Netflix's most-watched series in late November, "Hellbound", is making a splash on TV, but it first appeared on much smaller screens as an online comic, or "webtoon", optimized for smartphones.
The webtoon format, which began in Korea two decades ago, has shaken up content creation for the movie industry around the globe.
With relatively few overhead costs, webtoons have become a gold mine for tens of thousands of visual stories, with a growing number of adaptations on streaming services such as Netflix, Apple TV Plus and Disney Plus. And readership for webtoons themselves has become increasingly global.