A homeroom teacher of Yosan Private High School has an accident, and thus a substitute comes to fill in. Han Bong-Gu is a mysterious man, and after strange occurrences the class president Ye-Rim tries to get to the bottom of this mystery.
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Last updated: June 9, 2026
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Quick answers about Nightmare Teacher wallpapers, cast, and downloads.
Moviely has 3 free Nightmare Teacher cinematic wallpapers available to browse, preview in Mac Mode, and download.
Yes. Every Nightmare Teacher backdrop on Moviely is free to preview and download for personal desktop or mobile wallpaper use.
Nightmare Teacher wallpapers are available in HD and original quality, with smart resolution suggestions based on your display.
Yes. Open any Nightmare Teacher wallpaper in Mac Mode to preview it on a desktop or iPhone lock screen before downloading.
Open the Nightmare Teacher page, pick a backdrop, choose your preferred resolution (HD, Full HD, or Original), and click Download.
Nightmare Teacher first aired in 2016. Moviely hosts cinematic wallpapers captured from the TV series's official backdrop imagery.
Nightmare Teacher is categorized as Mystery, Drama.
Hyun Moon-seop directed Nightmare Teacher.
Nightmare Teacher stars Uhm Ki-joon, Kim So-hyun, Lee Min-hyuk, Seo Shin-ae, Baek Seung-do, and more.
Nightmare Teacher has a runtime of 16min.
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