Yu Sichen and Mu Chen came outside the city and found a cave in the deserted mountains. Mu Chen pinched his nose and entered the cave. Yu Sichen also followed him into the cave, which may be the residence of large animals, and the area inside was quite large.

She nodded with satisfaction, and used magic to clean up the filth inside. She let go of her nose and took a deep breath.

"Okay, let's stay here for a few days."

As he said that, he took out the bed and other supplies from the storage space, Yu Sichen was stunned.

"You still have these things?"

Mu Chen nodded proudly. Yu Sichen was less and less aware of her method of cultivating her, and she still had the pleasure.

"Let's take a break first, accumulate spiritual energy to the maximum, and adjust our mental state to the best."

As she said that, she set up a restriction at the entrance of the cave, and sat cross-legged on one end of the bed and began to practice. Yu Sichen didn't know what she had plans, so she had to do what she said and sat cross-legged on the other end.

All night, the two of them woke up from the meditation. Yu Sichen saw Mu Chen staring at him and subconsciously hid backwards. Mu Chen made a fool of himself and poured out all the things he bought. The originally wide cave suddenly became crowded.

"Today our task is to use these to refine spiritual weapons. These are the methods and techniques of refining weapons, but they are just basic methods. If you want to refine high-grade weapons, you need to understand the art of refining weapons by yourself."

Mu Chen handed Yu Sichen a jade slip, then picked up two weapons from the pile of spiritual weapons, reached out to drag the weapon in the air, and a light purple flame appeared in his palm.

The weapon gradually became soft under the scorching flames. During this process, the black substance kept falling off. It disappeared without touching the ground. After a moment, it turned into a pool of liquid floating above Mu Chen's hands.

"This step is to purify the materials, which are generally made of raw materials, but it is better to practice using these defective products, which can exercise the accuracy of perception and refinement."

Yu Sichen looked at the jade slip while watching Mu Chen's refining weapon. Mu Chen also slowed down his speed so that he could confirm with each other. The liquid kept squirming and gradually turned into the shape of various weapons. Yu Sichen knew that this was casting, and finally it was fixed on the rough appearance of a sword. The sword was not very long and not wide, and it was obviously a sword used by women.

At this time, Mu Chen made several seal techniques, and translucent patterns appeared in the air. This was the formation that Yu Sichen knew, with an amplification attack effect. The translucent patterns gradually merged into the sword. As the patterns merged into the sword, the sword began to become delicate and the appearance was no longer rough.

"Since it is called a spiritual weapon, it must have spirits. Although there are already spirits when carving the formation, there are too few. The spirits in the spiritual energy need to be condensed and given to the spiritual weapon. Only by being able to impart spirits can it be called a weapon refiner. The spiritual energy between heaven and earth is not sufficient, and it is too troublesome to condense. At this time, the spirit stones must be used, and the level of the spirit stone will affect the level of the weapon."

Mu Chen did not use spirit stones to impart spirits to the sword. After that, he grabbed a handful of air in the air. The terrifying air flowed in the cave. The spiritual energy outside the cave kept filling in. Yu Sichen extended to the spiritual consciousness outside the cave. It was obvious that a storm swept across the desolate land. The storm was many times bigger than when he was practicing.

The spiritual energy flowing into Mu Chen's hands was refined and pure, and the storm outside the cave gradually stopped. According to Yu Sichen's sensing, this spiritual energy was enough to burst a Mahayana cultivation master! Seeing the "spirit" in Mu Chen's hand, it was only the size of a palm.

"It is impossible for people in the cultivation world to refine this way. They can only extract about 10%. That is a good weapon refiner. The purity of my refining is very high, which is probably equivalent to a quasi-immortal level."

Yu Sichen was not surprised at this time. After all, the girl opposite was a real immortal emperor. He watched Mu Chen slowly merge the "spirit" in his hand with the sword, and the formation of the sword body gradually lit up, and the sword body also emitted a faint white light.

As Mu Chen's Spiritual Seal Art began to shake, the sword body began to tremble, and kept making crisp rumbling sounds. The Spiritual Seal Art soon ended with the complete fusion of "spirit" and the sword.

The sword circled around Mu Chen three times, stopped in front of Mu Chen's eyes and made a crisp rumbling sound again, and finally fell into Mu Chen's hand. She stroked the sword body gently, and the rumbling sound kept ringing like a response.

"A casual work is done for those who are destined to be called "Dirty Relationship"."

Mu Chen said as he made a print technique again, and two words "Chenyuan" appeared on the guard guard on the sword.

"Okay, you can do it. Just use the best spirit stone in the spirit. It's still too hard for you to condense spiritual energy now."

Mu Chen Chenyuan Sword entered the space and stretched out a big laziness, pushing a bunch of spiritual weapons in front of Yu Sichen.

"Is that sword the top grade? Why do I feel like a fairy spirit comes out of the sword?"

