10 episodes

Teach You a Lesson - Season 1

First aired Jun 5, 2026Season 1

The National Assembly and the Minister of Education passes the Amendment to the Act on the Protection of Teachers' Rights. With the passage of the law, a new government organization, the Educational Rights Protection Bureau, is formed. Na Hwa-jin belongs to the Educational Rights Protection Bureau. He is sent to a problem school as a supervisor. There, he can educate the students without any restrictions or limitations.

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Community reviews for Teach You a Lesson, shown here with its season details.

MSSR

Jun 11, 2026

9.0

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-king178

Jun 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

ratulislamsagor

Jun 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! 💥

Episodes

Episode 1

8.0

Jun 5, 202652 min97 votes

Inspector 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.

Episode 2

8.1

Jun 5, 202657 min26 votes

With 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.

Episode 3

8.5

Jun 5, 202672 min21 votes

When 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.

Episode 4

8.5

Jun 5, 202668 min19 votes

Choi 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.

Episode 5

8.6

Jun 5, 202666 min21 votes

When 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.

Episode 6

8.8

Jun 5, 202669 min16 votes

Four juvenile delinquents think they're above the law — until the team takes an interest in their extracurricular crimes and gives a harsh reality check.

Episode 7

8.6

Jun 5, 202664 min16 votes

Geun-dae goes undercover to help a father find his gambling addict son. To undermine the bureau politically, Hwang Gi-tae visits a juvenile inmate.

Episode 8

8.4

Jun 5, 202660 min14 votes

After a pre-med student collapses in class, Hwa-jin investigates his obsessive mother, whose access to illicit pills hints at a larger conspiracy.

Episode 9

8.3

Jun 5, 202667 min15 votes

To help a student escape his exploitative friends, Han-rim adopts a new persona to join his circle. Cho Gyu-cheol's return puts the bureau in danger.

Episode 10

8.4

Jun 5, 202661 min16 votes

After public backlash hits the bureau, Hwa-jin and his team go rogue to expose a deadly conspiracy led by a violent student-run gang.