Teach You a Lesson

The finale’s hostage crisis, Hwa-jin’s injury, and Gang-seok’s line-crossing punch bring Hwang Gi-tae’s long game to an unresolved but honest close.

Episode 9 exposes an uneven friendship as a form of harm, while Gyu-cheol’s quiet documentation turns Hwang Gi-tae’s own weapon against him.

A student collapses during an exam. His mother kept sending him back in. Episode 8 of Teach You a Lesson — the one about what happens when a parent’s dream becomes a child’s prison.

The Bureau follows exploitation out of the classroom in Episode 7, as Geun-dae goes undercover in a gambling operation targeting students.

Episode 6 tests the Bureau’s limits against juveniles who know the law can’t touch them, asking what justice looks like below the age of responsibility.

A parent’s messaging-app harassment nearly kills a teacher in Episode 5, and the Bureau’s mirror-treatment resolution leaves nothing feeling clean.

Teach You a Lesson Episode 4 recap: a beloved teacher turns out to be the predator, and the Bureau exposes an academic corruption network reaching political funders. Watch on Netflix.

Teach You a Lesson Episode 3 recap: the Bureau’s tragic origin is revealed, a 60,000-follower student weaponizes cancel culture, and the team is finally complete. Watch on Netflix.

Teach You a Lesson Episode 2 recap: Hwa-jin dismantles a gangster-recruiting school ecosystem, and his tragic connection to the Bureau’s founding is revealed. Watch on Netflix.

A student’s death exposes a cover-up protecting a presidential frontrunner’s son. Episode 1 introduces the Bureau and Na Hwa-jin’s uncompromising method.