This exact string is most likely a or a database key used to find specific metadata for media files.

Meanwhile, Japan's popular TV shows, such as "Terrace House" and "Grand Blue Dreaming," had already gained a massive following worldwide. These shows had paved the way for Japanese dramas to reach a global audience, and Yui was determined to build on this momentum.

These appear to be unique identifiers, internal codes, or perhaps specific file/project names that aren't indexed in general databases.