Da Xuan Martial Saint

Blistering heat.

When Chen Mu swallowed the Bone Tempering Pill, it instantly dissolved and transformed into a hot stream that surged through his entire body, permeating deep into his bones and adding a layer of warmth that flowed within.

Then there was the silver-gray sticky medicinal paste applied all over his body, whose heat was comparable to that of boiling oil. But more crucially, after being layered on, the medicinal power penetrated crazily into his body, like needles piercing through every pore.

Through the skin membrane.

Across the muscles.

Finally reaching the bones.

The anticipated pain of piercing needles did not exist; instead, it was a dull feeling, like a hammer striking compacted material, started emanating from every inch of his bones.

Even with Chen Mu's current endurance, he was momentarily unable to make a sound and could only forcefully bear it.

"This is Bone Tempering..."

Indeed, this medicinal power was also affecting the skin membrane and muscles, but the already maximally tempered skin and muscles, under the impact of this medicinal power, stayed immovable like steel bodies, unaffected.

This is why at least Perfection in the Tendon Changing Realm is necessary before one can attempt Bone Tempering, as merely Tendon Changing Major Achievement's membranes cannot endure the shock of Bone Tempering medicinal power and would get directly damaged.

Only with Skin Toughening, Body Refinement, and Tendon Changing all at Perfection, can one withstand the erosion of the Bone Tempering medicinal power.

Moreover.

The process of resistance still consumes some Qi-Blood.

This is also why the more plentiful a Martial Artist's Qi-Blood, the less difficult it is to step into the Bone Tempering Realm.

In Chen Mu's case, with his foundation at the extreme limits of the Three Realms, the impact of the Bone Tempering prescription on his muscles and skin membrane was almost negligible, hardly consuming any Qi-Blood. All of his Qi-Blood was mobilized, focusing between his bones, cooperating with the medicinal power to temper and forge every inch of his bones.

Finally.

About a quarter of an hour later.

The pain that spanned his entire body gradually subsided.

Chen Mu took a deep breath, feeling the heat that still filled his body, and following the moves of Tiger Demon Bone Tempering Fist, he suddenly threw a punch, creating a gust of wind in the practice room.

With the punch thrown, he staggered, the discomfort from all over his body nearly causing him to fall, but he eventually steadied himself. Then, with a composed demeanor, he threw a second punch.

This time he staggered again.

The third punch,

The fourth punch,

...

With each punch thrown, Chen Mu's stance gradually stabilized, no longer shaky or staggering, each punch firmer than the last, until every punch whipped up a strong wind, turning him into a hunting Tiger Demon, swiping his claws, adeptly and ferociously maneuvering through the forest.

So completed one full set of Tiger Demon Bone Tempering Fist, Chen Mu didn't stop but started over, performing the second and third set continually, faster and more fiercely with each repetition.

Just like this.

Until several hours passed and the sky outside had completely darkened, with the Silent Chamber turning pitch black, Chen Mu finally slowly ceased his movements.

His eyes shone brightly in the darkness, as even a pitch-black, lightless Silent Chamber appeared clearly visible to him, barely affecting his vision at all.

"Whew..."

Chen Mu slowly exhaled.

He felt all the heat within his bones subside, and his ample Qi-Blood had also been consumed a lot by the medicinal forging and practice of the fist technique, requiring meat replenishment for recovery.

He did not rush to leave the Silent Chamber.

Upon a thought, Chen Mu summoned the system panel.

Soon, he found a few new lines of text appearing at the bottom of the panel.

[Tiger Demon Bone Tempering Technique (0%)

Experience: 11 points]

"It feels like my bone strength has significantly increased, and my Qi-Blood limit has expanded, but still not even one percent..." Chen Mu looked at the data on the system panel, shaking his head slightly.

Previously during Tendon Changing, not all his enhancements relied on the system panel; the power of the medicines he absorbed while training was effective too, and once, he saw a one percent increase on the system panel right after training.

With his foundation at the extreme limits of the Three Realms, Tiger and Leopard Thunder Sound, his muscles harmonizing,

the threshold for Bone Tempering should essentially be nonexistent for him, normally achieving one percent directly through Bone Tempering should be expected, but it seemed he had slightly overestimated himself.

However, Bone Tempering looked not much different from Tendon Changing after all, being able to enhance was good enough.

Upon a thought, Chen Mu directly attempted to enhance.

As expected, just like during Tendon Changing, consuming ten experience points led to a change.

[Tiger Demon Bone Tempering Technique (1%)

Experience: 1 point]

Buzz!

Rich medicinal power exploded within the bones around his body, instantly enveloping him, causing Chen Mu to be unable to keep standing, staggering a couple of steps and sitting down on the ground, soon unable to maintain even a sitting position, he was forced to lie back.

It felt as if in an instant, his bones withstood a forging intensity multiple times stronger than before; normally, even Bone Tempering Pills would not protect the marrow from being damaged, but the power of the system panel was still inconceivable, forcibly controlling the medicinal power to stay on the surface of the bones without affecting the fragile inner marrow at all.

Just like this.

Almost a quarter of an hour went by quickly.

When Chen Mu sat up again, slightly staggering as he stood up, he felt a more pronounced change in his bones compared to before. After swinging Tiger Demon Bone Tempering Fist for a while and adapting to the changes in his body, he looked at an iron plate set behind him, picked it up from the ground, raised his middle finger, and knocked it upwards with his knuckle.