Teach You a Lesson K-Drama About Fighting Bullying Trailer and Release Date - Netflix Tudum

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    Bullies Beware: A New Action K-Drama Is Ready to Teach You a Lesson

    Kim Moo-yul and Lee Sung-min make the principal's office look like paradise.

    By Natalie Morin
    June 10, 2026

The action-packed new K-drama Teach You a Lesson feels in many ways like a classic superhero tale: the villains — in this case, school bullies — are wreaking havoc among their victims, students and teachers alike. But there’s no need to call in fantastical beings; the powerful force ready to defeat these villains is the Educational Rights Protection Bureau, a fictional government agency created to protect victims and restore order in various schools whenever students, teachers, or parents cross the line.

These highly-trained officials are using, let’s say, unconventional tactics to stamp out bullying for good. In short? They’re not afraid to fight back. Seriously.

The series is directed by Hong (Juvenile Justice, Her Private Life) and written by Lee Nam-kyu (Daily Dose of Sunshine).

Below, find everything to know about Teach You a Lesson.

What is the Teach You a Lesson release date?

The K-drama was released on June 5, and is now streaming on Netflix.

Where can I watch the trailer?

Check out the ERPB in action in the trailer at the top of the page.

Who’s in the Teach You a Lesson cast?

Meet the Bureau’s fearsome team: Na Hwa-jin (Kim Moo-yul) and Choi Gang-seok (Lee Sung-min) — with both actors reuniting with director Hong Jong-chan after their work on Juvenile Justice — along with Im Han-rim (Jin Ki-joo) and Bong Geun-dae (Pyo Ji-hoon). Learn more about the cast and characters here.

Four people with ID badges stand confidently in a worn school hallway, surrounded by broken glass, promoting the Netflix series "Teach You a Lesson" with the tagline "Let Us Protect You!" and a release date of June 5.

Teach You a Lesson is now streaming.

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