Yu Sichen's words surprised Mu Chen a little. She knew that Yu Sichen had just had the first close contact with the spiritual weapon yesterday, but he could find the difference between this spiritual weapon.

"The sword just now was a semi-immortal weapon. Although the material was an ordinary material, spiritual power was much more important than the material. Although it was a semi-immortal weapon, it was only better than the best spiritual weapon."

Mu Chen's explanation made Yu Sichen have a deeper understanding of Fu Ling, and then he would start practicing by combining what he just saw with the content in the jade slip.

======================

"boom!"

Yu Sichen looked frustrated. This was the tenth time he failed to give a spiritual gift. As the failure failed, the half-spirited weapon also turned into dust.

"Wow, you can use this to hit people, it's very powerful!"

Mu Chen looked at the dust dissipated in the air and the pits remaining on the ground. Yu Sichen, who was beside him, looked helpless. He clearly did it according to Mu Chen's method, but the result was very different.

"Why? Is it a problem of material purification? A problem of casting? Or a problem of formation?"

Yu Sichen lowered his head and thought about the reasons for the failure, and ignored Mu Chen's words.

Mu Chen patted him with his hand, then picked up a spirit sword and began to refine it. All the steps were as he did, but when he was spiritually pussy, there was a difference. Mu Chen did not fuse all the spirits, but stopped giving spirits at some point, waiting for the fusion of the spiritual weapon to end.

“Have you had too much spiritual power?”

Yu Sichen whispered, Mu Chen nodded to him and handed him the completed dagger in his hand.

"Do you know how to detonate the magic weapon?"

Mu Chen's words confused Yu Sichen. Although he had heard his parents say that cultivators could detonate spiritual weapons to hurt the enemy, or even use their own detonation to die with the enemy, they did not know the method. At this moment, Mu Chen reminded him to have a flash of inspiration in his mind.

"Is it because of excessive spirit?"

Mu Chen nodded.

"The so-called spirit is a more pure energy. Any carrier has an upper limit to carry energy. Cultivators can divide levels because the number of carried by each stage is different, and the same is true for spiritual weapons. For example, excessive energy will explode."

After Mu Chen's demonstration and explanation, Yu Sichen already understood the truth, but he was a little confused about why Mu Chen had to delay his efforts to teach him these things.

"Mu Chen, you have very little time in the cultivation world, why do you teach me these?"

When Mu Chen heard Yu Sichen's question, her face became a little lonely. She didn't want Yu Sichen to know about the matter of the reincarnation technique, and she couldn't bear to leave, but the laws of heaven and earth did not allow her to stay for a long time.

"In order for you to successfully overcome the heavenly tribulation in the future, you have to learn to refine your weapons after you have finished practicing. After you have finished learning everything, I want to ask you something."

Mu Chen's words hit Yu Sichen. He had seen the horror of the heavenly tribulation, so he believed in Mu Chen's words, but he didn't know that it was not the heavenly tribulation of the tribulation period, but the first half of the divine tribulation!

"Thank you, although I felt that I would have met you at first sight, and I also felt that we would have met in our previous lives, or even had a deeper relationship, but I have no reason to let you do this in this life..."

The longer Yu Sichen and Mu Chen stayed, the more they felt that their relationship in their previous lives was unusual, but Mu Chen treated him the same as his feelings. Although neither of them said that, these feelings were buried in their hearts.

"Actually, I feel the same way. Even inviting you to walk around the world of cultivation together, all the thoughts burst out from the depths of your soul. We should be the same, do you hate me like this?"

Mu Chen's eyes were filled with uneasiness, she was afraid that Yu Sichen would say the answer she didn't want to hear.

"I don't hate you doing this, I can even say that being with you is my wish."

Yu Sichen did not hide his thoughts. The first time I saw her, in addition to the familiar feeling deep in her soul, was that she liked her very much. It could be said that she fell in love at first sight, but for various reasons, he thought that this relationship was not his own.

"Really? Being with you will make me happy. This is my feeling. Although I am often affected by the depths of my soul, my heart may also hope so."

Mu Chen understood Yu Sichen's thoughts at this moment because he was the same. Many things were all due to the influence of the depths of his soul. In addition, the martial arts he practiced, he became different from usual since that day, but he didn't hate it, but he liked it very much.

"Then I will teach you how to refine elixirs and go to Yunyou to practice the truth together, okay?"

When Yu Sichen heard Mu Chen's words, he felt that she was as confused as he was. When he promised to travel with her to practice cultivation, it was completely a short memory. Being together these days made the mood that she once loved burn again, and it also turned into a kind of expectation.

"Okay!" There is only one simple word, but it makes Mu Chen's heart happy again. Just like when he was invited that day, perhaps these simple words are enough between the two of them, not for the past life, but for the present life.

Mu Chen asked Yu Sichen to continue practicing making tools here, not only weapons but also spiritual armor, but also gave him some materials to try to make spiritual weapons for storage. Yu Sichen also worked hard to allow Mu Chen to have more time to be with him.
Chapter completed!