Let you simulate life, but you change fate every time?!

[Your heaven-defying comprehension has successfully deduced the refining method of the Second-Turn Qi Concealing Gu upon perusing the Qi Concealment Technique!]

[Your heaven-defying comprehension has led you to understand the refining method of the Four-Turn Indestructible Golden Body Gu upon examining the Vajra Peak's Indestructible Golden Body Technique!]

As sounds of prompts from the Will of the Heavens echoed in Lu Yuan's ears, his experience in Gu refinement became ever deeper.

In using Gu, cultivating Gu, and refining Gu, any one of these aspects represents a profound and expansive field of study.

Many Gu cultivators exhaust their entire lives and may still not fully penetrate one of these paths.

Fortunately, Lu Yuan possessed heaven-defying comprehension, perpetually in a state of enlightenment, allowing him to grasp the essence of cultivation techniques with half the effort but twice the effect.

For him, comprehending a cultivation technique for a moment equaled others' several years of diligent cultivation!

Moreover, with the unwavering support of the Medicine Buddha Sect, Lu Yuan did not need to worry about the lack of Gu refining materials at all.

Half a month later.

In front of Lu Yuan floated a sphere of light emitting a faint glow, into which he was pouring a vast number of Heavenly Materials and Earthly Treasures as if they were a flowing stream.

Inside the sphere of light existed a semi-transparent Gu insect.

The Gu insect was only the size of a fingernail, and after absorbing a large number of Heavenly Materials and Earthly Treasures, its body became increasingly illusory and transparent, as if it were about to vanish from sight.

"The Second-Turn Qi Concealing Gu is about to refine; now's the moment!"

A brilliant light shone in Lu Yuan's eyes as he quickly took out an Invisible Grass and threw it into the sphere of light.

Instantly.

The sphere exploded with divine light, and a peculiar wave spread from its center in all directions.

Soon after, all presence fluctuations vanished into the unseen.

When the glow faded, there was nothing in front, and neither with the naked eye nor with Divine Thought could any trace of the Gu insect be detected!

Only when Lu Yuan activated the Eye of Truth could he see a transparent-bodied Gu insect quietly suspended a short distance ahead, eyes open, curiously surveying the unfamiliar surroundings.

"So this is the Qi Concealing Gu?"

Lu Yuan felt a joy in his heart.

The Second-Turn Qi Concealing Gu did not enhance combat power; its sole purpose lay in concealing one's presence to avoid being spied upon.

Even though Lu Yuan had the assistance of the Will of the Heavens to obscure destiny, it's always better to rely on oneself.

Especially given the extreme peril of this world, if accidents happened, even the Will of the Heavens might disconnect.

Thus Lu Yuan would never entrust his life entirely to others.

With this Qi Concealing Gu, Lu Yuan could henceforth freely use the Eye of Truth and other Gu insects without worrying about identity exposure.

With a mere thought, Lu Yuan absorbed the Qi Concealing Gu into his Dantian, and his entire presence transformed, making it such that even a Nascent Soul Strong Person could no longer see any flaw.

"The Indestructible Golden Body Gu is as high as a Fourth Transformation, requiring at least the Core Formation Stage to refine, but I can take this opportunity to co-refine the Jade Skin Gu and Qi and Blood Gu into a Third-Turn Vajra Gu."

Lu Yuan muttered to himself.

Gu insects are the essence of heaven and earth, carrying Law Dao Marks.

The Parasite Insect Race can devour each other, causing themselves to molt and evolve.

And Gu cultivators can also use the method of co-refining to refine lower-grade Gu insects containing the same Law into higher-grade Spirit Gu.

For example, the most common First-Turn Spirit Absorption Gu, when combined with a First-Turn Fireball Gu and supplemented with various materials, can be co-refined into a Second-Turn Fire Spirit Gu.

Also, an ordinary First-Turn Moonlight Gu, when paired with a First-Turn Wind Blade Gu, can be co-refined into a Second-Turn Moon Blade Gu!

The higher the grade of co-refined Gu insects and the more precious the Gu refining materials, the greater the potential of the refined Spirit Gu.

Just like when Lu Yuan previously refined the Second-Turn Spirit Absorption Gu, by co-refining the Innate Qi with a First-Turn Spirit Absorption Gu, he ultimately refined a unique Innate Spirit Gu!

"I already have the Gu formula for the Third-Turn Vajra Gu; I only need to gather some more Gu refining materials."

Lu Yuan immediately began the refining process.

A few days later.

A golden Gu insect resembling a beetle and only the size of a fingernail was quietly lying in Lu Yuan's Dantian.

Although the Gu insect was small, its surface shimmered with extremely brilliant gold light, like a blazing sun, significantly accelerating the circulation speed of Lu Yuan's Qi and blood.

This was the Third-Turn Vajra Gu!

"Let's first test the effect of this Vajra Gu." Lu Yuan attempted to activate the Gu insect.

The next second.

The Vajra Gu shone brightly, with a beam of golden light emerging from within, forming a thick hide-like golden membrane on Lu Yuan's body surface!

This golden membrane was indestructible, possessing terrifying defensive strength.

Based on Lu Yuan's estimation,

it appeared that even a cultivator newly entering the Core Formation Realm might not be able to breach this golden membrane's defense.

Yet the Vajra Gu's greatest function lay in instantly multiplying one's power by more than ten times!

Lu Yuan stepped lightly onto the martial practice grounds outside the cave.

"Boom!"

With a loud crash,

the entire practice field shattered into pieces, revealing web-like cracks.

The ground collapsed and broke apart, leaving only an abyssal pit where the arena for practicing Body Technique once stood!

"As expected of the Third-Turn Vajra Gu, using merely a tenth of its power, I can easily cleave mountains and split stones."

"If fully activated, it seems even a Foundation Establishment Perfection Cultivator could be instantly annihilated!"

Lu Yuan was very pleased with the effect of the Vajra Gu.

The Indestructible Golden Body Technique is a secret of the Vajra Lineage, and if cultivated to Perfection, one could contend against Nascent Soul cultivators with sheer flesh and blood.

If Lu Yuan in the future upgrades the Vajra Gu to a Four-Turn Indestructible Golden Body Gu, its power will surely be more terrifying!

"The Vajra Gu is unmatched in power, and in terms of cultivation techniques, I already have the Innate Spirit Gu. Next, I just need to refine the Refining God Gu and Thundercloud Gu."