The production studio at "Baby, the Stars Shine Bright" featured in an episode of Tokyo Fashion Express. Their designs typically require up to 50 sewing patterns, which is about 5 times as many as the average dress. Detailed notes on measurements and specifications are written for the sewing factory.
The sewing factory is in Ibaraki prefecture. For more than 20 years they've been sewing clothes exclusively for BTSSB. 17 people work there, most of them being veterans age 60 or over. Due to the complexity they work in teams for ironing, sewing lace and ribbons, as well as completing gathers and frills.
The manager of the factory, Sumiko Watahiki, says in an interview: "There's tons of gather, lace, and layering, which requires a lot of sewing. At first, I doubted I could do it! It was that hard. (But) I'm always impressed with the adorable designs when I see the finished products or while I work."
