"Boy's Festival" is popular as Children's Day. It is said that it was in the Kamakura period that it became Tango no Sekku as it is today. Believed to be a medicinal herb that wards off evil spirits, irises are associated with martial arts (the preciousness of martial arts), and have become established as the Boys' Festival.

May dolls represent the strong and healthy growth of boys and the prosperity of the family.