Zhu Siming pondered for a moment, frowned, and said, "Although Duan Yiyun's qualifications are amazing, and she has cultivated to the peak of pure bones so quickly, she can't use it for two purposes, and mobilize her essence and blood while running the sword cultivation technique." ”

Lu Kun said: "Don't worry, in the past few years, I have comprehended a new secret technique, which can use my essence blood as a medium to control the blood in other people's bodies, and the essence blood in Xiao Evian's body will be controlled by me." ”

When Zhu Siming heard this, he finally understood Lu Kun's train of thought.

This sword cultivation technique, only a cultivator of metallic mana can urge this secret technique, and it must also be used against the sword weapon.

Lu Kun wants to learn from it the method of cultivating the artifact of the flesh body, in addition to observing the casting process, he also has to test its influence on the spiritual root of the instrument, and the two must be carried out at the same time.

In this way, Evian Duan is the most suitable candidate.

Duan Yiyun has the pinnacle of metallic physical mana in the early stage of foundation building, and he only needs to slightly modify the spiritual root of the sternum weapon to transform it into the most basic sword weapon, so that he can perform the sword cultivation technique.

At this time, the sternum is not only a spiritual root, but also a sword weapon.

Lu Kun can comprehend the uniqueness of the sword cultivation technique while manipulating the essence and blood in Duan Evian's body, looking for a way to cultivate the flesh and body.

......

After a while, the ban on the secret room opened, and four people walked in.

The first two are Huang Xiaoyun and Zhao Xueer.

Huang Xiaoyun entered the Bone Treasure Stage with the method of sword intent condensation, even if he reined in the mana of his body, his whole body was still filled with an extremely sharp aura, just like a sharp sword that could not be concealed.

Zhao Xue'er's breath was stable, and there was not a trace of cold breath leaking out, and among the people present, only Lu Kun could feel the breath of two mature magic weapons in her forearm.

The latter two are Duan Yiyun and Li Qianfeng, they are very nervous when they see so many elders at once, they are all seniors above the Yudan stage, and the cultivation of the pavilion master has reached the Yuan infant stage.

"Duan Yiyun, Li Qianfeng, I've seen the pavilion master and all the uncles!"

Lu Kun nodded slightly, first looked at Li Qianfeng, threw over a jade slip and said, "Qianfeng, your idea is very good, I have a new summary of the alchemy technique, you take it to study first." ”

Li Qianfeng took the jade slip, swept his senses, and couldn't help but be stunned: "This is ...... The method of demonic refining?"

Lu Kun nodded: "Yes, according to my inference, it is most appropriate to use the magic treasure as your right arm." ”

As he spoke, he also threw Yu Xuan a copy of the Qi Alchemy Technique, and ordered: "Yu Xuan, you and Qianfeng will comprehend this Demon Dao refining method together, I will go to you later, go down first." ”

Although Yu Xuan and Li Qianfeng had a lot of doubts in their hearts, they unconditionally believed in Lu Kun's order, and the two of them retreated and left the secret room.

Lu Kun looked at Duan Yiyun again and told her what she was going to do, and after the little girl listened, her face was full of excitement, obviously extremely excited to participate in the research of the machine spirit root.

Next, Lu Kun and Huang Xiaoyun instructed Duan Yiyun on the technique of raising swords, and on the other side, Zhu Siming also discussed with Qin Yushu the refining method of Duan Yiyun's sternum.

The bone material of the bone quenching period is extremely high, and it is more than enough to refine the Instrument Spirit Root, and the only trouble is how to bless the Imperial Sword Miniature Circle on the Instrument Spirit Root.

Fortunately, Zhu Siming once portrayed Huang Xiaoyun's sternum, but it was just a little troublesome.

......

Three days later, Duan Yiyun was lying flat on the platform of the secret room, wearing a black inner armor, and a hole was opened in the middle of the inner armor, revealing the white skin in the middle of his chest.

Duan Yiyun was very clear about her task, she only needed to treat the sternum weapon spirit root as a sword weapon and perform the sword cultivation technique, and she didn't have to worry about anything else.

The Pavilion Master will manipulate her blood in the process, and comprehend the method of cultivating the physical body, with this secret method, the last step of the mortal martial artist fusion device spirit root will basically be successful!

