Lu Chen's eyes shone, and the brilliance was compelling.

"Go out and try the power of this cloud-piercing sword technique."

Lu Chen quickly came to the courtyard, and the cold light sword that he won from Wang Xiaotian in his hand was slightly shaken, and the cold light sword suddenly uttered a loud sword chant under the infusion of internal force.

"Huh!"

The sword body rises, and the sword shadow condenses!

"hiss!"

A series of sword lights instantly enveloped a piece of rock in front of Lu Chen.

The black sword shadow is like a beast.

After a short period of time, the sword shadow disappeared, and the rock turned directly into dust.

Seeing this scene, even Lu Chen himself was a little dumbfounded.

Of course he knew that the cloud piercing sword technique was very powerful after refining, but he didn't expect that the power was so powerful.

His eyes widened and he looked at it for a long time before Lu Chen recovered.

"too frightening!"

"This is an intermediate martial skill, it's a terrifying high-level martial skill!" Lu Chen thought with horror in his heart.

You know, in the Lu Family, there are several elders in the Innate Realm, and they only practice high-level martial arts.

Every high-level martial art is very, very precious, and as long as the cultivation is successful, the power is extremely amazing.

In the family comparison, what attracted Lu Chen the most was the opportunity to enter the third floor of Wanbao Pavilion. There, Lu Chen might be able to obtain a high-level martial art.

Martial skills are vital to any cultivator.

"The Universe Soul Seal is really amazing. It directly raises the power of intermediate martial arts to this level." Lu Chen exclaimed again.

"But..." Then, Lu Chen frowned slightly.

"This refined cloud piercing sword technique consumes too much internal power, right? I am at the realm of marrow washing, and my internal strength is much stronger than the average mid-level marrow washing cultivator. However, I just use it. One move through the cloud sword technique consumes one-tenth of the internal force."

"If it's me in the body tempering realm, then I can't exhaust it with one trick?" Lu Chen shook his head slightly.

Moreover, what Lu Chen had just performed was only the first form of the Cloud Piercing Sword Technique.

The refined cloud piercing sword technique is the same as the breaking wind sword technique, there are a total of seven styles.

When using martial arts, any cultivator knows that the more the later moves, the greater the power and the more internal power it consumes.

Lu Chen guessed that if he used the seventh formula of the Cloud Piercing Sword, he would be able to do it three or four times in a row, but his internal strength would be exhausted.

This shows how terrifying the internal power consumed by the refined cloud piercing sword technique.

Of course, while it is expensive, its power is undoubtedly very satisfying.

Lu Chen didn't try to perform the seventh style of the Cloud Piercing Sword. There was no need for that. Lu Chen knew for himself that he had mastered all the seven styles of the Cloud Piercing Sword Technique. And if you use it, it will consume internal strength and it will take time to recover. Even if it recovers with the marrow washing potion, it will probably take at least a few hours or even more time to fully recover.

After stopping for a moment in the courtyard, Lu Chen returned to his room.

He began to refine the marrow washing potion.

From the Treasure Pavilion, I purchased a full fifty percent of the marrow cleansing agent materials. These materials should be able to refine a lot of perfect quality marrow cleansing agents.

Lu Chen, in the shortest possible time, sprinted to the mid-washing marrow realm.

Ten days later, Lu Chen refined all fifty parts of the marrow cleansing potion into a marrow cleansing potion. Among them, there are ten bottles of perfect quality, and the remaining forty bottles are all of excellent quality.

Even if it is a good-quality marrow cleansing agent, the value of a bottle is at least more than 6,000 gold coins. Forty bottles, you are more than two hundred thousand. Of course, this is only calculated according to the lowest value. At auction, the value will definitely exceed this number.

However, Lu Chen's purchase of the materials for the marrow washing potion cost only about 1,000 gold coins for each one. The profit here is extremely amazing.

Next, Lu Chen began to use the perfect quality marrow cleansing agent to enhance his internal strength.

One day passed, two days passed...

Time is like running water.

The sun rises and sets again.

However, the passage of time did not affect Lu Chen at all. He stayed at home and was immersed in the practice every day. After the effect of one bottle of perfect quality marrow cleansing potion was absorbed, he immediately swallowed the second bottle.

In this way, after half a month, Lu Chen's realm finally reached the peak of the initial stage of marrow washing, and he faintly felt the barriers of the middle stage of marrow washing.

At this time, Lu Chen stopped.

He continuously circulates his internal force through the martial art meridians in his body. One hundred and eight martial art meridians, each of which is constantly infused by internal force.

Now, Lu Chen can try to break through the realm. However, he was not in a hurry.

A breakthrough must be successful once, so there is no urgency. What Lu Chen is doing now is to adjust his state to the best.

In this way, another three days passed.

"almost!"

Lu Chen smiled slightly, and then he took out purple fruit.

When he broke through from the body tempering realm to the marrow washing realm, Lu Chen consumed two purple flowers by himself, and then after the battle with Wang Xiaotian in the treasure pavilion, he gave Lu Yanran two more purple flowers, so he still had six remaining. Purple flowers and fruits.

These six purple flowers were enough for Lu Chen to break through to the middle stage of marrow washing.

"Then, let's start!"

Lu Chen opened his mouth and sent a fragrant purple fruit into his mouth.

"Chichi! Chichi!"

