Grey and the Pseudo-sovereign were in a tug of war, he was going to absorb more essence. The Pseudo-sovereign was the clear favorite since it was his essence to begin with, but Grey was robbing him of that essence.
If he was told something like this was possible, he would never believe it. As a matter of fact, he would attack the person who said such words. But now, he was seeing it with his own eyes. What was shocking was the fact that Grey, someone that was on the verge of failing his breakthrough was about to get to the Sovereign Plane thanks to his sudden breakthrough. It was surreal.
'How's this possible?!'
He exclaimed internally, but there was nothing he could do. He was sharing his essence with Grey, and the annoying part is that Grey was absorbing more than he was.
If this continued, then Grey would definitely take more than he would, and also put a stop to his supposed break through to the Sovereign Plane.