School violence, out-of-control parents, and teachers stripped of authority — Netflix’s upcoming Korean drama Teach You a Lesson takes on South Korea’s most pressing social issues with a sharp, cathartic premise and a powerhouse cast ready to deliver justice, one classroom at a time.
Teach You a Lesson: Overview
| Detail | Info |
|---|---|
| Drama Title | Teach You a Lesson |
| Premiere Date | June 5, 2026 |
| Platform | Netflix (Global) |
| Episodes | 10 |
| Director | Hong Jong Chan (Juvenile Justice) |
| Writer | Lee Nam Kyu (Daily Dose of Sunshine) |
| Based On | Popular webtoon by Chae Yong Taek |
| Genre | Drama / Social Thriller |
What Is Teach You a Lesson About?
Teach You a Lesson is a series about the fictional Educational Rights Protection Bureau (ERPB), a government task force created to restore teachers’ authority in an era of unruly students, demanding parents, and struggling schools.
The story follows the ERPB as it appears in Korean schools and enforces accountability against students and parents who cross the line, delivering what the series frames as corrective justice. allkpop
Meet the Cast — Four Characters, Four Energies

The newly released poster captures the confident strides of four key ERPB figures against the backdrop of a chaotic school hallway, each displaying a distinct personality — Na Hwa Jin (Kim Moo Yeol) with a relaxed smile, Choi Gang Seok (Lee Sung Min) carrying a serious presence, Im Han Rim (Jin Ki Joo) with a sharp gaze, and Bong Geun Dae (Block B’s P.O) with his fist clenched.
Kim Moo Yeol as Na Hwa Jin — a former special forces member and ERPB inspector, always in a black suit. Despite appearing blunt, he consistently stands with victims and is expected to deliver decisive action against those threatening the school environment.
Lee Sung Min as Choi Gang Seok — the education minister who founded the ERPB, the bureau’s steady ideological center, determined to fix a struggling education system.
Jin Ki Joo as Im Han Rim — a junior supervisor and special forces colleague of Na Hwa Jin, whose bold personality and actions contrast sharply with her polished first impression.
P.O rounds out the team as Bong Geun Dae — described as the brilliant but charmingly messy officer of the group.
What the New Trailer Shows?
The teaser begins with Na Hwa Jin introducing himself as an ERPB inspector in front of students who question his identity. It then shows the harsh reality of the education system — classroom disruption and school violence spreading out of control, along with gambling, drugs, and the formation of violent gangs.
The trailer intensifies this contrast between order and chaos, depicting a rapid clash between an uncontrollable school environment and the intervention of the ERPB. The diverse inspectors demonstrate distinct personalities and approaches as they confront escalating situations. allkpop
For more K-Drama previews and streaming guides, visit TechnoSports.co.in.
Also read: Best K-Dramas Coming to Netflix in June 2026 — TechnoSports.co.in





