Cultivating immortality begins with formations.

When the Xuanhuo Formation is in operation, a tide of flames will ignite within the formation.

It is naturally not suitable to set up in Jiulingfang Market.

Otherwise, if the house were to catch fire in an instant, attracting a large number of cultivators, the situation would become uncontrollable.

Gu Qingyao had already chosen a spot, and after putting on her black robe again, the two left the market and arrived at a cave in the Jiuling Mountains.

"I've observed this place for months. There are no demonic beasts or spiritual materials near this cave, and it's quite secluded with few people around."

Lu Yuan only knew her name was Gu Qingyao.

She didn't mention her background, so I didn't ask any further questions.

"Fairy Gu, it's not that I don't trust you, it's just that the Nine Ridges Mountains are fraught with danger, and no one knows whether tomorrow or an accident will come first..."

"What I mean is, what if... I only have the fourth level of Qi Refining cultivation."

Upon hearing this, Gu Qingyao's expression remained calm and composed: "With my Xiaoxue and your formation, those below the Foundation Establishment stage are not difficult to deal with..."

As she spoke, she frowned slightly, gave him a deep look, and seemed to understand Lu Yuan's thoughts. She continued, "If a Foundation Establishment cultivator comes, you can leave after activating the formation. I will not blame you no matter what."

"What do you take me for...?"

Upon hearing this, Lu Yuan's face immediately filled with indignation.

"When I asked you to deal with Zhang Su before, Fairy Gu agreed without hesitation. And when I was in danger, she bravely came to my rescue. I am deeply grateful for this kindness..."

"If Fairy Gu ever encounters danger in the future, I, Lu, will risk my life to protect her."

Lu Yuan finished speaking.

He looked directly at Gu Qingyao with a gaze that seemed to indicate a wounded heart: "If we truly encounter an opponent we cannot defeat, we will share the hardships of life and the grave of death."

"..."

"you……"

Gu Qingyao was stunned on the spot, and the lingering coldness on her icy face vanished in an instant.

Instead, a very faint blush appeared, creeping up her snow-white neck to the tips of her ears.

Like plum blossoms suddenly blooming in the dead of winter.

Gu Qingyao's beautiful eyes shone brightly, and her usually cold voice trembled almost imperceptibly: "Don't talk nonsense, you and I... aren't that familiar."

Lu Yuan did not answer.

He simply turned around and sat cross-legged in the cave, taking out the materials needed to set up the Xuanhuo Array. In the end, he couldn't help but reveal a smile on his lips.

"Women in the cultivation world are quite easy to fool."

Since he didn't swear an oath, whether or not he abides by what he just said has no effect whatsoever.

If nothing happens and everyone is happy, that would be the best outcome. Leaving these few words behind might just keep things firmly under control.

If we do encounter bad people, we will do our best to help them within our power.

But if things are beyond our control, we can only say, "It's better to die than to die," because everyone only has one life.

The object of one's life can be one's children, parents, or even close friends of many years, but it can never be a woman one has only known for a few days.

Gu Qingyao was naturally unaware of these complex thoughts.

From the moment she heard Lu Yuan's words, she was completely thrown into disarray.

Remembering her aunt's instructions, she was told that if she heard a man's sweet talk, she should not hesitate to immediately draw her sword and stab him through the hole.

But she couldn't tell whether what Lu Yuan was saying at that moment was just sweet talk or not.

Fortunately, after years of hard work, Gu Qingyao's mind gradually calmed down, and the icy coldness returned to her face.

Looking at Lu Yuan's retreating figure, she said calmly, "That day will never come."

The next two days.

Lu Yuan extracted the array patterns related to the Mysterious Fire Technique from the Five Elements Mist Array and officially began setting up the array.

This is a very basic formation; it can't even be considered a first-order formation.

In the hands of a master array maker, it's like any cultivator who, lacking a fire source in the wild, can conjure a fireball by hand.

Ultimately, the fireball that is shaped the roundest and the fastest will be the most powerful.

It depends on the array master's proficiency with array patterns.

As for proficiency, thirty years of accumulated experience is enough for Lu Yuan to complete the Xuanhuo Array pattern in a very short time.

Although I had never tried it before.

However, he had set up the Five Elements Mist Array many times, and he was also very familiar with the related fire-type array patterns.

Therefore, there is no pressure at all, and the process of drawing the array patterns is extremely relaxed.

In just one and a half days, Lu Yuan completed the drawing of the Xuanhuo Array patterns using the blood of fire-type demon beasts.

According to Gu Qingyao's requirements for the power of the Xuanhuo Formation.

Lu Yuan left a position on the core of the Xuanhuo Array where the core of a fire-type demon beast would be embedded. At the very edge of the array, three spirit stones were to be placed to maintain the operation of the array.

Barring unforeseen circumstances, three spirit stones should be enough to sustain the formation for half a month.

According to Gu Qingyao, the onset of the cold poison would last for about a month.

Therefore, Lu Yuan had to stay by the side and remove the stone dust when the spirit stone turned into stone powder, and replace it with a new spirit stone.

Not only that.

The cold poison flared up, and the extreme cold spread rapidly. If the array patterns were to solidify, Lu Yuan would need to deal with it immediately.

In short, this is not an easy job.

"Give me the fire-type demon core."

Lu Yuan turned to look at Gu Qingyao and opened his palm in front of her.

During the time he was setting up the formation, Gu Qingyao would sometimes furrow her brows and observe, and sometimes she would use a tree branch to trace the formation patterns on the ground.

However, after drawing one array pattern and then comparing it, it cannot be said that they are completely unrelated, since they are all lines.

Then, she moved gracefully and casually wiped it away with the sole of her shoe.

Lu Yuan saw all of this.

He was unaware of Gu Qingyao's hidden thoughts, but he felt that this woman in front of him, with her aloof temperament and stunning beauty, might not be entirely as she seemed inside.

It's just a matter of experience and environment.

She placed a fist-sized, fiery red crystal in Lu Yuan's palm, her tone now cool and aloof: "This is the core of a second-tier demonic beast, the Lava Lizard. I will give it to you after this matter is resolved."

Another despicable rich woman...

"Thank you, Fairy Gu."

Lu Yuan didn't like being a kept man, but he couldn't resist the temptation.

The mini version of the Xuanhuo Array, which has not yet reached the next level, uses the core of a second-tier demon beast as its core. It's like using a dragon-slaying sword to cut sugarcane. Even after it's used up, it'll probably still be practically brand new.

However, with a second-tier demon core, the power of the Xuanhuo Formation is barely enough to be considered a first-tier formation.

Lu Yuan embedded the demon core into the core of the Xuanhuo Array, and then generously took out three spirit stones, made a hand seal, and activated the Xuanhuo Array.

moment.

The blazing fire surged into the sky, but it seemed to be imprisoned by an invisible wall, burning only within a few feet of the Xuanhuo Array.

Waves of fire surged toward the very center of the formation.

Lu Yuan swallowed a fire-avoiding pill that he had prepared beforehand, stepped into the formation, stared at the rolling flames, and checked the nodes of the formation's patterns.

After confirming several times that there were no flaws, he then cast a spell to shut down the Xuanhuo Array.

Stepping out of the Xuanhuo Formation, Lu Yuan smiled slightly at Gu Qingyao: "It's ready, please enter the formation, fairy."