The premiere episode of a highly-anticipated drama in the coveted Sunday night slot has experienced an unexpected setback, registering only a single-digit viewership rating - a rare occurrence in the Japanese television industry. The factors contributing to this decline and its potential consequences on the show's future are currently under investigation by the broadcaster.

In Japan, double-digit ratings for a TV show, especially for the prime Sunday night slot, are a signifier of success and popularity. This drop in initial viewership could indicate a shift in viewers' preferences or competition from other programs. The ratings also directly influence advertisement revenues, a major source of funding for these broadcasts. There may be discussions on social media, among fans, and within the industry about what this means for the future of the drama.

In the US or the EU, TV ratings are also a major indication of a show's success and heavily influence the continuation of the series. However, with increasing viewership on streaming platforms, traditional TV ratings have become only one of several measurements for a show's popularity. In some cases, shows with initially low traditional TV ratings have found new life and high popularity online.