High-level martial arts: Contract cashback, invincible starting from the Zerg.

The Military Body Tempering Technique was created by Liu Xu, a powerful expert at the Hong level, hundreds of years ago in the Great Xia Dynasty.

It is a training method that significantly enhances the physical fitness of combatants by continuously absorbing Tia's energy in extreme environments.

The cultivation technique is divided into six levels and 40 layers.

The first three stages are for tempering the body with armor and weapons, while the last three stages are for tempering the body with divine weapons.

Liu Xu, a second-level Hong-rank expert, successfully broke through to the Hong-rank level because his physical attributes were greatly improved and strengthened after cultivating to the 32nd level of the fourth stage.

With the 100 million cultivation resources Chen Feng currently possesses, even if his talent is lacking, he can still forcefully advance to the third level of armor tempering by relying on these resources.

As the alloy gate of the quenching chamber is fully closed.

The tempering chamber where Chen Feng was located had isolated him from all external influences, leaving only Chen Feng's heavy breathing and the "buzzing" humming sound from the energy conduit.

The temperature inside the quenching chamber had been adjusted to an extreme threshold, and Chen Feng felt a slight stinging sensation.

That's because the rich Tia energy not only filled the environment where Chen Feng was, but also had extremely high activity and energy level. In an unstable state, individual Tia energy units had a 15% chance of self-destructing.

Even if it's just the self-destruction of a single unit of energy, a single Tia energy could generate enough force to tear the skin of an ordinary person.

However, Chen Feng's defensive capabilities have now reached the peak of the Earth Rank.

That's why I only felt a slight pain.

Chen Feng sat cross-legged in the center of the body tempering platform, the Azure Dragon Armor he had obtained from the soldier's body tempering technique faintly visible on his bare skin.

Whenever Tia's energy bursts forth, the pale silver patterns of the Azure Dragon Armor cover Chen Feng's skin like layers of armor plates, providing impeccable defense.

The first three stages of armor tempering strengthen the cultivator's flesh, bones, and muscles, giving them an outer layer of armor and laying the foundation for the subsequent divine weapon tempering.

Chen Feng began his ascent to the 25th level of the third layer of armor tempering.

With his eyes closed, he guided the free-floating Tia energy in the cabin into his body's meridians, following the incantation of the sergeant's body-strengthening technique.

Chen Feng could clearly feel that Tia's energy was no longer as easily absorbed by the body as before. The higher the level of the soldier's body tempering technique, the more Tia's energy resembled shards of iron with sharp edges.

It requires an extremely high level of physical energy to forcibly absorb them into the body.

Even so, every inch of flesh being altered brought Chen Feng excruciating pain.

Especially near the core of the Vajra, the intensity of the tearing and burning pain almost broke through Chen Feng's mental defenses.

"Hold on, if Liu Xu can do it, so can I," Chen Feng silently told himself.

Cold sweat dripped down Chen Feng's face, only to be instantly evaporated into white mist by the high temperature as it fell onto the tempering platform.

Chen Feng strictly followed the essential principles of the Soldier's Body Forging Technique, without using any auxiliary cultivation methods. Instead, he relied on the solid physical body he had built up through the Soldier's Body Forging Technique to forcefully squeeze the capacity of every inch of his meridians, gradually forcing Tia's energy into his body.

I don't know how much time has passed.

Chen Feng's skin gradually glowed with a pale blue light, and the silver patterns on his Azure Dragon Armor became denser and more textured.

Chen Feng finally sensed the opportunity to break through to the 25th level of Armor Tempering!

The moment the immense energy of Tia finally broke through the shackles of Chen Feng's physical talent and surged into Chen Feng's Vajra Core like a whale swallowing seawater.

Tia's energy, like oil being poured into a raging fire, continuously washed over the Vajra Core and every inch of Chen Feng's body. Even his heart gradually hardened like iron, and its beating rhythm became steady and powerful.

Each pulsation seemed to cause the Tia energy around him to tremble.

The energy spread along the blood vessels, surging towards the lungs, liver, gallbladder, spleen, and stomach. Every organ had to undergo the same tempering, and the pain that penetrated deep into the bone marrow was even greater than the sum of Chen Feng's previous armor tempering sessions.

Chen Feng almost fainted.

However, when Chen Feng thought of Liu Xu's feat of cultivating to the 32nd level of the fourth stage under even more extreme conditions, he picked up a military knife and cut his hand.

Although the pain of bleeding is not as noticeable as that.

But seeing the blood flowing from his hands, Chen Feng gritted his teeth and continued to guide Tia's energy.

I don't know how much time has passed.

On the tempering platform, Chen Feng's aura grew increasingly heavy, and the pale blue aura around him intensified.

However, Chen Feng's breathing gradually became longer and less heavy than at the beginning.

Although the body was still enduring excruciating pain, the resilient feeling emanating from the internal organs was becoming increasingly clear.

Chen Feng could even feel that his heart had become stronger and his lungs could hold more energy, so even after a long period of high-intensity combat, he would no longer easily become exhausted.

The next moment!!

Chen Feng shuddered violently, his muscles tensed uncontrollably, and the veins on his body bulged as if he had encountered an extremely dangerous creature.

Chen Feng knew that the Armor Tempering Technique had reached a critical moment.

He continued to forcefully guide more Tia energy into the Vajra core, and made Tia energy circulate continuously in the body, tempering the energy pathways of the entire body.

boom!!!

Chen Feng successfully completed the 25th level of armor tempering!

Immediately afterwards, a warm current spread from her internal organs throughout her body, instantly dispelling most of the excruciating pain, and Tia's energy absorption became much smoother.

Chen Feng slowly opened his eyes, a faint blue light flashing in them.

He raised his hand and clenched his fist, feeling that the strength in his limbs had not diminished due to long-term training, but had instead become more refined.

Every time he clenched his fist and exerted force, it was as if he was carrying the power of a storm.