May 5 of each year is a National Holiday that celebrates Children’s Day in Japan. Originally the day was celebrated as “Boy’s Day” to correspond to the Doll Festival for Girls (where families display the Hina Dolls that is held on March 3.
However, the symbols of courage and strength mainly honor boys on May 5. It is the custom for families with male children to fly Koinobori (large fish flags) outside of the home. They represent a symbol of success. Families also eat chimaki and kashiwamochi (different types of special rice cakes) and display warrior dolls (“musha ningyo”) in the home during this celebration.