How can I have a heart of a demonic god in my body?!

The process of concocting the "Heavenly Moon Blood Marrow" is extremely complex, and Chen Yu dared not lose focus for even a moment.

Should he fail in concocting it, the loss would be heartbreaking even for Chen Yu.

Thus, he activated the array of his cave dwelling, aiming to avoid any disturbances.

Three days later.

Chen Yu tossed the Moon Spirit Ore Mother and Blood King Marrow into a large cauldron.

Whoosh!

With a wave of his hand, the Blood Crystal Flame emerged and coiled beneath the cauldron, emitting intense heat.

"The final step, refine it with True Fire Spirit Flame for forty-nine days!"

Chen Yu covered the ancient cauldron.

The Blood Crystal Flame had a flame spirit, so it could refine the concoction on its own.

Chen Yu moved to the side and began secluded cultivation, practicing the Heavenly Demon Secret Pattern Record.

He realized that when he primarily cultivated the Secret Pattern Demon Body, the progress was normal, but the cultivation technique's speed had slowed down considerably.

"It seems that as my realm advances, the Heavenly Demon Secret Pattern Record is a bit lacking in follow-up strength."

In fact, at the late Sky Sea Realm level, progress in cultivation tends to slow down, and each advancement becomes exceedingly difficult.

Having a better cultivation technique could somewhat make up for this shortcoming.

At the moment, Chen Yu indeed had a better option, the Six Elements Returning to Heaven Technique, a formidable technique left behind by Emperor Xuanming, which is hard to surpass even in the Blood Sea Realm.

However, the Heavenly Demon Secret Pattern Record Chen Yu practiced fused both demon and body paths.

If he directly switched to the Six Elements Returning to Heaven Technique, it would not perfectly integrate with the body path technique in the Heavenly Demon Secret Pattern Record.

In other words, switching to the Six Elements Returning to Heaven Technique would enhance his cultivation progress, but would make the body path more difficult.

For this reason, Chen Yu had not immediately switched cultivation techniques.

While Chen Yu was pondering, a call came from outside the cave dwelling.

"Young Master Yu, this is Zheng Xiujing..."

"Why is that woman looking for me?"

Chen Yu felt perplexed and chose not to respond.

The Heavenly Moon Blood Marrow still needed forty-nine days to succeed, and he did not want such a treasure to be known to others.

Outside the cave dwelling.

Zheng Xiujing called out a few times, but the barrier outside Chen Yu's cave remained unchanged.

"In the past, no man dared to ignore me like this."

Zheng Xiujing said calmly.

In the past, it was always other men from the Blood Race eagerly visiting her, and she would be the one rejecting them.

But regarding Chen Yu's indifference, Zheng Xiujing was not very displeased; instead, she showed a faint smile: "He is so different."

Without lingering much longer, Zheng Xiujing soon left.

Yet in the days that followed, she would come here every few days.

Inside the cave dwelling, Chen Yu felt a bit speechless.

"Could it be that this woman is still holding on to a grudge because she suffered at my hands back then?"

Chen Yu thought this woman was too petty and vindictive.

However, now he was the Young Ancestor, and no one dared to intrude on his cultivation cave; he could stay secluded for years without leaving.

Moreover, he was not afraid of the woman; if it weren't for her father being a Blood Clan King, Chen Yu wouldn't have spared Zheng Xiujing easily in the Blood Vault back then.

"Only five days left!"

With eager anticipation, Chen Yu glanced at the ancient cauldron in the center of the hall.

The Heavenly Moon Blood Marrow was a formula the Red Flame King acquired from an unknown source.

The effects of this blood marrow were incredibly astonishing; not only could it improve physique and promote life levels, its main function was to greatly enhance the spiritual body qualification.

Additionally, the description stated that if the quality of the materials was exceptional or the consumer's qualifications were special, the Heavenly Moon Blood Marrow might produce other unique effects.

Chen Yu's spiritual body qualifications had already reached the level of High Grade Spirit Body, and further enhancement could position his cultivation qualifications among the paragons of the Great Yu Realm.

In the early stages of the cultivation journey, those with inferior spiritual body qualifications might catch up to the more qualified through opportunities and effort.

But in the later stages, this gap would only widen.

Even with multiple opportunities, if Chen Yu's cultivation qualifications did not improve, he might not have achieved his current level.

"Master, the time has come."

Five days later, the flame spirit shouted, and the fire under the cauldron suddenly weakened.

It had been tirelessly working day and night for forty-nine days, finally relieved now.

Meanwhile, the flame spirit was also highly anticipating the Heavenly Moon Blood Marrow.

With a wave of his hand, Chen Yu uncovered the cauldron lid.

Within the ancient cauldron, a mixture of silver and red liquid floated, emitting an unusual fragrance.

Even the flame spirit of the Blood Crystal Flame trembled at this moment, feeling a surge of desire.

"Master, quickly consume this treasure, or it will surely attract others' attention."

The flame spirit immediately advised.

It had already surrendered to Chen Yu, yet some greedy feelings still arose.

The Heavenly Moon Blood Marrow, to an extent, can be considered a treasure of the Blood Path.

This was the territory of the Blood Race; no doubt, other powerful figures from the Blood Race might sense its fragrance.

"Okay!"

Only now did Chen Yu truly appreciate the preciousness of the Heavenly Moon Blood Marrow.

Its efficacy was tantamount to participating in a Food God Feast, though certainly not as beneficial as an upper-tier seat, at best comparable to a middle-tier opportunity.

