It was an ancient legacy dating back to the very dawn of its birth, so old that it had to be traced back an unknown number of billions of years.
Perhaps.
When it had first come into being.
There had barely been any living people in the entire Silver Mist Sea Domain. It had still been an era when the various races warred endlessly for supremacy.
And the instant he obtained it and finished absorbing the relevant information.
Ling Wuyuan immediately realized that this so-called Deadly Silent Deep Shadow Sea had, indeed, been born because of it.
Likewise.
The special race that existed by relying on the unique environment of the Deadly Silent Deep Shadow Sea—the Deep Shadow Demon Fish—had actually come into being and continued to exist due to a small amount of power that ancient legacy had deliberately leaked.
To them.
That ancient legacy was their light and warmth.
In essence.
The Deep Shadow Demon Fish were equivalent to the basic trials and basic guards that came with that ancient legacy. It was like how all kinds of treasures were often surrounded by a few wild monsters serving as fixed NPCs. In other words.
The meaning of the Deep Shadow Demon Fish's existence was to die—to die protecting this legacy.
That was the purpose behind the Deep Shadow Demon Fish's birth.
Only powerhouses capable of killing them and breaking into the deep-sea region possessed the qualifications to undergo further trials.
Moreover, after various powerhouses forcibly killed those Deep Shadow Demon Fish, so long as no one obtained the legacy for a period of time, brand-new guardians would automatically be nurtured as replacements.
They would be other kinds of guardians, different from the Deep Shadow Demon Fish but no weaker than them.
As for why the natural environment of