Junior sister, I really need to control you.

Polaris Island.

Li Yinsheng sat in front of the Black Demon Cauldron, watching the Yakshas formed from the medicinal liquid within fight against the demonic energy of the Black Demon Cauldron.

He just hadn't expected that the evil-looking Yaksha would be so brave.

Faced with the demonic tentacles that lunged at it, it swung its sharp claws and easily tore them apart.

Moreover, after severing the tentacles, it will grab them and swallow them, refining them in an instant.

Although most of the demonic energy that was severed would immediately retract into the Black Demon Cauldron, seemingly to regroup, 30-40% of the demonic energy still could not escape being devoured by the Yaksha.

As time dragged on, the Yaksha absorbed a considerable amount of demonic energy, growing several sizes larger and appearing even more ferocious and majestic.

To Li Yinsheng's surprise, despite consuming so much demonic energy, the Yaksha's aura remained perfectly pure, showing no signs of being tainted by the demonic energy.

This was somewhat beyond his comprehension.

One of the main characteristics of demonic energy is its corrosive and corrupting nature, like a bone-deep infection that often causes great headaches.

The Black Demon Cauldron was originally a pill-making cauldron of extremely high quality, but it was still corrupted by demonic energy to this extent, which shows how troublesome it was.

But this yaksha, though fierce-looking, seemed to be the nemesis of demonic energy, completely unaffected by it. Li Yinsheng couldn't help but ponder this.

"Yakshas are one of the guardian deities of Buddhism. It is said that some Buddhist ghost immortals who wish to walk the path of immortals choose to transform into Yaksha gods."

"And Buddhist supernatural powers are quite professional and suitable for suppressing demonic energy."

"Could it be that this Yaksha is not just a mere figurehead, but is actually connected to a real Yaksha?"

Thinking of this, Li Yinsheng's eyes lit up.

As a renowned guardian deity in Buddhism, the Yaksha possesses considerable combat power.

If there were a pill that could transform into a Yaksha for use in combat, that would be quite suitable.

He patiently waited for the Yaksha to clash with the demonic energy within the Black Demon Cauldron.

As the Yaksha grew stronger, the demonic energy that was cut down had no time to escape and was sucked into its belly.

In the end, the Yaksha stopped cutting off the demonic tentacles and instead used both hands to grab them, stuffing them into his mouth and swallowing them like noodles.

In just over a month, the deep-rooted demonic energy within the Black Demon Cauldron was completely wiped out by the Yaksha.

Most importantly, the Black Demon Cauldron itself was not damaged in the slightest. Unfortunately, the Black Demon Cauldron seemed to have been tainted for far too long, and it had completely lost its spirituality. Even if the demonic energy was removed, the extinguished spirituality could not be restored.

"What a pity..."

Li Yinsheng shook his head, pondering that he would have to have the small world deduce how to restore the Black Demon Cauldron in the future.

In its current state, the Black Demon Cauldron is a pill-making cauldron of considerable quality. If it could be truly restored, its value might even surpass that of many other magical treasures.

But what he needs to do now is to finalize the Yaksha Pill.

He looked up at the sky, where thick, ominous clouds had appeared out of nowhere, covering an area of ​​thousands of miles.

Although the area was not large, the terrifying power it contained was the most powerful Li Yinsheng had ever seen.

Li Yinsheng formed a hand seal, and the Thunder Tempering Elixir Technique landed on the Yaksha. The Black Demon Cauldron opened, and the Yaksha leaped out.

Its original height of only a few feet swelled with the wind, transforming into a ferocious body a thousand feet tall.

If the original Yaksha was only ferocious, now it also has a touch of majesty.

Wielding a halberd, wielding it with the speed of the wind, he roared to the sky at the first bolt of lightning that struck down, cleaving it in two. As the first bolt of lightning was absorbed by him, the Yaksha's size increased again, and several more arcs of electricity appeared around his body.

"Hmm, as expected of a pill specifically made for combat, its combat power is on a completely different level from other pills."

Watching Yaksha casually swing his halberd, easily shattering and absorbing seven bolts of lightning, Li Yinsheng suddenly had a bold idea.

