Teach You a Lesson (Season 1)

Teach You a Lesson (참교육, 2026) is a Korean series you can watch online on iFILM — part action show, part school drama, part pitch-black comedy from director Hong Jong-chan. Classroom respect has collapsed. So a squad of unconventional inspectors moves in, armed with lessons no textbook would ever print.

Kim Mu-yeol and Lee Sung-min lead the roster of fixers who step in where ordinary teachers gave up long ago. Bullies, indifferent staff, screaming parents — each one gets a sharp, no-nonsense correction. Adapted from a hit webtoon, the show runs on a blunt contrast: behind the rough humor sits a real question about what schools have become and who answers for it. It lands best for viewers who like their Korean dramas with fists and a hard moral streak. Stream Teach You a Lesson (2026) online on iFILM.