The Nirvana Fruit had been refined over several months, so it had naturally been fully absorbed.
Yet because the Nirvana Fruit had cleansed his demon body, Nie Li now refined World Vital Energy far more smoothly than before, as though his bloodline had been elevated.
Even simply absorbing World Vital Energy, he could faintly sense his strength constantly growing. Spurred by this sensation, Nie Li began staying on the island for long periods without going out.
Nie Li's eyelids suddenly trembled slightly before snapping open as he looked into the distance.
A faint, almost imperceptible resonance came from a thousand li away.
"Someone actually dared to refine my essence blood!"
In an instant, Nie Li understood where this sensation came from, and fury immediately spread through him.
Boom!
The entire island shuddered violently. The other demon beasts instinctively turned to look, and upon seeing the Demon King rise into the sky, they immediately lowered their bodies in reverence.
Two streams of air burst from Nie Li's nostrils. His four limbs lightly paddled through the air, and he transformed into a rainbow streak that vanished from where he stood.
A thousand li away, Chen Fei was following the resonance in search of its source when he suddenly sensed it grow slightly stronger.
Resonance had always been a two-way matter. It was merely that demon beasts had rougher control over their divine souls, so they sensed it later.
But as the distance between them closed, even with weak divine soul control, they could already perceive a thing or two.
A faint smile appeared on Chen Fei's face as he flew toward the direction where the resonance had strengthened.
The two flew toward one another, and the thousand-li distance between them rapidly shrank.
Less than a few moments later, Chen Fei vaguely sensed