スマイルファミリー。。。
Shichi-go-san is a traditional event that is held in celebration of children’s growth. Shichi-go-san also refers to November 15th when this event takes place. Shichi, go, and san literally mean seven, five, and three, and these three numbers represent the ages of seven, five, and three.
They have also regarded these three ages as particularly important stages of children’s growth.