This article explores the percentage of Japanese citizens who are millionaires, as well as the factors that contribute to their success. According to a report from Credit Suisse Research Institute, there were approximately 1 million millionaires living in Japan as of 2018. This figure represents 1% of all households in Japan and accounts for around 7% of global millionaire households, with most residing in Tokyo or its surrounding prefectures like Osaka or Kanagawa Prefecture. Factors contributing to the increase in millionaires include economic growth, stock market gains, real estate investments, and inheritance. Challenges faced by Japanese millionaires include taxation, social pressures, investment risks, and succession planning.