......

Lu Kun stood not far away, with three bottles of jade bottles of churning qi and blood suspended in his hand, which were Duan Yiyun's essence blood.

Physical cultivation disciples have the habit of storing essence blood, and if they have not entered the blood coagulation period, their combat endurance is slightly poor, and storing essence blood can ensure the endurance of their battles.

"Are you ready?"

Duan Yiyun froze and said, "Pavilion Master, you're ready." ”

As soon as she finished speaking, the little girl felt an invisible force acting on her chest, delicately peeling off her sternum as if she were peeling off a cocoon.

Then a drop of silver blood the size of a thumb sank into the gap in her chest, and a silvery film of light appeared on the bones and flesh, protecting her flesh.

The pain of the sternum pulling out was nothing to Duan Yiyun, and her attention was all in mid-air.

The calcined sternum, as well as the refining spells cast by Zhu Siming and Qin Yushu.

But after observing for a while, Duan Yiyun's eyes showed a look of frustration, and she couldn't understand the refining method of the Instrument Spirit Root at all.

Whether it is the technique of the Great Five Elements or the depiction of the miniature magic circle, it is not something that the monks of the foundation building period can comprehend.

Time passed......

Unlike Monk Fang, Duan Yiyun's sternum refining was very fast, and after only half a day, a sternum weapon spirit root surrounded by pale golden veins was revealed in front of everyone's eyes.

After completing the integration of Jin Dan, Zhu Siming controlled the huge divine consciousness again, and carefully carved a delicate and delicate sword array in the spare space, and a trace of sharp aura emanated from the sternum.

Lu Kun said in a deep voice: "Evian, use the skill of sword raising." ”

Duan Yiyun's eyes froze, and her mana surged rapidly, and a pale golden aura shot out from her body, sinking into the sternum above her.

The sternum immediately trembled, and the sharp aura and this spiritual light violently stirred, as if fighting in the sternum, but after a while, the sternum gradually stabilized, and a pale golden point of light lit up inside.

Lu Kun's eyes flashed, and he observed carefully.

The first step in the art of cultivating a sword is to condense the mana seed in the sword, and this seed is the bridge between the sharp breath of the sword itself and the metallic mana.

The key to the condensation of mana seeds is to find the balance between the sword weapon and the metallic mana.

Duan Yiyun's body has the body of Yuan Jin, and the metallic mana she cultivates is very special, and the sword weapon is made of her own bones, and the condensation of mana seeds is extremely easy, and there is almost no hindrance.

After the pale golden mana seed was completely formed, Lu Kun said: "Evian, return the sternum to its place and run the method of pregnancy and nourishment." ”

Duan Yiyun nodded excitedly, after condensing the mana seed, there was an additional layer of connection between her and the sternum, and as soon as her mind moved, the sternum returned to her chest.

"Click. ”

With the return of the sternum, the metallic mana in Duan Evian's body suddenly became active, pouring out from the original bones of her physical body and circulating back and forth on the sternum.

This is the second stage of the sword cultivation technique, pregnancy and cultivation.

Through the bridge of mana seeds, metallic mana alternates back and forth in the sword, using the sharp breath of the sword itself to purify the metallic mana, and the power of the sword itself will gradually increase under the blessing of mana for a long time.

Duan Yiyun entered the stage of pregnancy and cultivation almost instantly.

Lu Kun's eyes flashed with gold, revealing a thoughtful look.

At this time, the fusion of Evian and the sternum is only at the level of mana, and the physical body does not have the power of the spiritual root of the fusion device, and only uses the sternum as a sword weapon.

"Imperial Sword Array, Sword Cultivation Technique, I ...... so," Lu Kun muttered.

At this moment, Duan Yiyun suddenly felt that the blood in her body was not under her control, and the rich essence blood spontaneously condensed to her chest, and was subdivided into slender red silk threads by an invisible force, surging towards the complex pale golden lines on her sternum.

The sternum seemed to sense something, and a golden light lit up in the center, and a rich metallic aura exploded.

It trembled wildly, as if trying to escape Duan Evian's body, but it was suppressed in the distance by an invisible force, and it crunched in vain.

The red silk threads that the essence blood turned into seemed to be greatly hindered, and they stagnated at the ports of the lines. （）