Although Lin Zheyu's face remained composed, he felt somewhat puzzled inside.

'If personal belongings work, then using wild beast blood should be possible too.'

'Could it be that changing the target requires some kind of special method?' Lin Zheyu wondered to himself.

...

Cui Haihong returned to the sect less than five days ago, before heading out again for a mission.

Martial Artists above Transforming Force have many tasks and affairs to handle.

Even those in the Bone Marrow Refining Realm often need to go out on missions, but Lin Zheyu had just joined the sect and was granted leisure with Huang Baizhong's permission.

However, Huang Baizhong only gave him three years to focus on cultivation, only needing to go on missions when manpower was scarce.

After three years, he would need to perform tasks himself to earn contribution points.

Night fell.

Lin Zheyu left the sect, changed his appearance, and arrived at the black market.

This black market has extremely strict scrutiny; entry requires one hundred silver each time, and only Martial Artists above Bone Marrow Refining Realm can enter.

The higher the black market's requirements, the more rare treasures it contains.

Lin Zheyu found his Blood Burning Saber Skill here.

"Are there any new special cultivation techniques today?"

Lin Zheyu approached the stall selling cultivation techniques and inquired with the vendor.

He's already acquired standard Main Cultivation True Skill.

Lin Zheyu plans to look for unique cultivation techniques, such as the Blood Burning Saber Skill, which poses significant side effects to others but ignores them with his Source Power.

"What type are you looking for?" the vendor asked.

"Something akin to Eternal Night Sleep Secret Skill, Blood Burning Saber Skill, Bone Shrinking Skill, Nine Revolutions Locking Essence Skill, etc., those with strange abilities but significant side effects."

Lin Zheyu said.

He found Bone Shrinking Skill in the black market as well.

However, this technique is peculiar; once cultivated, bones and muscles undergo special changes, affecting the Martial Artist's physique.

Martial Artists practicing this skill have deformed bones, unsuitable for cultivation.

Therefore, Lin Zheyu only bought it for knowledge, not for cultivation.

"Yes."

"These are some special secret techniques; you can take a look."

The vendor nodded, took out a booklet, flipped to the back, and handed it over.

Lin Zheyu carefully read it and indeed found many interesting cultivation techniques.

He purchased two intriguing techniques and moved to the next stall.

Lin Zheyu often buys cultivation techniques for knowledge rather than practice, expanding his understanding of the human body.

After purchasing five interesting techniques, Lin Zheyu arrived at the previously arranged herbal vendor's stall.

"Are the herbs I requested prepared?" Lin Zheyu asked casually.

Last time, he searched extensively through several black markets to find enough Cold Bone Grass and White Frost Flower.

But the Erosion Phoenix Profound Leaf was elusive.

Eventually, through extensive inquiries, he located this herbal vendor selling Erosion Phoenix Profound Leaf.

Lin Zheyu placed a deposit of fifty thousand silver, agreeing to pick it up today.

"Ready, ready."

The vendor said with a cheerful smile.

After receiving the remaining payment from Lin Zheyu, his smile grew even brighter.

"Here are the Erosion Phoenix Profound Leaves you wanted."

The vendor took out a bag half as tall as a person, opened it, revealing it filled with Erosion Phoenix Profound Leaves, with a rich herbal aroma.

After checking and confirming no issues, Lin Zheyu nodded in satisfaction.

"Thank you." Lin Zheyu expressed gratitude.

"You're welcome."

"If you need anything else, don't forget to find me. No matter how rare the treasure herbs, I can help you procure them."

The vendor said with a smile.

"Alright."

Lin Zheyu nodded, turned around, and left with the Erosion Phoenix Profound Leaves.

The herbs are ready. Next, he could start his enhancement.

[Heavenly Dao rewards diligence]

Name: Lin Zheyu

Source Power: 14

Skills:

Turtle Breath True Skill (Sixth Layer 0%)

Blood Burning Saber Skill (Third Layer 100%)

Sacred Inference Spirit Skill (Second Layer 0%)

Primordial Infinite True Skill (First Layer 63%)

"With fourteen units of Source Power, I wonder which layer Primordial Infinite True Skill can be enhanced to." Lin Zheyu muttered to himself.

Upon returning to the sect, he broke through limits twice, accumulating fourteen units of Source Power.

He estimated that mastering Primordial Infinite True Skill to Marrow Refining Realm Perfection requires approximately twenty units.

For Lin Zheyu, that's not much, achievable within less than a month.

...