Shinjuku Isetan is the most luxurious department store in Japan and in Asia with 100 years of history.
Heard that every department stores in Asia are following the fashion trends of Shinjuku Isetan. Kind of Asian version of Bergdorf Goodman or Neiman Marcus Manhattan.
Most brands, even most luxury brands, are displayed in multishop format. All brands are luxury and very expensive.
What's even more astonishing is its food section and men section. They sell very expensive wagyu steak (around $1,000 per a big meat loaf).