TV Series
★9.4(1,016 votes)
20261 Season10 EpisodesEndedTeach You a Lesson
“Let us protect you!”
Action & AdventureDramaComedy
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.
Episodes & Seasons
Browse episodes by season for this series.
Season 1
10 EpisodesThe National Assembly and the Minister of Education passes the Amendment to the Act on the Protection of Teachers' Rights. With the passage of the law, a new government organization, the Educational Rights Protection Bureau, is formed. Na Hwa-jin belongs to the Educational Rights Protection Bureau. He is sent to a problem school as a supervisor. There, he can educate the students without any restrictions or limitations.
EP 01
01.Episode 1
52m★ 8
2026-06-05
01.Episode 1
52m★ 8
Aired 2026-06-05
Inspector 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.
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EP 02
02.Episode 2
57m★ 8
2026-06-05
02.Episode 2
57m★ 8
Aired 2026-06-05
With 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.
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EP 03
03.Episode 3
1h 12m★ 8.5
2026-06-05
03.Episode 3
1h 12m★ 8.5
Aired 2026-06-05
When 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.
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EP 04
04.Episode 4
1h 8m★ 8.6
2026-06-05
04.Episode 4
1h 8m★ 8.6
Aired 2026-06-05
Choi 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.
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EP 05
05.Episode 5
1h 6m★ 8.7
2026-06-05
05.Episode 5
1h 6m★ 8.7
Aired 2026-06-05
When 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.
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EP 06
06.Episode 6
1h 9m★ 8.8
2026-06-05
06.Episode 6
1h 9m★ 8.8
Aired 2026-06-05
Four juvenile delinquents think they're above the law — until the team takes an interest in their extracurricular crimes and gives a harsh reality check.
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EP 07
07.Episode 7
1h 4m★ 8.6
2026-06-05
07.Episode 7
1h 4m★ 8.6
Aired 2026-06-05
Geun-dae goes undercover to help a father find his gambling addict son. To undermine the bureau politically, Hwang Gi-tae visits a juvenile inmate.
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EP 08
08.Episode 8
1h★ 8.4
2026-06-05
08.Episode 8
1h★ 8.4
Aired 2026-06-05
After a pre-med student collapses in class, Hwa-jin investigates his obsessive mother, whose access to illicit pills hints at a larger conspiracy.
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EP 09
09.Episode 9
1h 7m★ 8.3
2026-06-05
09.Episode 9
1h 7m★ 8.3
Aired 2026-06-05
To 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.
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EP 10
10.Episode 10
1h 1m★ 8
2026-06-05
10.Episode 10
1h 1m★ 8
Aired 2026-06-05
After public backlash hits the bureau, Hwa-jin and his team go rogue to expose a deadly conspiracy led by a violent student-run gang.
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