“Starting today, we’ll teach this school a lesson.” ‘Teach You a Lesson’ main poster & trailer revealed!

Students and teachers who cross the line, and parents whose presence has shattered the education scene—now the School Authority Protection Bureau is ready to launch a decisive strike. The Netflix series 〈Teach You a Lesson〉​, which depicts the Bureau’s relentless efforts to set things right by standing with the victims, has unveiled its main poster and main trailer, promising the most electrifying action-packed entertainment of this summer.

The released poster shows four agents of the School Authority Protection Bureau striding down a school hallway as broken window glass and scattered desks and chairs fly everywhere, teasing curiosity. In contrast to the chaotic background, “Nawa-jin” (Mu-yeol Kim) wears a relaxed smile; “Choi Kang-seok” (Sung-min Lee) stands behind him with a grim look; “Lim Han-rim” (Ji-ju Jin) stares straight ahead with intriguing eyes; and “Bong Geun-dae” (Ji-hoon Pyo) clenches his fist with a resolute expression. Each of the Bureau’s four agents brings a different kind of appeal, raising even more questions about what kind of teamwork they’ll carry out to protect the victims amid a collapsed education system.

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The main trailer released together quickly ramps up immersion by showcasing a runaway education scene and an upfront collision with the School Authority Protection Bureau. Leading the way is “Choi Kang-seok,” who founded the Bureau to catch the “monster” destroying the education environment. Next comes “Nawa-jin,” a supervising officer who steps directly into school special guidance. Under the motto “You catch them with the same nonsense,” “Lim Han-rim” is deployed, and “Bong Geun-dae” infiltrates the school using his unique look and his pathetic vibe as weapons—making the Bureau’s fiercely energetic performances in Teach You a Lesson truly hit hard.

As if mocking the words, “The School Authority Protection Bureau of the Republic of Korea will teach this school a lesson starting today,” students who commit flights in plain sight, and parents who disrupt class, appear—along with others calling for the abolition of the Bureau—hinting at how rough the Bureau’s journey will be. But only for a moment—until they finally come to a painfully clear realization, the trio of “Nawa-jin,” “Lim Han-rim,” and “Bong Geun-dae,” who keep delivering real education, carry out the message with thrilling satisfaction, promising an electrifying catharsis.

With a fresh setup as a fictional government agency, the School Authority Protection Bureau, and an all-over-the-place showcase of standout characters that break away from common sense, the Netflix series 〈Teach You a Lesson〉

, which tells a satisfyingly bold story about trying to restore the education scene, will be released exclusively on Netflix on June 5 (Fri).