It promotes bags and other merchandise themed after Mario and Luigi ahead of the global release of Mario and Luigi: Brothership in early November 2024.
Mario and Luigi: Brothership will be available on Nintendo Switch simultaneously worldwide on November 7, 2024.
The game is also alternatively known in Japan with a slightly different title, which is Mario and Luigi RPG: Brothership.
Even though the goods have been available since long before the release of Mario and Luigi: Brothership, Nintendo still has ample stocks for most of them in its storefronts in Tokyo, Osaka, and Kyoto.