There are usually only nine lightning bolts in a row. Once all nine are struck, the tribulation will dissipate.

Looking at the final burst of lightning still gathering, Li Yinsheng pointed with both fingers: "Go up!"

The Yaksha spread its wings and flapped them powerfully, instantly appearing high in the sky and disappearing into the core of the tribulation clouds.

The ninth bolt of lightning, which was still brewing, seemed to have been greatly provoked. It surged from all directions, its power ten times more terrifying than the previous eight combined, and it seemed to want to completely destroy the Yaksha God.

If it were a normal elixir, it would be impossible to resist it.

But with an additional halberd in his hand, the Yaksha could thrust and sweep left and right, and slash up and down, yet he remained standing like a reef amidst the sea of ​​lightning.

As it devoured more and more thunderbolts, it swung its halberd faster and faster, tearing apart space wherever the halberd's blade passed.

"Not bad. Under the control of the Thunder Tempering Pill Technique, its power is enough to threaten even a Celestial Immortal." Li Yinsheng was quite satisfied.

"Roar—" The Yaksha suddenly roared, even drowning out the thunder in the sky.

He immediately grew three heads and six arms. He still had two halberds in his hands, but the four extra hands held a longsword, a scimitar, a heavy mace, and a cone-shaped hammer.

Wielding the six weapons, they strolled leisurely through the sea of ​​lightning, devouring the thunderbolts with abandon.

After a long while, the endless sea of ​​lightning suddenly stopped, and all the tribulation clouds disappeared in an instant, leaving a clear sky for thousands of miles.

But the Yaksha's movements as he wielded his weapon did not slow down at all; on the contrary, they became even more rapid.

Although the surrounding spatial rifts were slowly healing, they couldn't keep up with the speed at which they were torn apart.

Li Yinsheng maintained the Thunder Tempering Pill Technique and could sense that after the Yaksha devoured a massive amount of pill lightning, the power within its body had accumulated to the level of a barrier.

Suddenly, the yaksha, who had been wildly brandishing his weapon, stopped and went from extreme motion to extreme stillness.

His originally fierce and menacing face became as calm as still water, like an old monk in deep meditation.

A faint golden light emerged from the Yaksha, spreading throughout his body. Enveloped in the golden light, a look of compassion and majesty appeared on the Yaksha's ferocious face.

But the golden light came quickly and went even faster, like a dream or a bubble, existing for only a moment before it vanished.

The fierce and violent aura emanating from the Yaksha swept back in.

"Was that... a Vajra guardian deity of Buddhism?" Li Yinsheng looked up at the scene, lost in thought.

As guardian deities, Vajra is far superior to Yaksha, and is almost the highest-ranking guardian deity in Buddhism.

He just didn't expect that the Yaksha could also advance to the Vajra level.

"Unfortunately, Vajra is, after all, a guardian deity of Buddhism. Without the Buddha-nature or Buddhist cultivation behind him, he probably cannot achieve enlightenment."

"Although this Yaksha has accumulated enough foundation, it is essentially a pill. How can it possess any Buddhist nature? Naturally, it cannot advance to become a Vajra."

Li Yinsheng shook his head and waved his hand to recall the Yaksha.

The Yaksha guardian deity, whose size had swelled to ten thousand feet, retracted its three heads and six arms, transformed in mid-air into a pitch-black pellet the size of a thumb, spun around, and landed in Li Yinsheng's palm.

"Even in its current state, it is enough to contend with ordinary Earth Immortals."

Li Yinsheng stroked his chin: "If we can elevate it to the Vajra level, it would probably be an extremely powerful force among Earth Immortals."

"How can one compensate for the lack of Buddha-nature required for breakthrough and advancement?"

"Should I find rare and precious Buddhist materials to fuse into it, or should I cultivate a Buddhist technique myself?" Li Yinsheng muttered to himself.

The Five Poisons Scripture he cultivated is no longer up to par. Even the effects of the poison in assisting alchemy are no longer sufficient for high-level medicinal treasures. It is indeed time to replace it.

Startled by the commotion caused by the Yaksha God, Shen Xin, who had just arrived, heard Li Yinsheng's mutterings and her eyes widened in surprise.