The purple flower fruit melted at the entrance, like a torrent, entering Lu Chen's abdomen, making a faint sound.

"Broken!" Lu Chen, controlling his internal force, fiercely attacked the barrier in the middle stage of Xisui.

As long as this barrier is broken, Lu Chen will become a cultivator in the middle stage of marrow washing.

This barrier is invisible and intangible, but it can be felt.

"Break it for me!" Lu Chen roared in his heart, and the internal force of his whole body rushed violently like boiling water.

The Universe Mind Method is being operated vigorously.

In fact, the Universe Mind Method that Lu Chen mastered was nothing but a fur. However, the strength of the Qiankun Mind Method is far beyond the imagination of ordinary practitioners.

Even if he only mastered the fur, it was enough for Lu Chen to control the internal power transformed by Zihuaguo.

Bombardment again and again!

Loosen again and again!

"puff!"

Lu Chen only felt a slight lightness in his body, and immediately, the barrier from the early stage to the middle stage of the marrow washing completely collapsed.

The vigorous internal force penetrated through the 108 martial art meridians in the blink of an eye.

"call!"

With Lu Chen's thoughts moving, the internal force in his body squeezed out into the surrounding space violently.

At the moment when the internal force was surging, even a harsh air friction sound could be heard.

That's right, that is the air flow generated by internal force and air, suddenly forming a sound formed by a great speed.

The breakthrough was successful!

Lu Chen was officially promoted from the early stage of marrow washing to the middle stage of marrow washing. The internal force is several times stronger than before.

However, Lu Chen did not open his eyes, his eyes were still closed.

Although it has broken through the realm, it still needs a certain degree of stability.

Lu Chen continued to pick up the porcelain bottle containing the perfect quality marrow cleansing agent, and swallowed the perfect quality marrow cleansing agent.

Consolidating the realm is very simple.

What's more, Lu Chen used a perfect quality marrow washing potion. It didn't take much time for him to completely stabilize the middle stage of marrow washing.

Two days later!

Lu Chen slowly opened his eyes, and between his breath, a loud, long hum, gushing out.

A faint smile appeared at the corner of his mouth.

"The middle stage of marrow washing, the next step is the late stage of marrow washing. After the latter stage of marrow washing, it is the innate realm." In Lu Chen's eyes, there was a ray of divine light, shining brightly.

His sleeves shook suddenly, and then stood up.

He glanced over where he was in front of him, and his brows suddenly frowned.

"Purple fruit, there are only two left?" He shook his head gently.

Before the breakthrough, there were six purple flowers. In other words, in addition to the consumption of the perfect quality marrow cleansing potion, Lu Chen only used as many as four purple flower fruits.

Lu Chen didn't care if he consumed the perfect marrow cleansing potion, he could continuously refine it. But consuming purple flowers is a big problem. You can't buy this thing at any time if you have money.

You know, the reason why Lu Chen was able to go so smoothly and only used this short period of time to break through to the middle stage of marrow washing is absolutely indispensable.

The remaining two purple flowers were obviously not enough for Lu Chen to break through from the middle stage of the marrow wash to the late stage of the marrow wash.

"Forget it, I don't want that much for now, it's time for the family competition. After the family competition, think of a solution." Lu Chen shook his head gently in Qin, removing the distracting thoughts from his mind.

Afterwards, it took a while to clean the room. The remaining two purple flowers and the marrow washing potion were put back into his space ring.

At this time, he was outside the small courtyard where Lu Chen lived. The guards sent by the two Patriarchs looked at each other, full of doubts.

Just now, they heard a strange, harsh sound coming from the room, but the sound was very short. This made them wonder if they should go inside and check it out.

Moreover, the Lu Family's triennial family competition has officially begun today.

In the past few days, the entire house of the Lu family has been quite lively. A descendant of the Lu family, constantly shuttled in the compound. Among them, some wanted to visit Lu Chen, but they were all stopped by the guards.

Some people don't care when the visit is blocked, but some people feel uncomfortable, thinking that Lu Chen's arrogance is too big, and he can't help but criticize.

"Do you think Master Lu Chen has forgotten the family competition? Let's, do you want to notify him?" a guard said with his eyebrows down.

"But Master Lu Chen, I told us that he is in retreat and no one can disturb him. If we affect Master Lu Chen's cultivation, will it..." The other guard hesitated.

"Master Lu Chen did say so, but this time of retreat is too long, right? I haven't been out for two months. If we miss the family match, will he blame us for not informing him?" The guards also have their own reasons.

"Crack!"

When they were discussing whether to enter the courtyard and notify Lu Chen, the door of that room was pushed open.

Then, Lu Chen's figure walked out.

When the two guards saw Lu Chen walking out, they both let out a sigh of relief before entering the courtyard together.

"Master Lu Chen, the family match has officially started today." A guard said aloud after bowing to Lu Chen.

"Oh?" Lu Chen was taken aback for a while.

He has been in retreat for a while.

Although there is a general understanding of time, it is not very precise. Therefore, after hearing the guards say that the clan match has already begun, I was a little dazed.

"From the day before yesterday, the registration started. After half an hour, the registration will be closed. Those who do not register by that time will lose the qualifications for the competition." The guard said immediately.

"Well, I see, I'm going to the martial arts venue. Two people, thank you." Lu Chen arched his hands.