The Dark Release (冥遁, Meiton; Viz "Shade Style") is a specialised nature transformationkekkei genkai that can be used to absorb, manipulate, and release chakra taken from an opponent. Hiruko used techniques of this nature through a mark on his left hand. This mark resembles two diamonds, one overlapping the other. Chakra is absorbed through the upper square, while it is released and manipulated through the lower. It is unknown what elements this nature entails.