Unpopular products such as blood glucose meters, massage appliances, hearing AIDS, adult diapers or nursing pads. Japan is a very aging country. Shinjuku Wangjing Department Store is a famous old department store in Japan, which can survive and develop with its unique market positioning focusing on the elderly population. The aisles in the mall are wider, the fonts are bigger, and the elevator speed is slower. Japan's aging environment is one of the earliest developed countries in the world, and it is also the most aging country in the world.