One of Kaguya's mysterious techniques, it allows her to transport things to the nothingness dimension, which causes them to turn into glass, and soon after that shatter into pieces. Because Kaguya can access this dimension freely, she can use this on herself, re-appearing anywhere she wants after her body has shattered, because the nothingness dimension is not restricted by the laws of spacetime. This allows her to confuse and surprise most of her opponents, and no one but Sushun has been able to actually hit her, because he could pick up her thought waves. After this single hit however, he was brutally defeated, which was a unique happening on itself.