The Flag of Koto Tokyo, Japan, is a symbol representing the special status of Tokyo as a metropolitan prefecture within the country. Its design consists of the Japanese national flag (NISHI-HOMJI or Hinomaru) in the center and the city emblem of Tokyo, known as Takeshirushi (Taking Mound Symbol), on the lower half. The Taking Mound Symbol is a stylized image of Mount Fuji with three parallel bars beneath it, symbolizing harmony and unity among the people of Tokyo. The flag was officially adopted on April 1, 1947, reflecting the unique administrative structure and heritage of Koto Tokyo within Japan.