May 5th is the “Children’s Day”, especially it is Boys’ Day. (Girls’ Day is March 3rd.) The family which have a boy celebrate and pray their boy’s good health and happiness. In the house, they display the armor (kabuto) or/and samurai doll. At the garden, carp streamers as “Koinobori” are hung for symbol of strong carp’s swimming-up waterfall. Koinobori are very big colorful flags (1.5 meter to 3 meter long). I like to see that Koinobori are swimming in the May’s blue sky.