Teach You a Lesson, the long-anticipated Netflix adaptation of the controversial Naver webtoon Get Schooled, arrived on the streamer worldwide today, 5 June 2026, with ten episodes built around a fictional government agency that uses force to discipline delinquent students. Director Hong Jong-chan reunites with Juvenile Justice lead Kim Mu-yeol for a series that has spent more than eighteen months in the headlines for reasons both narrative and political.
What Happened
Netflix opened all ten episodes of Teach You a Lesson (Korean title: 참교육 / Chamgyoyuk, literally "True Education") on its global platform at 5 p.m. KST on Thursday, 5 June, after weeks of trailers, character posters and a teaser-led Tudum reveal that lifted the show's social-media buzz past every other Korean original launching this quarter. The series is the latest production under Netflix's expanding South Korean slate — one of thirty-three Korean titles the streamer announced for 2026, and the first action-school drama in that block to hit the lineup.
Kim Mu-yeol stars as Na Hwa-jin, a former Special Forces operator turned field inspector for a newly created Educational Rights Protection Agency, or ERPA. In the show's near-future Korea, runaway campus violence and the collapse of teacher authority have pushed lawmakers to pass a Teacher Rights Protection Act, granting Hwa-jin and his colleagues legal immunity to use physical force and psychological pressure to dismantle bullying rings and corrupt school administrations. Each episode tracks a separate school assignment — middle, high or vocational — and stitches together a serialised arc about the agency itself and the political cost of running it.
Around Kim are three of the most carefully cast names of the year. Lee Sung-min, the Baeksang-winning star of Misaeng and Reborn Rich, plays Minister of Education Choi Gang-seok, the bureaucrat who founded ERPA and now has to defend it in front of cameras, parents and the National Assembly. Jin Ki-joo, last seen toplining Come and Hug Me and From Now On, Showtime!, plays ex-commando turned ERPA inspector Im Han-rim, who is also Choi's daughter and Hwa-jin's fiancée — a triangle the writers use to keep the agency's politics personal. Pyo Ji-hoon, better known to K-pop fans as P.O of Block B, rounds out the unit as KAIST graduate Bong Geun-dae, the team's tech lead and the only character who is genuinely uncomfortable with the use of force.
The credits also feature scriptwriters Lee Nam-kyu, Kim Da-hee and Moon Jong-ho, the trio who turned the brutal source material into a structured ten-episode arc, and production studios Ylab Plex — Naver's premium-content arm — and GTist, which pushed the project through nearly two years of preproduction. Principal photography wrapped in early 2025, and Netflix officially confirmed the title and Q2 2026 release window in its January 2026 Korean content slate. The official Hangul title 참교육 is a charged Korean idiom: literally "true education," but in online slang it means giving someone a hard, deserved lesson.
Why It Matters
For Netflix, the show is a strategic test. Korean originals have been the streamer's most reliable foreign-language engine for three years running, and after the breakout success of titles like The Boroughs and My Royal Nemesis this spring, the company is leaning into stories with very specific Korean policy contexts. Teach You a Lesson is the most explicit of those bets so far — a drama whose entire premise is a critique of how South Korea has tried, and arguably failed, to legislate civility into its classrooms since corporal punishment was banned in 2011.
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That policy backdrop is real. Since the ban, Korean teachers' unions have repeatedly reported a sharp rise in classroom disruptions, verbal abuse and physical assault, and the 2023 suicide of a young Seoul elementary school teacher triggered nationwide rallies demanding stronger legal protections. The actual Teacher Rights Protection Act passed by Korea's parliament in late 2023 is, of course, far less violent than the fictional ERPA: it lets teachers exclude disruptive students from class and gives schools clearer reporting channels for complaints from parents. The drama exaggerates that real law into a thriller premise, but its writers are openly using the show to argue that civil reforms have not gone far enough.
For director Hong Jong-chan, the project is also a personal continuation of 2022's Juvenile Justice, which examined Korea's juvenile court system through the eyes of a hardline judge. Where that show asked whether punishment could rehabilitate teenage offenders, Teach You a Lesson asks whether the state has any business policing classrooms at all — and what kind of person is willing to do that policing. Kim Mu-yeol has said publicly that the chance to work with Hong again was the reason he accepted the role despite the controversy.
Reaction
Early reviews have been polarised but generally engaged. The Korea Times called the series a "reality check for Korea's broken education system," praising the action choreography while noting that the show's tone tips toward a "dystopian thriller" rather than a sober policy drama. Industry trade Dramabeans flagged the careful balance between vigilante satisfaction and moral discomfort, and Soompi's pre-release feature highlighted the chemistry between Kim and Lee as the show's most reliable engine.
The reception inside Korea is more complicated. The Korean Federation of Teachers' Associations and the Korean Teachers and Education Workers' Union both raised concerns during production, arguing that the original webtoon romanticises corporal punishment and could undermine the slow legal progress they have made on teacher protections. In May 2025, a group of teachers' organisations issued a joint statement calling for the live-action adaptation to be cancelled outright. Director Hong responded at a press event ahead of the premiere by acknowledging "many concerns raised about the original work" and saying his team had tried to "approach the story through a more refined lens and create something meaningful," language he repeated in the show's official Netflix Newsroom announcement.
