This story covers a popular reality show on Fuji TV that closely follows the daily life of a prominent Japanese family consisting of fifteen members. The show presents an intimate look at the family's routines, their strong bond, and survival strategies, gaining a significant fan base in Japan. This news story investigates this reality show phenomenon, its background and the reasons for its soaring popularity.

In Japan, traditional family values are considered critical, and many Japanese viewers find large family living appealing. The growing popularity of a reality show featuring a 15-member family reflects these societal values and viewers' interest in exploring the dynamics of large family living. This interest is further stimulated owing to Japan's ageing population and decreasing birth rates.

In the United States or the EU, reality TV shows centered around large families, such as 'Keeping Up with the Kardashians' or '19 Kids and Counting', have been popular over the years. However, cultural nuances and societal values presented in these shows differ quite significantly from their Japanese counterparts. This is primarily due to dissimilar family structures, societal norms, and viewers' interests.