Teach You a Lesson follows the ERPB tackling school crime and corruption while uncovering Ga-yun’s murder and confronting justice in education reform.
Teach You a Lesson, a 10-episode South Korean action drama, premiered globally on June 5, 2026. Furthermore, Netflix streams all episodes exclusively on its platform.
The series adapts the controversial Naver webtoon Get Schooled. Moreover, it follows inspectors from the Educational Rights Protection Bureau who use unconventional methods to handle school-related issues. In addition, the cast includes Kim Mu-yeol, Lee Sung-min, Jin Ki-joo, and Pyo Ji-hoon. They portray key members of the Bureau who drive the story forward.
Teach You a Lesson is part of Netflix’s growing lineup of Korean dramas. It delivers a story that blends humor with social commentary. The series highlights the urgent need for reform in education systems.
It uses extreme situations to make its point. Moreover, it challenges viewers to think about what real education should achieve. It questions how schools shape students into responsible members of society. In addition, the series follows a disturbing murder case involving a well-loved teacher. Later, this mystery unfolds alongside the broader critique of the education sector. These elements create a gripping and thought-provoking narrative.
Disclaimer: This article contains major spoilers for the series. Read at your own discretion.
What Led to the Creation of ERPB and Ga-yun’s Death in Teach You a Lesson?
Teach You a Lesson opens with the ERPB suddenly entering a school. Furthermore, they use extreme methods to remove delinquent students. At first, the series does not explain who they are or what they do. However, the truth slowly becomes clear.
Later, the story reveals that Minister of Education Choi Gwang-seok and ex-military officer Na Hwa-jin created the department together. They formed it after a tragic incident in their past. Ga-yun, Gwang-seok’s daughter and Hwa-jin’s fiancée, worked as a teacher. She always defended what was right. In addition, she supported students who needed help.
However, one of the students she protected eventually murdered her. This tragedy left both men devastated. Moreover, it pushed Gwang-seok to create the ERPB. He aimed to rebuild the education system. He also wanted to restore discipline, values, and proper teaching in schools.
Does the Bureau Truly Deliver Justice or Go Too Far?
Throughout the series, several characters try to shut down the Bureau. Furthermore, they criticize its use of strict corporal punishment. They argue that the methods cross ethical lines.
However, Choi Gwang-seok protects the Bureau. Moreover, he points to its results to justify its continued operation. He pushes forward with his goal of delivering justice to those who need it.
In addition, the Bureau expands its focus beyond violent students. It also targets corrupt teachers and manipulative parents who harm others within the system. Later, even Gyu-cheol attempts to dismantle the organization. However, the Bureau continues to operate. Ultimately, it stops illegal and immoral actions in schools and strengthens its control over the education system.
What Really Happened Between Gyu-cheol and Ga-yun?
At first, the story suggests that Gyu-cheol lost control and attacked Ga-yun without reason. However, episode 8 reveals the truth. Furthermore, Gyu-cheol ran a drug operation inside the school.
Ga-yun discovered his illegal activity. Later, she confronted him directly about it. As a result, Gyu-cheol killed her to silence her. After serving time, he receives parole. Moreover, he resumes his drug dealings at another high school. This time, Na Hwa-jin refuses to back down. In addition, he commits to stopping Gyu-cheol once and for all.
Teach You a Lesson Ending Explained
In the end, the Bureau gathers help from teachers across multiple schools. Furthermore, they collect evidence that shows a widespread drug supply network. This coordinated effort strengthens their case against Gyu-cheol.
Later, they finally capture him. However, the truth about him also comes out. He appears not as a hardened criminal, but as a frightened student who struggles to understand genuine care from adults.
Hwa-jin faces a critical moment during the arrest. Moreover, he chooses restraint instead of revenge. He decides not to kill Gyu-cheol and allows the authorities to take him into custody again. In addition, the Bureau continues its mission across different schools. It expands its work to improve education systems and protect both students and teachers.
The ending delivers a hopeful message. It emphasizes that safe and fair education belongs to everyone. Furthermore, it shows that teachers and students must cooperate to build a healthier learning environment. To add, the story stresses accountability for mistakes made by children. However, it also highlights the importance of guidance and learning over punishment alone.
All episodes of the series are available for streaming on Netflix.
Sources: Netflix K-Content, Netflix Korea
