
Kim Moo-yul
Na Hwa-jin
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.





















Na Hwa-jin

Choi Kang-seok

Im Han-rim

Bong Geun-dae

Choi Ga-yun

Hwang Gi-tae

Cho Gyu-cheol

Anchor

Gi-tae's Assistant

Prison Officer Kang (uncredited) (archive footage)

Reporter 3

Reporter 4

Lee Cheol-myeon

Seo Beom-su

Reporter 1
Reporter 2

Kim Hyeong-ju

Cho In-beom

Park Seong-hwan

Jung Seong-yeong
Netflix
Streaming data by JustWatch, through TMDB.
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!
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
this is absulate peak. best kdrama of the year or i'd say best drama of this year. highly recommended watch this masterpiece! 💥
ℛ.12 Jul 2026
8/10 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.
Dean29 Aug 2026
10/10 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!
𝑪𝒓𝒆𝒍𝒊𝒔𝒚𝒂18 Sep 2026
5/10 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 extremel
LM10101 Oct 2026
8/10 Teach You a Lesson was a really enjoyable watch for me. It has a good balance of action, drama, and comedy, with enough serious moments to keep the story engaging without making it feel too heavy.
What I particularly enjoyed was the unconventional premise and the way the characters interact. The show has plenty of fun moments, and some scenes genuinely had me laughing 😂. The cast also works well together, especially when the story shifts between its more dramatic and comedic sides.
It isn't a flawless series, and there are moments where the pacing or story could have been tighter, perhaps i just wanted more of it, but overall it was easy to get invested in and fun to watch.
My vibe: 80% — definitely a show I enjoyed and would recommend to someone looking for a light but entertaining mix of comedy, drama, and action.
- Refined by AI
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6.1 TMDB χ Niguro, Credits to all contributors.
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Created by
Chae Yong-taek·Han Ga-ram
Top cast
Kim Moo-yul·Lee Sung-min·Jin Ki-joo·P.O·Ahn Ha-young·Kim Jong-soo·Lee Bong-joon·Lee Yeo-jin