For the Profound Immortal Cave Heaven, this is considered the most important matter.
Within the cave world, enormous stars appeared, gigantic suns and Taiyin stars formed a massive galaxy.
At least millions of stars were nurtured.
Each star was infused with a large amount of immovable material, greatly increasing the mass of the stars.
Undoubtedly, each star could support the survival of tens of billions of humans at the very least.
Just imagine how enormous these stars must be.
The increase in the mass of these stars also caused a significant growth in the weight of the cave world.
This made the cave world extremely heavy.
If the Profound Immortal Cave Heaven were summoned now, even the ordinary Golden Immortal's cave would be unable to withstand it, being instantly shattered into pieces.
In terms of density alone, the cave in his body is at least ten times that of an ordinary Golden Immortal's cave.
"Luckily, I own a large number of Five Elements Immortal Fruits."
