First Possession! Source of Rules!

Throughout Lin Yan's growth, the System had always played an extremely crucial role.

Relying on the System Opportunity Function, he had been able to avoid depending too heavily on luck while still finding precious treasure inheritances in the Cosmic Sea, such as the Panwang Mountain Inheritance, the Xuan Yuan Technique, and the Azure Jade All-Worlds Sword.

Relying on System Rewards for advancement, along with miraculous methods such as the Golden Framework and the Book of All Beings, had left him repeatedly amazed.

Perhaps it had not directly granted Lin Yan greater power, but it had brought him countless benefits, uncovered endless possibilities, and step by step established the heaven-defying foundation he possessed today!

So much so that although he was still only a True God, even the God King realm at the very pinnacle of the Origin Continent no longer seemed distant.

Perhaps the System's existence was no longer as critically important as before, but he still held considerable expectations for the System Rewards granted with each breakthrough in realm.

"Heavenly Demon Possession Method!"

The name alone left Lin Yan utterly baffled.

Before he could think further, he felt his soul suddenly shudder violently.

Deep within the Golden Vertical Eye, his Life Core, strands of black lines spread outward, intertwining with the soul that formed his Green Lotus Mind Aspect. The black lines continuously seeped into his soul, rapidly causing certain transformations.

This is somewhat similar to when I broke through to the Cosmic level and obtained Heavenly Demon Transformation. Lin Yan remained calm and swiftly reached a conclusion. It should be carrying out some kind of alteration to my soul.

Strictly speaking, Heavenly Demon Transformation was merely a Soul-type secret technique for early-stage cultivation, though it had once been of considerable help to Lin Yan.

Of course.

Its value