After hundreds of years, the Giant Golden Fish transformed into a spirit monster.
Spirit monsters and demons appear similar but are vastly different.
Demons are akin to cultivators who absorb Sun Essence and Moonlight to gain their essence, most often as animals or ghosts.
Spirit monsters have various ways of gaining essence, and their types are extraordinarily diverse; they include not only living beings but also objects.
Simply put, spirit monsters gain their essence through natural laws and possess strange and unique abilities.
For example, the Giant Golden Fish attained its essence by binding itself to Imperial Power.
The abilities of the Giant Golden Fish likely include fulfilling wishes. This is not a spell but a law that cannot be replicated by ordinary people.
"Why did you choose this woman?"
"She has the potential to become an Emperor."
The Giant Golden Fish approaches only emperors; whoever it approaches is destined to become an emperor.
"Her?"
