Following the lead of China, the European Union (EU), and South Korea, Japan has unveiled plans to build its own long-distance quantum communication network. The first phase will link the country's three major cities—Tokyo, Nagoya, and Osaka—covering a distance of 600 kilometers. Construction is expected to be completed by early 2027, with field testing planned later that year. The initial rollout will focus on sectors where confidentiality is critical, such as healthcare and finance, to establish a Japan-specific quantum communication standard by 2030