Liu Yuanchen racked his brains but still could not recall any such Innate Spirit Treasures or Innate Spirit Roots in the Primordial World.
Since they were all Low-Grade, they were likely items produced locally in the Vast Sea Realm.
The limit of a Lesser Thousandfold World was nurturing nine Low-Grade Innate Treasures.
This included Innate Spirit Treasures, Innate Spirit Roots, and Primordial God-Demons.
Of the three, Innate Spirit Treasures were the easiest to nurture because they lacked life.
Innate Spirit Roots possessed life but no consciousness, making them relatively easy to nurture as well.
Only Primordial God-Demons possessed both life and consciousness, with boundless potential, and were the hardest to nurture.
A Lesser Thousandfold World generally would not contain more than one Primordial God-Demon.
Innate Spirit Treasures, however, were the easiest to generate; having six or seven was nothing unusual.
The Vast Sea Realm could produce a Low-Grade Innate Spirit Treasure like the Sea-Suppressing Pagoda, with twelve Innate Treasure Restrictions. This showed that its origin essence was exceedingly abundant.
According to the records of the Earth Immortal Path, if a Lesser Thousandfold World could nurture the finest Low-Grade Innate Spirit Treasures, it was not far from becoming a Middle Thousandfold World.
Even if such a Lesser Thousandfold World had not yet gathered all nine Innate Treasures, it should have had seven or eight.
Yet it currently possessed only three Spirit Treasures and two Spirit Roots, putting it on the same level as the Origin Spirit Realm. That was rather strange.
Either an expert had deliberately guided the Vast Sea Realm's origin essence to nurture these Spirit Treasures and Spirit Roots.
Or other Innate Treasures had been nurtured, but had never been discovered.
Before an Innate Spirit Treasure or Innate Spirit Root emerged into the world, it would be protected by