Fans of the source webtoon, which finished its run on Naver in 2022, have been more enthusiastic, with the show's official teaser racking up millions of YouTube views in its first 48 hours and the #참교육 hashtag trending on Korean X throughout the launch week. Block B's fan base has also rallied around Pyo Ji-hoon's casting, treating it as a serious next step in his post-idol acting career after recent roles in Encounter and Good Partner.
What's Next
With all ten episodes live, Netflix is now in the weeklong window where the show needs to land in its global Top 10 to lock in renewal momentum. Industry trackers are watching three specific markets — Japan, Indonesia and Taiwan — where webtoon-based K-dramas have historically over-performed the rest of Asia. A strong opening would put Teach You a Lesson on the shortlist for the streamer's late-2026 Korean awards push and likely trigger early conversations about a second season, even though the source webtoon has more than enough material for one.
Beyond the streaming numbers, the show is also expected to revive a stalled policy debate. Several Korean lawmakers have already said they will watch the series and use the discussion around it to push for expanded protections for school staff, while education ministry officials have privately warned that a popular drama framed around state-sanctioned violence could complicate community engagement on real classroom reform. Expect editorial pages in The Korea Herald, The Korea Times and Korea JoongAng Daily to keep returning to the show through the summer.
For the cast, attention will shift quickly. Kim Mu-yeol is already filming his next project, Lee Sung-min has two films in post-production, and Jin Ki-joo is attached to a pair of upcoming romance dramas. Pyo Ji-hoon, the youngest of the four, is likely to see the biggest career bump if the show holds: the role is his first real ensemble lead, and several casting directors will be watching to see whether he can carry tonal range outside variety television.
Closing Thoughts
Teach You a Lesson arrives at an unusual moment for K-drama. Netflix's Korean slate is bigger than ever, but the breakout hits of the past two years — The Boroughs, My Royal Nemesis, even Lovely Runner — have tended toward warmer, more emotionally accessible material. Hong Jong-chan's new show is a deliberate counterprogramming bet: a hard-edged action drama that is also a moral provocation, designed to be argued about as much as binged.
Whether that bet pays off will say something about where Korean television is heading next. If the show finds an audience without setting off the kind of policy backlash its critics fear, it will encourage more studios to take genre risks rooted in actual Korean institutional problems — courts, hospitals, ministries, schools. If it stumbles, Netflix will likely retreat to safer adaptations of romance webtoons and historical revenge stories. Either way, the conversation that Teach You a Lesson kicks off this week is the kind of conversation that K-drama, at its best, has been very good at starting.
The most interesting tension is the one the show cannot fully resolve. Its fictional answer to school violence — an armed agency with state immunity — is plainly a fantasy. But the questions underneath that fantasy are real, and Korean parents, teachers and students have been asking them, more loudly each year, for a decade. Teach You a Lesson does not pretend to have the answer. It does, however, want you to keep asking.
한글 요약
넷플릭스가 한국 시각 6월 5일 오후 5시, 10부작 한국 드라마 참교육(Teach You a Lesson)을 글로벌 공개했습니다. 김무열·이성민·진기주·표지훈(P.O) 주연, 홍종찬 감독, 채용택·한가람 작가의 네이버 동명 웹툰이 원작입니다. 학교 폭력과 교권 붕괴에 대응해 정부가 신설한 가상의 교권보호청(ERPA) 요원들이 물리력을 동원해 일선 학교를 '바로잡는다'는 설정으로, 김무열이 특수부대 출신 현장 요원 나화진을, 이성민이 교육부장관 최강석을, 진기주가 ERPA 조사관 임한림을, P.O가 KAIST 출신 부청장 봉근대를 맡았습니다.
원작 웹툰은 2020년 연재 당시 체벌·인종차별·성차별 묘사로 큰 논란을 빚었고, 한국교원단체총연합회와 전국교직원노동조합 등 교원 단체는 드라마화 발표 직후 제작 중단을 요구하는 공동성명을 내기도 했습니다. 홍종찬 감독은 시사회에서 "원작에 대한 우려를 충분히 인지하고 있다"며 "더 정제된 시선으로 의미 있는 이야기를 만들고자 했다"고 답했습니다. 코리아타임스는 첫 리뷰에서 작품이 "한국 교육 현실에 대한 통렬한 진단"이라고 평가했고, 드라마빈스 등 K-드라마 전문 매체들은 김무열-이성민 듀오의 연기 합과 액션 연출에 후한 점수를 줬습니다.
관건은 글로벌 시청자의 반응입니다. 넷플릭스가 올해 발표한 33편의 한국 콘텐츠 가운데 정책적 메시지가 가장 뚜렷한 작품인 만큼, 일본·인도네시아·대만 등 K-콘텐츠 흥행 시장에서의 초반 성적과 글로벌 TOP 10 진입 여부가 시즌2 논의의 분기점이 될 전망입니다. 동시에 한국 내에서는 실제 교권보호 입법 논의에 다시 불을 붙일 가능성이 큽니다. 픽션의 답("국가 공인 체벌")은 비현실적이지만, 그 밑에 깔린 질문 — 교실의 안전을 어떻게 지킬 것인가 — 은 매우 현실적이라는 점이 이 작품의 핵심입니다.