japanese fish flag: koinobori. in japan fish flags are s for children's day.

celebrating double day holiday originally tango sekku boy’s month formed pair hinamatsuri girl’s celebrated third expanded incorporate good wishes boys girls holiday’s kodomo children’s 1948 flags symbol family’s hope children exhibit fierce determination vigour success colours japanese fish correspond member family largest strand black father’s red mother’s blue carp symbolises eldest child varying koinobori japan symbols flag