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Series

Teach You a Lesson

2026★ 9.41 seasons

An inspector from the Educational Rights Protection Bureau (ERPB) who is authorized by the government to use physical intervention and unconventional methods to discipline delinquent students and reform the educational system.

Action & AdventureDramaComedy
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Cast

Featured cast
Kim Moo-yulNa Hwa-jin
Lee Sung-minChoi Kang-seok
Jin Ki-jooIm Han-rim
P.OBong Geun-dae

Episodes

1Episode 1Inspector Na Hwa-jin steps into the chaos and takes control of a school plagued by the spoiled son of a powerful politician — to teach him a lesson.52 min2Episode 2With unassuming Bong Geun-dae on his side, Hwa-jin uses his special ops skills to handle a school gang and defend a student who just wants to study.57 min3Episode 3When a teen influencer spreads false claims about her teachers, the team's loose-cannon Inspector Im Han-rim steps in to set the record straight.72 min4Episode 4Choi Gang-seok weathers a political attack on his bureau. Hwa-jin's team visits an elite school to uncover why a student attacked a respected teacher.68 min5Episode 5When an elementary school teacher's spirit wears down under pressure, Hwa-jin steps in to be her substitute — turning the tables to solve the case.66 min6Episode 6Four juvenile delinquents think they're above the law — until the team takes an interest in their extracurricular crimes and gives a harsh reality ch…69 min7Episode 7Geun-dae goes undercover to help a father find his gambling addict son. To undermine the bureau politically, Hwang Gi-tae visits a juvenile inmate.64 min8Episode 8After a pre-med student collapses in class, Hwa-jin investigates his obsessive mother, whose access to illicit pills hints at a larger conspiracy.60 min9Episode 9To help a student escape his exploitative friends, Han-rim adopts a new persona to join his circle. Cho Gyu-cheol's return puts the bureau in danger.67 min10Episode 10After public backlash hits the bureau, Hwa-jin and his team go rogue to expose a deadly conspiracy led by a violent student-run gang.61 min

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