In the back mountain, in a quiet and quiet room, Lu Yunxiao and Yun Yun stood upright.
This quiet room is deep into the mountain and is inaccessible to people. It was specially built by Yunlan Sect. It is the quietest place. It can be said to be very suitable for retreat.
In the vast sky outside the quiet room, there is also the spatial structure laid down by Qing Yanjing, which completely covers the world and adds an indestructible line of defense to the quiet room again.
With Qing Yanjing's half-step Dou Zun strength, the barrier she has set up is difficult for even Queen Medusa to break, so it can be said to be extremely safe.
With this, there is basically no need to worry that anyone will disturb Lu Yunxiao and Yun Yun's retreat.
Turning his eyes slightly, Lu Yunxiao looked at Yun Yun beside him, and put his right hand on her pretty face.
Gently stroking her tender face, Lu Yunxiao's eyes were gentle and he whispered: "Yun'er, we can start."
"Yeah." Yun Yun hummed, looking at Lu Yunxiao's handsome face with bright eyes, tenderness flashing in her eyes.
Lu Yunxiao smiled slightly, leaned over and kissed Yun Yun gently on her forehead.
"This retreat will definitely take a long time. When I'm done, I will always be with you. Just rest assured and break through. Don't think about anything else."
Lu Yunxiao said softly.
"Okay, but strange fire is dangerous after all, so you should be careful yourself."
Bone Spirit Cold Fire ranked high, with huge energy. It would definitely be much more difficult to refine than Qinglian Earth Core Fire, so Yun Yun couldn't help but remind her.
"Don't worry, I've awakened the fire element, no matter how powerful the bone spirit cold fire is, it can't hurt me."
Lu Yunxiao smiled lightly, his smile was calm and full of confidence.
Unless it is a super strange fire like the Pure Lotus Demonic Fire and the Void Swallowing Flame, which are transformed into living beings, other strange fires will not have much resistance when faced with the refining of his innate Li Fire.
Even if it is Pure Lotus Demon Fire and Void Swallowing Flame, as long as Lu Yunxiao's strength reaches a certain level and can withstand the energy impact, he can also forcibly refine them.
The strongest strange fire in Dou Qi Continent is the Emperor Yan, but the quality of the Xiantian Li Fire far exceeds that of the Emperor Yan, but it is still too young and its power is not obvious.
But even so, no fire in the entire continent can hurt him.
Even though he will be injured by fire attribute fighters, it is the energy that hurts him, not the flame itself.
To a certain extent, he is also immune to fire.
Therefore, for him, refining the bone spirit cold fire is not really dangerous, but it does take time. After all, the energy is too strong, and it is not comparable to Qinglian Earth Heart Fire.
"That's good." Yun Yun was naturally relieved after hearing Lu Yunxiao's answer.
"Then I'll start."
"Go." Lu Yunxiao waved his hand and said.
Yun Yun nodded, then suddenly came forward and kissed Lu Yunxiao gently on the lips.
Lu Yunxiao was stunned for a moment and looked at her in shock.
Yun Yun smiled tenderly, blooming a beautiful smile, turned slightly, and moved her lotus steps slightly, carrying a moving fragrance.
Yun Yun sat down cross-legged on a futon, poured out a pill, and stuffed it directly into her mouth.
After forming a seal with both hands, a huge suction force erupted from Yun Yun's body, and the surrounding wind attribute fighting energy rushed towards Yun Yun like a baby swallow in its arms.
The terrifying suction force gushed out directly from the cave, forming a huge funnel that almost crazily plundered the energy of the world.
However, blocked by Qing Yanjing's spatial structure, the outside world did not notice any of these movements.
The skills in Yun Yun's body also started to move rapidly, and she began to refine the power of the Po Zong Pill and the surging energy of heaven and earth.
Lu Yunxiao looked at her and saw that everything was on track, completely relieved.
Touching his lips with his finger, Lu Yunxiao showed a smile, with a hint of aftertaste in his expression.
Yun Yun's lips are extremely soft and fragrant, which makes people miss her.
"I really can't get enough of you." Lu Yunxiao muttered and glanced at Yun Yun again, a smile flashing in his eyes.
With light steps, Lu Yunxiao sat cross-legged on the futon opposite Yun Yun.
I was immersed in my mind, and with a thought, in the cyclone, the innate Lihuo surged rapidly, and directly "threw" the bone spirit cold fire originally stored in it.
Bone Spirit Lenghuo was suddenly thrown out, somewhat confused, wandering slowly outside the cyclone.
Lu Yunxiao controlled his mind, and countless innate Lihuo were like robbers, directly carrying the Bone Spirit Cold Fire and heading towards Lu Yunxiao's meridians.
The Elemental Meridian Kung Fu began to operate, and the Elemental Meridian Dou Qi also followed one after another, taking the Bone Spirit Cold Fire to do the Great Zhoutian Movement, and began the refining journey.
Throughout the whole process, Bone Spirit Lenghuo showed no resistance at all, just like a girl who accepted her fate and let others do whatever she wanted.
Innate Lihuo is still powerful. Although its power is not too outstanding, its extremely high quality and the pressure of the flames make Bone Spirit Lenghuo dare not resist at all.
Of course, I can't resist.
Under the suppression of Xiantian Lihuo, Bone Spirit Cold Fire also cannot exert much power.
One thing comes down to another, nothing more than this.
When Xiantian Lihuo becomes powerful, it will be able to suppress all fires in the world. This is no joke.
As the bone spirit cold fire began to be refined, Lu Yunxiao slowly closed his eyes.
…
In this process, two months passed slowly.
"Whoosh!"
Qi energy fluctuated, clothes and robes flew around, and the aura on Lu Yunxiao's body trembled violently and began to rise steadily.
The strong wind roared in the air, making a whining sound, and the terrifying pressure radiated out in all directions with Lu Yunxiao as the center.
"boom!"
There was a muffled sound in his body, and Lu Yunxiao's power suddenly increased to a higher level, becoming much stronger.
"boom!"
There was another muffled sound, and Lu Yunxiao's power rose to another level again.
It is obvious that in this short period of time, Lu Yunxiao's cultivation level has broken through two levels in succession.
However, the improvement in momentum did not stop there, but continued to move forward.
There was another muffled sound, and Lu Yunxiao's strength rose to a higher level again.
The momentum was still rising, but Lu Yunxiao suddenly formed a hand seal and pressed it down forcefully.
At the same time, a burst of light erupted from Lu Yunxiao's dantian, and the skyrocketing momentum suddenly stopped. Instead, a terrifying energy began to gather in his dantian and grew rapidly.
Lu Yunxiao's face was expressionless, and there was no trace of panic. The fingerprints in his hands continued to change, and the energy fluctuations in his dantian became more and more intense.
In the cyclone, next to the round and bright Dou Jing, a forest-white diamond-shaped crystal was rapidly growing in size, and waves of pure energy like a tide were pouring into it.
In just a moment, this rhombus-shaped crystal, which was originally just like a bean, had become as big as a pigeon egg.