The Sea of Knowledge was so vast, its aura so intense, yet it was completely sealed off on the other side of the Rift, without the slightest leak.
This layer was what stood in the way.
Lu Yuan took a deep breath and tried to touch the barrier with his Forbidden Studies perception.
Gently.
Like extending a finger to touch a sheet of thin paper.
The moment he touched it, Lu Yuan's expression changed.
That was not paper.
It was a wall.
His perception was bounced back.
Like trying to push a mountain with one hand.
It was not that the mountain resisted you. You simply were not worth its consideration.
It could not be shaken.
Lu Yuan tried a second time.
The result was the same.
A third time.
His perception could not even remain on the barrier's surface for more than a second.
This thing was not "very hard."
It was "impossible."
At least, it was impossible with his current methods.
Lu Yuan frowned.
Forcing it open was definitely not an option.
Leaving aside whether he could shake this barrier at all, if he tore it open... no, he would not even need to tear it open. As long as he made an uncontrollable opening... the aura of the Sea of Knowledge would pour in. At this concentration, forget the North Textile District—even half of Bronze City would be in trouble.
This was not on the same level as that thing sealed within the Tower of Erudition's Main Tower.
That had merely been an "outflow."
This was... the sea itself.
Just as Lu Yuan was at a loss, Gray-White Text appeared at the edge of his vision.
``` [Target detected: Knowledge Wall... an "absolute" barrier separating reality from the Sea of Knowledge... but difficult to guard against Forbidden