Before swallowing the Nine Nether Wind Flame, Xiao Yan had only just entered the initial stage of a Five-star Dou Zun. Yet after two days, his aura had actually risen to the peak of a Five-star Dou Zun.
"Keep it up, Brother Xiao Yan! You're about to succeed!"
Sensing the changes in Xiao Yan's aura, Xun Er, who stood guard nearby, immediately revealed an expression of immense delight.
Within Xiao Yan's body, the medicinal power of the blood-red pill had basically been completely exhausted. As a result, the thick blood scabs lining the walls of his meridians had lost their regenerative effect. At this moment, he was relying entirely on his own strength to withstand the scorching of the Heavenly Flame.
Fortunately, the Nine Nether Wind Flame had now almost been completely refined by him. Moreover, over these past two days, his meridians and flesh had greatly improved their tolerance for such high temperatures. Thus, after the blood scabs completely vanished, he did not suffer much pain.
Wisps of black flames began to spread across Xiao Yan's body. Like tiny vines, they wound around him, using a strange method of tempering to refine his skin, muscles, and even bones.
Under the tempering of those black flames, Xiao Yan's previously fair skin gradually took on a bronze hue. It instead made his body seem even more brimming with strength.
"Phew!"
About another day passed before Xiao Yan slowly opened his eyes and exhaled. His breath was extremely scorching, sweeping outward like a blazing hurricane.
At the same time, a muffled boom suddenly sounded from within Xiao Yan's body. His strength had finally entered the level of a Six-star Dou Zun.
"Brother Xiao Yan, congratulations on breaking through again!"
Seeing Xiao Yan rise to his feet, Xun Er became extremely excited and