Ultimately, all Immortal Gold is birthed from Immortal Stone Mines.
Ordinary metals absorb the Rules of countless ages and transform into Rule Bodies, which is Immortal Gold.
The Rules absorbed vary, and the resulting level of Immortal Gold evolved also differs.
Just like Martial Artists; using the first layer of rules to refine one's body results in a Bronze Immortal Body, using the third layer yields a Golden Immortal Body.
Immortal Gold is the same, and because it exists far longer, it is much harder than a same-level Nine Stars Martial Artist.
The so-called Bronze and Golden Immortal Bodies are only metaphors; Immortals can never reach the hardness of same-level Immortal Gold, even if Shi Hao cultivates the Nine-Death Heavenly Art, it merely comes infinitely close.
This is determined by the Heaven and Earth Rules.
Unless—
Shi Hao creates his own world and uses another kind of rule to strengthen himself, then he might break free from this limitation.
