Template:Infobox/Naruto/Genetic <section begin=summary />The Steel Release (鋼遁, Kōton, Viz: Steel Style) is a combined nature transformation kekkei genkai. It is unknown what elements this nature entails.<section end=summary />
- In Gaara Hiden, Metoro Konjiki from Ishigakure can use the nature to produce steel weapons.
- In Naruto Shippūden the Movie: The Will of Fire, Hiruko, who stole this nature from an unknown shinobi by using his Chimera Technique, turns his body into steel, making it virtually indestructible.de:Kouton - Stahl
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