Jiang Liu looked at the core of the Four Symbols Illusion Formation before him, and his expression immediately turned grave.
He truly had not expected that this Four Symbols Illusion Formation, which served as the passage to the Ancient Battlefield,
would have its formation core forged from the bones and blood of Human Race warriors.
When he saw the formation core before him, refined from the bones and blood of Human Race warriors, Jiang Liu did not even know what to feel.
Wave after wave of intense resentment radiated from the formation core, violently assailing Jiang Liu's divine soul.
The emergence of this resentment should have been closely related to the warriors having their bones and blood refined.
Because judging from the intensity of this resentment, the bones and blood of these warriors had most likely been forcibly refined while they were still alive.
That was why so much resentment had accumulated around the core of the Four Symbols Illusion Formation.
Unlike the Four Divine Beasts whose divine souls had been directly extracted, they had not even known what was happening when they died.
Jiang Liu also did not know whether the Holy Master of the Human Realm had some purpose in making these warriors die such miserable deaths.
Or perhaps their resentment had been necessary to open the passage to the Ancient Battlefield.
However, even though the Holy Master of the Human Realm had treated the Human Race warriors with extreme cruelty,
Jiang Liu still felt deeply impressed by the Holy Master of the Human Realm's methods.
If he had not found the formation core, he would never have noticed that such dense resentment existed here.
In other words, the Holy Master of the Human Realm's method of concealing the aura was extraordinarily impressive, far beyond what he could