Si-hyun who lost all memory after a car accident and has colored hearing in which she can see sounds in colors, tries to complete the melody in her dreams. As the song nears completion, Si-hyun's fragmented memories return to her.
2 landscape wallpapers · click any to open Mac Mode
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Last updated: June 9, 2026
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Quick answers about One Step wallpapers, cast, and downloads.
Moviely has 2 free One Step cinematic wallpapers available to browse, preview in Mac Mode, and download.
Yes. Every One Step backdrop on Moviely is free to preview and download for personal desktop or mobile wallpaper use.
One Step wallpapers include 4K and HD options. Moviely recommends the best size for your screen and offers original-quality downloads when available.
Yes. Open any One Step wallpaper in Mac Mode to preview it on a desktop or iPhone lock screen before downloading.
Open the One Step page, pick a backdrop, choose your preferred resolution (HD, Full HD, or Original), and click Download.
Yes. Select One Step backdrops are available in 4K / original quality for high-resolution displays.
One Step released in 2017. Moviely hosts cinematic wallpapers captured from the movie's official backdrop imagery.
One Step is categorized as Music, Drama.
Juhn Jai-hong directed One Step.
One Step stars Sandara Park, Han Jae-suk, Cho Dong-in, Hong Ah-reum, Jo Dal-hwan, and more.
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