History Main / Hihiirokane

* Though it doesn't make a physical appearance in LightNovel/Overlord, according to Narberal, ''adamantite'' is a soft metal compared to hihi'irokane.

* In [[Anime/KillLaKill Kill la Kill]] protagonist Ryuko uses [[ImprobableWeaponUser half a giant pair of scissors]] as a sword. The scissors are made of compressed Life Fiber, which gives the blade a scarlet hue. The blade is shown multiple times to be incredibly durable and reactive to its wielder's will, as Life Fibers are a symbiotic alien life form.

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Subtrope of FantasyMetals, and frequently overlaps with LawOfChromaticSuperiority. Compare ColdIron, {{Mithril}}, {{Orichalcum}} and ThunderboltIron. A weapon crafted from hihi'irokane may be a TechnicolorBlade or even a FlamingSword.

It's not quite clear whether hihi'irokane was an ore or an alloy, except that it was apparently a common metal in ancient times, with many important objects (including the [[TheImperialRegalia Imperial Regalia of Japan]]) said to be made from it. In fiction, hihi'irokane is generally depicted as a form of {{Unobtanium}} which is harder than diamond, resistant or immune to rust, an excellent conductor of heat (or even a ''generator'' of heat), and an even better conductor of [[SoulPower souls]], [[EmotionalPowers emotions]] or spiritual energy. Due to its similarities to {{Orichalcum}}, in FantasyKitchenSink settings they are often compared to each other or even considered to be the same thing.

The first appearance of the metal was in the Takenouchi Documents, a set of pseudohistorical manuscripts which [[NewerThanTheyThink appeared in 1935]], claiming to be the last surviving records of a globe-spanning {{Utopia}} ruled by the Emperor of Japan billions of years ago. While largely regarded as a hoax, a number of the Documents' ideas became absorbed into popular culture, hihi'irokane included.

* In ''VideoGame/GranblueFantasy'', 10 Chrome Nuggets can be combined into Hihiirokane ([[Woolseyism localised as]] "Gold Nugget" and [[http://granblue.wikia.com/wiki/Gold_Brick "Gold Brick"]] respectively), which can be used to break the upgrade {{Cap}} on a weapon of any rarity. Hihiirokane is also one of the ingredients required to upgrade a Revenant Weapon to its final form, which in turn unlocks a powerful new character.

* While ''DungeonsAndDragons'' does not feature hihi'irokane by name, it has a number of materials with similar properties:

** Jubei's brother Tomonori owned a [[SoulCuttingBlade soul-cutting katana]] actually named Hihiirokane, which can [[MorphWeapon take different forms depending on the wielder]]. It first appears in ''LightNovel/BlazBluePhaseShift 1'', before [[ChekovsGun becoming]] an important PlotDevice in ''VideoGame/BlazBlueCentralFiction''.

** Hihiirokane is mentioned as a component of Hakumen's Susano'o Unit, and is also used in the armor of Mu-12 and Nu-13.
** Jubei's brother Tomonori wielded a katana actually named Hihiirokane, which can transform into a giant claw with the ability to [[SoulCuttingBlade cut souls]].

Similar to {{Orichalcum}}, it's not quite clear whether hihi'irokane was an ore or an alloy, except that it was apparently a common metal in ancient times, with many important objects (including the [[TheImperialRegalia Imperial Regalia of Japan]]) said to be made from it. In fiction, hihi'irokane is generally depicted as a form of {{Unobtanium}} which is harder than diamond, resistant or immune to rust, an excellent conductor of heat (or even a ''generator'' of heat), and an even better conductor of [[SoulPower souls]], [[EmotionalPowers emotions]] or spiritual energy. Sometimes it and Orichalcum are treated as different names for the same metal.

* ''VideoGame/BlazBlue'': It is mentioned that Mu-12 and Nu-13's armors are made of Hihiirokane.

* In the ''SoulSeries'' "Hihiirokane" is a recurring unlockable weapon for Yoshimitsu, consisting of a katana and wakizashi forged from that metal.

Similar to {{Orichalcum}}, it's not quite clear whether hihi'irokane was an ore or an alloy, except that it was apparently a common metal in ancient times, with many important objects (including the [[PublicDomainArtifact Imperial Regalia of Japan]]) said to be made from it. In fiction, hihi'irokane is generally depicted as a form of {{Unobtanium}} which is harder than diamond, resistant or immune to rust, an excellent conductor of heat (or even a ''generator'' of heat), and an even better conductor of [[SoulPower souls]], [[EmotionalPowers emotions]] or spiritual energy. Sometimes it and Orichalcum are treated as different names for the same metal.

* ''Manga/{{Spriggan}}'' has rogue KGB agent Koichi Moroha uses a Hihiirokane-made sword in the Fire Orb arc, which was made to take out Yu Ominae's Orihalcon combat suit. It, however, cannot break anything made out of [=OOPArt=]-type metals.

Similar to {{Orichalcum}}, it's not quite clear whether hihi'irokane was an ore or an alloy, except that it was apparently a common metal in ancient times, with many important objects (including the [[PublicDomainArtifact Imperial Regalia of Japan]]) said to be made from it. In fiction, hihi'irokane is generally depicted as a form of {{Unobtanium}} which is harder than diamond, resistant or immune to rust, an excellent conductor of heat (or even a ''generator'' of heat), and sometimes has powers over [[SoulPower souls]] or [[EmotionalPowers emotions]]. Sometimes it and Orichalcum are treated as different names for the same metal.

Not to be confused with ''VideoGame/RedSteel''.

* In the ''Magic of Incarnum'' supplement for ''DungeonsAndDragons'' 3.5, items crafted from Pentifex carry "a peculiar brushed-gold color that carries hints of red and brown" and are strongly associated with incarnum ([[SoulPower soul energy]]). However, this is due to their use as a symbol of The Pentifex Order (an organisation that regulates the use of incarnum) rather than a property of the metal itself, which is functionally identical to steel.

Similar to {{Orichalcum}}, it's not quite clear whether hihi'irokane was an ore or an alloy, except that it was apparently a common metal in ancient times, with many important objects (including the [[PublicDomainArtifact Imperial Regalia of Japan]]) said to be made from it. In fiction, hihi'irokane is generally depicted as a form of {{Unobtanium}} which is harder than diamond, resistant or immune to rust, an excellent conductor of heat (or even a ''generator'' of heat), and sometimes has powers over souls or emotions. Sometimes it and Orichalcum are treated as different names for the same metal.

* ''Manga/TheSwordOfRoaringFlames'' revolves around UsefulNotes/YagyuJubei fighting [[{{Youkai}} Nue]] with bodies made of hihi'irokane, which is so hard that it can only be cut by a sword made from the same substance.

* Appears in ''Franchise/ShinMegamiTensei'' as a material which can be crafted into weapons.