Hihīrokane

Hihīrokane (火緋色金, 'Brilliant Scarlet Flame Metal') is an extremely rare metal of unknown origin noted to contain mythological properties. A bright scarlet metal that shines brightly. This mythical metal is extremely light compared to gold and yet posses extraordinary hardness, capable of destroying diamond with no effort. It is said that this metal can never rust, not even by the roaring seas over thousands of years and has a high heat capacity, instantly boiling water and absorbing the heat molten lava. According to legend, only those who possess legendary mastery over the Metal Release Kekkei Tōta can create and wield this metal.

Influence
Hihīrokane is a mythological Japanese metal