Published: March 3, 2025
With the significant enhancement of the Azure Yang Devil Fire, a smile appeared on Liu Yu's face as he murmured to himself.
From second-grade to third-grade, the extent of the increase in power was uncertain, as there were no accurate assessment standards in the cultivating immortality world at present.
However, through a remarkably close connection, he could clearly sense that it should be between two to three times the power before the upgrade.
Moreover, this was not the limit!
An increased upper limit meant that the devil fire could continue to consume fuel and grow, thus its subsequent power could constantly increase.
"I wonder how much fuel is needed for the transition from third to fourth grade?"
With this thought flashing through his mind, Liu Yu followed the connection with the Azure Yang Devil Fire to sense the basic requirements for another upgrade.
But the next moment, his eyes widened!
"120,000"
"It actually requires 120,000 degrees of fuel, this..."
A look of shock flashed in Liu Yu's eyes.
The transition from third to fourth grade was a significant leap, and he had long anticipated that the required fuel would be considerable.
Yet needing a full 120,000 was indeed beyond his expectations.
According to the calculation that burning a golden core mid-stage cultivator yields 400 degrees of fuel, he would need as many as 300 individuals.
What does 300 golden cores even mean?
The Yuan Yang Sect only had around thirty golden core cultivators, and even accounting for subordinate families and small forces, it would not exceed sixty people.
When combined, the Five Great Sects of Chu State, including family cultivators and loose cultivators, would not exceed four hundred.
Furthermore, those who reached the golden core mid-stage would definitely not exceed half of that number.
This meant that for the Azure Yang Devil Fire to reach the precondition for upgrading to fourth grade, it would have to completely consume all the golden core cultivators in Chu State.
Is this even possible?
Liu Yu's smile stiffened, and he shook his head slightly.
"Let’s take it step by step."
"Choosing golden core cultivators and third-tier demonic cultivators as targets is definitely unrealistic."
"However, there are so many creatures below golden core that the options are vast; worst case, I can..."
He sighed lightly, murmuring to himself.
There were more creatures below the third tier, which Liu Yu could easily crush, allowing for quick harvesting.
As long as he seized the right opportunity, it was still possible to achieve his goal.
"Conversely, the fact that so much fuel is required for the upgrade indirectly indicates that the power after the upgrade is greater than expected?!"
Liu Yu thought silently, gazing at the Azure Yang Devil Fire slowly burning in his palm, and then focused his mind.
In the next moment, the deep blue flames blurred for a moment and instantly transformed into pure white.
A somewhat familiar force radiated from the center of the devil fire, rippling outward.
The power of desire!
"This level is still somewhat weaker than the original 'Heart Flame of Impermanence'."
"However, it's not bad; as the devil fire advances and enhances, the corresponding effects will continue to strengthen."
"This is an enormous advantage that other spiritual fires cannot compare to, and it's the significance of the 'Nine Transformations of Demonic Fire'."
"Other spiritual fires cannot possess several characteristics at the same time."
With this thought, Liu Yu focused his mind again.
In the next moment, the pure white flames transformed once more, changing to a bloodthirsty pale red, and then to a vibrant light blue.
Finally, they returned to the ominous deep blue.
"Not bad."
Overall, Liu Yu was very satisfied with this upgrade.
With the increasing number of characteristics added to the devil fire, as long as the speed of advancement could keep up, the effects would surely become even more significant.
This diversified his methods of engagement, making it difficult for opponents to defend.