Na Hwajin and Minister Choi. The dry, dad-like comedy was also quite entertaining, making me laugh out loud several times. When it comes to the acting, I think they all deserve a thumbs up. This drama is a chef's kiss, I guess.

    • Dean★ 10August 29, 2026

      I love TV shows like this and no one does it better than Koreans. Great show. It has heart inside, has good soundtracks and good morale story. Definitely 10/10!

    • 𝑪𝒓𝒆𝒍𝒊𝒔𝒚𝒂★ 5September 18, 2026
      ***It's way too theatrical*** \*I had pretty high expectations for this drama, mainly because of the cast, the director, and especially the concept. The idea of the **(ERPB)**, protecting the right to education, and tackling school bullying is something I’m really interested in, so I was genuinely curious to see how this organization would be used in the story.\* *In the end, even though it’s overall decent and…Read more

      ***It's way too theatrical*** \*I had pretty high expectations for this drama, mainly because of the cast, the director, and especially the concept. The idea of the **(ERPB)**, protecting the right to education, and tackling school bullying is something I’m really interested in, so I was genuinely curious to see how this organization would be used in the story.\* *In the end, even though it’s overall decent and the variety of cases is interesting, I still came away a bit disappointed. I felt like the writing was way too simplistic, and I kept having the impression that the drama was missing the opportunity to explore something much deeper and more nuanced. Some cases work better than others, but overall I was expecting something a lot more ambitious.* *That being said, I really liked the case in episode 5. It’s probably one of the strongest episodes so far. It deals in a pretty realistic way with academic burnout and the pressure/excesses of parents who completely cross the line in the name of their child’s success. I found it especially impactful because it felt grounded, and I could genuinely feel the stress and suffocation experienced by the teacher. That’s really when the show works best when it focuses on everyday, realistic issues instead of overly dramatized situations.* *On the other hand, I kept feeling like the narrative often assumes the student is guilty right from the start of each investigation, while the teachers are framed as innocent victims. The story almost always sides with the teachers, even though abuse of power can exist on that side as well. That’s actually why I appreciated episode 4, where that nuance is finally acknowledged (otherwise I honestly would’ve dropped the show).* *Another issue for me is how theatrical the portrayal of students and the school environment is. I was also a bit confused by the sets and especially how the classrooms are depicted.* *I get that there are rebellious or disrespectful students in real life, but the drama takes it to an almost unbelievable level. The “gang” group in uniforms acting aggressively, touching teachers, yelling at them, and basically running the classroom feels way over the top. Sure, a few disruptive students? That’s realistic. But an entire class behaving like that? That’s really hard to buy into.* *More broadly, the way some students talk to adults feels extremely caricatured. We’re supposed to believe that high schoolers would speak like that to literally any authority figure, including military personnel or intimidating adults? They really need to tone down the “delinquent gang” vibe. At several points, it felt more like a parody of troubled teens than actual students.* *I know it’s adapted from a webtoon, but an adaptation still needs some grounding in reality. When you exaggerate behaviour too much just to create conflict, it ends up making certain scenes feel artificial and less impactful.* *The dialogue also doesn’t really work for me at times. We’re often given these so-called “truth bombs” on screen, but they don’t actually feel that deep or impactful they’re just stated outright rather than properly developed. It ends up feeling a bit hollow, like the show is trying to sound profound without really earning it either emotionally or through the storytelling.* *And even the teachers’ reactions sometimes feel unrealistic. In some situations, they could simply suspend the class, involve the administration, or push for proper disciplinary action. I don’t really understand why they just keep enduring such extreme behaviour without more realistic measures being taken. It often feels like the writing forces situations into something almost grotesque just to serve its own narrative, rather than portraying the school environment in a believable way.* *Finally, another thing that bothered me is how every case resolution feels a bit like a “fairy tale world.” Everything always ends with police arrests, plus a press conference every single time, which quickly becomes repetitive and a bit over the top.* *If you’re looking for something more grounded in reality and deep, I’d honestly recommend **Juvenile Justice.*** **☆ My Rating Summary :** - **Script - 4.7** - **Execution - 6.6** - **Acting - 7.1** - **Pacing - 6.5** - **Enjoyment - 4** **°• Overall - 5.8/10 •°** ---

    • Season 12026 · 10 episodes

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