体の真ん中の中心線から左右に黒と白に分かれているコスチュームです。これを着て何人かで並ぶと横の人の黒と自分の黒で１つの体のように、横の人の白と自分の白で１つの体のような錯覚で見えます。錯視といういわゆる目の錯覚によるものです。みんなで片足を上げて踊ると錯覚により、人間が両足を上げて通常ではありえない動きをして踊っているように見える不思議な錯視ダンスを披露できます。
It is a costume where black and white are divided at left and right from center line in the middle of the body.
When several people stand in a line by wearing it, we feel as if it is one body with the black a person next to me and I wear. We also feel as if it is one body with the white a person next to me and I wear.
It is optical illusion, and in other words, illusion by eye.
If we dance by lifting one leg, we can show a mysterious dance by optical illusion where we feel as if we were dancing by the movement we hardly make in life by lifting our both legs.
