>>52866314it's japanese name is a reference to Hihi'irogane/Scarletite.
which is arguably the same substance as orichalcum, if it ever actually existed, but has a slightly different mythology.
Or well, potentially the same mythology, BUT ONLY IF you assume that one of alleged ancient Japanese utopia empire's flying cities was actually the city called Atlantis by the Greeks.
https://tvtropes.org/pmwiki/pmwiki.php/Main/HihiirokaneMost notably, while Orichalcum was said to generate light, Hihi'irokane generated not just light, but heat, which explains why it sets up Sunny Day.
>A quick google search also reveals that what Orichalcum is currently lost to time, and it's mentioned in a story about Atlantis of all things.Funnily enough, the game's internal name for area zero is atlantis, I'm not sure why I never see it being mentioned in these discussions