Kagami Nakitama

Along the southern edge of the small island, there stand a giant heap of ice. Its surface is smooth, and surprisingly not as cold as one would think. Inside the ice there seems to be faces, smiling happy faces that seem to wink and speak as the sun hits them from different directions. This is the Kagami Nakitama(window of departed souls). Said to be the souls of all the warriors lost in battle, they now grant great power to those that seek it and are willing to pay the price.