When wearing women's hakama (formal divided skirt) at coming of age ceremonies or graduation ceremonies, they tie the hanhaba obi in ichimonji-musubi knot and put hakama on it in order to make their back style look beautiful.
成人式、卒業式、等で女袴を穿く場合に袴の後ろ姿を美しく見せるために一文字結びをし、その上に袴を載せる。