Xiao Fei had spent decades toiling within the spatial realm, finally making some headway in his ability to strike the demonic seeds parasitic within his body with lightning.
However, such operations were akin to killing a thousand enemies while sacrificing eight hundred of his own. For every sliver of the demonic seed he managed to obliterate, he required several days of recuperation to recover.
After successfully testing the method on himself, Xiao Fei decided to begin clearing the demonic seeds from Zhu Yu and Huang Feifei.
This method could only wear down the demonic seeds bit by bit, requiring a considerable amount of time.
While recuperating, Xiao Fei summoned Huang Feifei, planning to start with her.
"Young Master, you sent for me?"
Affected by the demonic seed, Huang Feifei's emotions were clearly erratic. Her speech was somewhat flirtatious, and her attire had become much bolder than before, even revealing her fair legs.
Xiao Fei could only silently chant, "See no evil!"
"Mhm, I plan to start removing the demonic seed from your body."
"Oh, alright! What should I do? Please instruct me, this servant will not disobey."
Huang Feifei acted obediently, casting a provocative glance at Xiao Fei.
Xiao Fei could only sigh inwardly. Huang Feifei was becoming more deeply influenced by the demonic seed. She had never been like this before; it was all his fault for getting her involved.
"Place one of your hands on this jade plate."
Huang Feifei complied and placed her hand on it. Soon, a large red light cluster appeared on the jade plate.
This was a magical artifact Xiao Fei had refined specifically for testing demonic seeds after consulting numerous texts.
While it possessed no combat power, it could detect whether a cultivator harbored a parasitic demonic seed and, through the jade plate, determine the seed's size.
The demonic seed currently parasitic within Huang Feifei had grown to a size exceeding Xiao Fei's own.
It was likely that in another year or two, it would completely replace Huang Feifei.
"Alright, you can lie down now!"
"Do I need to take off my clothes?"
"No!"
Huang Feifei lay down as instructed, a hint of anticipation in her heart.
A lightning arc, like a slithering snake, appeared in Xiao Fei's hand and burrowed into Huang Feifei's chest.
Shortly after, Huang Feifei began to tremble and convulse, her fists clenched tightly, her eyes rolling back.
When Xiao Fei treated himself, the lightning directly acted upon his primordial spirit. Now, treating Huang Feifei required penetrating her physical body to reach her soul, making it slightly more arduous and the experience more painful.
Under the guidance of his divine sense, the lightning arc penetrated through her thick chest, consuming nearly a third of its energy before reaching her primordial spirit. Upon finding the demonic seed within the primordial spirit, another third of the energy was depleted.
He then manipulated this wisp of divine lightning within the primordial spirit to mutually consume the demonic seed until the lightning was completely exhausted.
At this point, Xiao Fei was drenched in sweat. Huang Feifei, lying on the jade bed, was completely soaked in sweat beneath her.
This treatment had caused considerable damage to Huang Feifei's body. She was now weak and listless, unable to even lift a finger.
Xiao Fei took out a stabilizing and tonifying pill, pried open Huang Feifei's lips, and placed the pill inside.
Huang Feifei's eyes were hazy at this moment, allowing Xiao Fei to act as he pleased.
After this treatment, the demonic seed within Huang Feifei had shrunk by a tiny bit. Although the progress was not rapid, it was an absolute good omen.
After sending Huang Feifei away, Xiao Fei summoned Zhu Yu and subjected him to a similar lightning therapy, leaving him thoroughly seared.
In the days that followed, Xiao Fei took turns administering lightning therapy to himself, Zhu Yu, and Huang Feifei.
Xiao Fei was a diligent learner and summarizer. Throughout the treatment process, he continuously reviewed his experiences, improved his methods, and enhanced the treatment's effectiveness.
Concurrently, he used leaves from the Wood Spirit Fruit Tree as the primary ingredient to develop a pill that could aid the body in recovering from weakness.
Previously, one treatment required seven days of recovery. After taking the pill, he only needed three to four days to recover, allowing him to proceed with the next treatment, effectively doubling his efficiency.
Thus, another two years passed.
Within the spatial realm, a divine lightning, as agile as a swimming fish, moved between Xiao Fei's fingers, as if it possessed a life of its own.
Through these years of arduous practice, his understanding of the Primordial Divine Lightning had deepened, surpassing the comprehension of its founder in certain aspects.
Now, within his chest cavity, the demonic seed had been reduced to a black speck the size of a soybean.
Xiao Fei took a deep breath, preparing himself for the torment of lightning, and directed the wisp of divine lightning towards his chest cavity.
Under his control, the divine lightning rapidly traversed his primordial spirit, doing its utmost to avoid causing any harm.
Upon approaching the demonic seed, the divine lightning immediately dispersed like a net, enveloping the seed.
The demonic seed seemed to be scorched by intense flames, emitting waves of black smoke.
After a long while, the demonic seed within his chest cavity completely vanished. A golden divine lightning, as fine as a single strand of hair, emerged from his chest and landed on Xiao Fei's hand.
The Primordial Divine Lightning was a highly unstable substance. Originally, each wisp of divine lightning would completely dissipate.
However, after completely eradicating the demonic seed this time, this wisp of divine lightning seemed to have undergone a qualitative change. It appeared to have gained a sliver of sentience and could maintain this state indefinitely.
Xiao Fei examined it several times and, finding no abnormalities, absorbed it back into his body.
This wisp of divine lightning, as fine as a hair, entered his Dantian and immediately settled beside his Golden Core, circling it playfully.
Finally clearing a major hidden danger within his body brought Xiao Fei a sense of relief.
A few days later, while treating Huang Feifei's demonic seed, he summoned the wisp of divine lightning that had been circling his Golden Core, supplemented it with additional divine lightning energy, and increased its volume by more than tenfold.
He discovered that by integrating that sliver of golden divine lightning, his control became much more adept, and the potency of his attacks against the demonic seed seemed to have increased.
The effectiveness of this treatment was significantly greater than any previous attempt.
Furthermore, after the treatment, the divine lightning, as fine as a hair, returned to his hand once more.
It seemed this wisp of divine lightning had indeed gained sentience and could now be called a Lightning Spirit.
Many objects in nature, due to certain unique circumstances, could develop sentience, such as Water Spirits, Fire Spirits, and so forth.
With the assistance of the Lightning Spirit, Xiao Fei successfully cleared the demonic seeds from Zhu Yu and Huang Feifei within half a year.
His Lightning Spirit, it seemed, grew stronger with each demonic seed it helped eliminate, its volume now having tripled in thickness.
The grown Lightning Spirit further enhanced the efficiency of clearing demonic seeds from within the body.