May 5 each year, the Japanese Boy's Day.
People will greet the boy's Day flag flying carp. Look forward to their children grow up healthily. In order to bless the boys home, health, happiness, on this day every household in Japan will be made of brightly colored paper or cloth, shaped like a carp ribbons, and then these strings in the bamboo pole on the ribbon, and the windmills and gold tie, hang on on the roof. The reason to do so because the Japanese believe that the most carp spirit and vitality, hope that our family is like a carp as a boy, so this day is called "Lei Day."