Ash Release (灰遁, Haiton; Viz "Ash Style") is a unique brand of ninjutsu utilized by Koi Shūrai that is a mix of Fire and Earth Release's that mimics the sand manipulation used by Gaara and the Iron Sand used by the Third Kazekage. It allows him to manipulate the ash and control its temperature with his chakra to either burn his target to pieces or crush them under tons of pressure.