World Advancement, Immortal Realm, Inner Layer!

After gathering the materials needed for the world's advancement, Su Yang left the Galactic Restricted Zone.

Activating the Sword Intent at the Taiyi True Immortal realm quietly, a crack appeared in the void before him.

This was a void passage, and on the other side of the passage was the location of the Daxia World.

Stepping into it, when Su Yang appeared again, he was back in the Daxia World.

Upon returning to the Daxia World, Su Yang took out the three necessary materials for the world's upgrade.

Void Essence, Primary Rule Foundation Stone, Low-grade Celestial Spring.

The Void Essence merged into the void of the Daxia World.

The Primary Rule Foundation Stone integrated into the interior of the Daxia World.

After the fusion was complete, beings within the Daxia World could comprehend the primary rules, thereby breaking through to the Celestial Realm.

This is also the difference between a Minor World and a Major World.