This Japanese educational software uses the popularity of Bae Yong-joon, the South Korean actor who became a mass phenomenon in Japan thanks to the drama 'Winter Sonata' and the mid-2000s 'hallyu' boom (the Korean cultural wave), as a hook for teaching basic Korean: vocabulary, phrases, and pronunciation structured into short lessons with audio and touchscreen support.
It's a clear example of how DS's Japanese catalog fully mined the vein of celebrity-driven language software, a phenomenon tied to that decade's very specific cultural moment, with no release outside Japan.

If you liked this one