Teach You a Lesson / Season 1 / Episode 1
Season 1

Episode 1

Air Date: 5 June 2026 Duration: 52 minutes Rating: ★ 8.9/10

Episode Review

The School Where Power Matters More Than Rules

Teach You a Lesson starts by immediately showing us what happens when a school stops being a safe place. Episode 1 introduces Daehan High School, where teachers have gradually lost control and one student, Ryu Jun-hyeong, has become practically untouchable because of his father’s political power. The problem is not simply that Jun-hyeong is a bully. The bigger problem is that everyone around him has learned to tolerate his behavior.

Teachers are afraid of him. Students know that complaining will probably make things worse. The school administration has little interest in confronting his family. And his father, Ryu Gwang-pil, has enough political influence to make sure consequences never reach his son. That is what makes the opening so effective. The drama isn’t saying that one bad student destroyed the school. It shows an entire system slowly adjusting itself around one powerful student.

Then Hwa-jin Walks In

And then we meet Na Hwa-jin. Hwa-jin is immediately different from everyone else in the school. He doesn’t seem impressed by Jun-hyeong’s reputation, and more importantly, he doesn’t care about his father’s political connections. As an inspector for the newly established Educational Rights Protection Bureau, Hwa-jin enters the school with an entirely different attitude from the teachers who have been forced to tolerate Jun-hyeong.

His methods are aggressive, sometimes almost absurdly so, but that is also where the show finds its entertainment. Hwa-jin doesn’t simply lecture the students about bullying. He makes them experience consequences. And that is basically the philosophy of the entire series in one episode.

Park Dae-seok’s Story Makes Everything More Serious

The case becomes much darker through Park Dae-seok, a student who becomes an outsider after standing up for a teacher. His situation demonstrates how dangerous the school’s environment has become. The students are not simply afraid of Jun-hyeong because he is physically intimidating. They are afraid because they know that the adults who are supposed to protect them may not be willing to intervene.

That creates one of the most important ideas of Episode 1. The bully is powerful because everyone else has accepted that he is powerful. Once Hwa-jin arrives, that balance starts changing.

Jun-hyeong’s Father Becomes Part of the Problem

The situation becomes even more frustrating because Jun-hyeong isn’t operating alone. His father uses his political position to protect his son, which means the school is dealing with two forms of power at the same time. Jun-hyeong has power among the students. His father has power outside the school. Together, they create an environment where teachers feel like there is almost no point in fighting back. Hwa-jin, however, refuses to play by those rules.

Final Thoughts

Episode 1 does exactly what a first episode should do. It establishes the main character, introduces the bureau, gives us a clear problem and shows us what makes Hwa-jin different. The best part is that the episode doesn’t present the school as simply being filled with bad students. The real problem is the adults and institutions that have allowed the situation to continue. There is also a clear warning about what happens when authority is based on connections instead of responsibility. Hwa-jin’s arrival changes everything, and by the end of the episode, it becomes clear that the Educational Rights Protection Bureau isn’t going to operate like an ordinary government department. It is going to fight fire with fire.

Episode 1 Rating: 8.9/10