Yet this was incredibly remarkable.

Chen Yu opened his mouth and inhaled, drawing the silver-red liquid into his mouth.

The moment he swallowed, Chen Yu felt as if the Heavenly Moon Blood Marrow had fused with his being, completely undetectable, only able to sense the transformation of his body.

Chen Yu felt as though his blood, flesh, bones, and organs were receiving cleansing and purification.

He quietly sat down, feeling the wondrous effects of the Heavenly Moon Blood Marrow.

Chen Yu felt as if every cell in his body was jubilantly rejoicing, in absolute pleasure.

He immediately engaged his cultivation technique and practiced the Secret Pattern Demon Body, realizing the progress was far beyond normal.

Meanwhile.

Outside the cave dwelling.

"Huh? What was that scent just now, so fragrant and captivating."

Zheng Xiujing opened her eyes.

As a Blood Brewing Master, she is extremely sensitive to the scent of blood and determined that the aroma of blood came from Chen Yu's abode.

"Is he brewing the blood brew? Such an alluring aroma, he is too...mysterious and unpredictable!"

Zheng Xiujing's eyes revealed a look of fascination.

Not far from Chen Yu's abode, in another cave dwelling.

Whoosh!

A blood-colored head silently appeared atop the palace, and the entire world seemed to freeze with silence.

"What was that aura just now? It actually made the blood in my body burn."

He murmured softly, leaped out, and disappeared under the moonlight.

...

One day later.

The aura of Chen Yu's physique grew increasingly stronger, with significant progress in the Secret Pattern Demon Body.

His life level was now very close to the peak of late Sky Sea Realm.

Under such circumstances, the cultivation of the Secret Pattern Demon Body would proceed more smoothly.

Chen Yu felt he had almost completely absorbed the effects of the Heavenly Moon Blood Marrow.

He was quite eager to know how much his spiritual body aptitude had improved.

But just at that moment.

Buzz buzz!

A faint blood-colored glow appeared all over him, emitting a deep and mysterious blood-red radiance.

Chen Yu discovered that not only his surface looked this way, but his internal bones and veins were also similarly peculiar.

"What's going on? The formula doesn't mention this?"

Chen Yu felt a bit surprised.

"Master, your spiritual body aptitude has undergone a mutation."

The Flame Spirit beside him shouted loudly.

"Spiritual body aptitude mutation?"

Chen Yu showed a startled expression.

There are different levels of spiritual body aptitude, and generally, the best is the top-level spiritual body.

But besides the top-level spiritual body, there are some legendary spiritual bodies, and some mutant spiritual bodies.

Previously, Chen Yu encountered a few geniuses with mutant spiritual body aptitude.

However, those geniuses' mutant spiritual body aptitude were all innate, while Chen Yu's is a postnatal mutation.

"Do not worry, Master, most spiritual body aptitude mutations are due to special treasures of Heaven and Earth, and those mutations are often beneficial, with very few being useless or even detrimental."

The Flame Spirit continued.

After hearing this, Chen Yu realized that worrying was futile.

Luckily, this anomaly soon ended, and everything returned to normal.

"I wonder to what extent my spiritual body aptitude has reached and what mutation occurred?"

Chen Yu was impatient to find out.

He immediately took out a crystal ball from the storage space, which serves to test spiritual body aptitude.

The crystal ball has twelve round protrusions on it.

Chen Yu held the crystal ball in his hands, and shortly after, it lit up on its own, releasing a layer of light red aura, growing progressively stronger.

The protrusions on the crystal ball lit up one after another, reaching the final one.

"All lit up, top-level spiritual body!"

Chen Yu's breath quickened slightly.

However, the light on the last protrusion of the crystal ball was somewhat dim.

Chen Yu's spiritual body aptitude barely met the standard of a top-level spiritual body.

"Top-level spiritual body, with this my spiritual body aptitude has reached the level of top talents in the Great Yu Realm."

Chen Yu showed a look of joy.

Though the last protrusion on the crystal ball wasn't completely lit, which left Chen Yu slightly disappointed.

But it seemed his spiritual body aptitude had also undergone a mutation; however, he didn't know what kind of mutation it was.

To get the result, Chen Yu attempted to cultivate in seclusion.

Sure enough, after the spiritual body aptitude enhancement, his body's compatibility with Heaven and Earth Primordial Qi greatly increased, speeding up his cultivation significantly, providing him with a sense of relief.

However, regarding the mutation, he did not reach any conclusion.

"I can only search related ancient texts for answers."

Chen Yu stood up.

Just as he stepped out of the abode, he halted.

"Young Master Yu, you've finally come out."

Zheng Xiujing smiled.

Chen Yu felt her demeanor was exactly the same as before, except more smile on her face.

"Why are you looking for me?"

Chen Yu asked expressionlessly.

Although he had been in the abode these days, he was aware that Master Zheng often came to his abode.

"Regarding the previous matter, I apologize deeply, my father sent me to be your attendant as an apology."

Zheng Xiujing showed an uncharacteristic meekness.

"What?"

Chen Yu was taken aback, he previously thought she was here to cause trouble.

"No, with her personality, how could she willingly become my attendant and follow my orders, is there a hidden agenda?"

Chen Yu felt something was off.

However, since the other party offered herself, let's see what Master Zheng has up her sleeve.

"Fine, from today onwards, you are the attendant of this Young Ancestor."

Chen Yu said coldly, his face showing ruthless authority.