what is this

Shihanmato

Shihan means - as far as I know - qarter, so everything is smaller. Its a receational sport especially for elder people, because these bows have just a drawweight of 4-5 kilogramms.

(I am just repeating - have no real knowledge about this)

I think it's a form of the old 'yoryuu' (willow bow) game. The bow is lighter, suitable for older people and children, and the shooting form is less formal then kyudo (e.g. no glove.)