After the destruction of the Immortal Realm, I took in the fallen fairy.

It's the Five Elements Immortal Venerable again, it's the Five Elements Immortal Venerable again...

Hey, can't you, this immortal venerable one, do something serious for once?

What does it mean to invent stockings in a cultivation world?

If he could, Lin Heng would love to grab the Five Elements Immortal Venerable by the collar and ask him what kind of immortal he was cultivating, and how he could even cultivate black silk.

However, he also knew that most people probably only knew the name of the Five Source Immortal Venerable.

Even Yun Qinghe and Mu Tinglan, who came from a major sect like Yunling Sect, had only heard their sect leader mention it before.

"How about it, Young Master Lin? If you're interested, I'll give it to you!"

"Keep it for yourself."

Lin Heng calmly pushed away the Five Source Immortal Venerable's treasure.

"Holy crap, you're not interested in this? Take a look, the texture is truly unique, I guarantee you'll..."

"Really, you don't need to."

Seeing Lin Heng's helpless expression, Xia Feng paused for a moment, then gave him a thumbs up and said, "Young Master Lin, you're truly a saint."

That's not it.

Lin Heng glanced at the stockings that Xia Feng had put away.

The reason he didn't want it was simply because, being an expert in this field, he felt it wasn't quite right after just one glance.

In terms of size, it is clearly not large enough to accommodate the plumpness of the Water Spirit Root.

For wood-elemental roots, this will affect their smooth texture...

Whether it's "penetrating to the core" or "entering the heart," it falls short.

"However, Young Master Lin, I overheard some news when I went to the tents of the Western Region demons."

Xia Feng said eagerly, "Those demons said that their Sand Fox Lady is very grateful to you for allowing them to stay here, so she plans to set up a trading post in a tent."

Lin Heng raised an eyebrow: "The stock exchange?"

"right!"

Xia Feng immediately nodded: "Moreover, Lady Sand Fox's subordinates also said that we can not only exchange spirit stones for their Western Region specialties, but we can even exchange grain for spirit stones!"

"That Sand Fox Lady... is actually quite perceptive?"

Upon hearing this news, Lin Heng couldn't help but touch his chin with some curiosity.

Although he deliberately extorted 100 spirit stones from that Western Region demon today, he wanted to make his stance clear to Lady Sand Fox.

If you want supplies from the slums, you can exchange them for spirit stones.

The fact that Madam Sand Fox took the initiative to set up this exchange was clearly to fulfill Lin Heng's hint to her.

But why would she do that?

Lin Heng wasn't stupid enough to think that the richest old widow in the Western Regions would deliberately try to rip him off.

Generally speaking, when someone actively tries to satisfy another person, that person tends to receive more satisfaction in return.

"How about it, Young Master Lin? Shall we go check it out after they set up the exchange?"

At this moment, Xia Feng rubbed his hands together curiously.

"Go ahead, I'm not in a hurry."

Lin Heng shook his head.

Lin Heng did not intend to rush over until he figured out the old widow's true purpose.

And if Lin Heng wasn't mistaken, the old widow should have sent someone to invite him...

"Alright, I'll go see what other treasures those Western Region demons have!"

Xia Feng, with his large belly sticking out, ran westward.

Lin Heng opened his mouth slightly, but didn't even have time to kindly remind him.

Will bringing a pair of stockings to the store cause any misunderstandings...?

"Hello!"

Suddenly, a voice came from behind Lin Heng.

Turning around, I was surprised to see Song Jingyu with her red hair.

Seeing that she was staring intently at him, Lin Heng simply said, "I don't call it feeding."

"Anyway...anyway, it's calling you!"

Song Jingyu bit her lip, looking conflicted, but finally, she walked over and resolutely said to Lin Heng, "I've thought it through. I want to be your immortal slave!"

"Um?"

This sentence not only stunned Lin Heng, but also caught Yun Qinghe, who was standing next to him, off guard.

How did she suddenly come to this understanding?

Then, Song Jingyu's tone softened considerably, and she asked softly, "But... won't forming the Slave Spirit Seal hurt a lot?"

"Whether it hurts or not is up to you. As long as you trust your master, you'll be fine."

At this moment, Yun Qinghe answered for Lin Heng from the side.

After all, when she first formed the Slave Spirit Seal, her inherent pride and defiance caused her pain for a long time...

"Then...you can do it."

As she spoke, Song Jingyu took the initiative to walk into the house, and then tremblingly lifted up the red brocade robe behind her.

"Be prepared, or the slave spirit seal will activate if you disobey it in the slightest."

Regardless, Lin Heng still reminded her of something before forming the slave spirit seal.

The young girl, whose age is even smaller than his shoe size, might not be able to withstand the effects of the Slave Spirit Seal.

"Okay! I'm ready!"

Song Jingyu dared not look behind her and could only stare at the wall in front of her.

Lin Heng glanced at Yun Qinghe, who nodded in understanding. She walked in front of Song Jingyu and said calmly, "If you do as Master says, it definitely won't hurt."

"Okay, I understand, sister... Eh?!"

Suddenly, she felt a warmth on her back where her waist was.

A tingling, numb sensation then spread throughout my body.

At this moment, in Lin Heng's eyes, it wasn't just that Song Jingyu's delicate back had the mark of the slave spirit.

A new chapter has also been turned in the Immortal Slave Manual:

[Bound to Immortal Slave: Song Jingyu, a prodigy with a fire spirit root.]

[Spiritual Root Purity: 50%]

[Realm Level: Late Stage of Spiritual Being (Already Declining)]

Loyalty: 1

[Celestial Slave Title: Blazing Jade Saintess]

She is the rule successor of the Originfire Sect. Although her innate rebelliousness gives even the Five Origin Immortals a headache, her passionate heart will never disappoint her master's expectations...

[Title Talent: Blazing Jade Spirit Fire, a powerful flame capable of incinerating all demonic creatures and possessing a refining effect.]

[The slave master has acquired a fire-elemental immortal slave, unlocking the structure: Blazing Camp, which provides temporary spiritual energy to all fire-elemental immortal slaves.]

Finally, we have an offensive fairy slave.

But what truly made Lin Heng's heart race was the newly unlocked Blazing Camp!

Provide spiritual energy temporarily to all fire-elemental immortal servants...

He knew very well what this meant.

Because he learned from the power of the array's rules that the Fiery Camp was not like the Immortal Spring, which only worked when an Immortal Slave was bound to the Immortal Slave Manual...

So...

In his slums, he had more than thirty fairy slaves!

Even if there are only a few fire spirit root immortal slaves among them, it is enough to form a small-scale fighting force.

In case he ever encounters troubles that even the Spirit Suppressing Tower formation and the forest guards can't solve, he won't have to rush off to take the fairy servant for a bath like before...

At this moment, Song Jingyu turned her head to look at Lin Heng behind her, pursed her lips, and said, "Feed..."

"Hey, stop!"

Yun Qinghe subconsciously offered a reminder, but ultimately it was too late.

"Are you done yet...? Hmm? Sister, what do you want?"

She paused mid-sentence, looking at Yun Qinghe with a puzzled expression.

"what?"

Yun Qinghe was also stunned.

Logically speaking, the slave spirit mark should have activated after she addressed her master in such a disrespectful and impolite way.

Yun Qinghe had suffered like this when she was first brought home by Lin Heng.

But why...?

The slave spirit seal on Song Jingyu's back didn't react at all?