Rubern's potential completely erupted, and Adrian found it somewhat challenging to defend against the onslaught. However, the current Adrian was far beyond his previous self.

Adrian's inherent strength was already vigorous, reaching the pinnacle of level seven. Now, it was purer and more robust, making it even more difficult for Rubern to defeat him.

Moreover, the current situation clearly favored Adrian.

"Rubern, that's enough," Adrian uttered.

Then, he slightly retracted his hand. Countless streams of energy swept into Rubern's body, piercing through it.

"Ah!"

Rubern's facial muscles twitched, and he screamed in pain. The sensation of his body being pierced felt like having an iron rod thrust through his mouth and coming out from below. It was a pain, as if his heart was being torn apart.

As a result of this blow, Rubern's energy dissipated entirely, and all his strength turned into nothingness.

"My strength, my strength!" Rubern rolled on the ground like a mad beast. "Adrian