The ghost bones that are lurking and will come back at some point are undoubtedly a big threat to Lu Zheng.

In order to deal with and even completely stifle this threat, all he had to do was to comprehensively improve his cultivation, equipment, and learning in the shortest possible time.

The first time, because of the close strength of the two sides, the ghost bone escaped under his nose, and he would never allow this to happen the second time!

Therefore, he secretly prepared and spent more than 100 gold to purchase a high-grade sword weapon on the market, a close-fitting inner armor, and then in one go, he directly strengthened these two armors from the boutique level to the purple treasure level, and also turned them into human yuan spirit treasures in the world.

After making these preparations, he found an excuse to leave the Demon Slayer Division the next day and today, and came to the Tianding Chamber of Commerce, which he had inquired about before, and shot directly.

He also carefully considered the choice of this house, this big chamber of commerce has no special background, and it is going downhill, and it is just right to be eager to collect treasures and expand its influence in the market.

Indeed, as he thought, although the other party had a little trouble making up these three hundred Heavenly Rune Treasure Money, they finally got it smoothly.

And the reason why all the Heavenly Fu Treasure Money was chosen this time was naturally because of such a huge sum of money as 30,000 gold leaves, and it was time-consuming and laborious to buy all the cheapest top-grade pills, and it was also possible to attract the attention of people with a heart, which was naturally undesirable for Lu Zheng, who had no extra time to waste now.

Even if there is no maximization of benefits, the full 9,000 points of enhancement essence are enough for him to carry out the upgrade plan!

In this way, with joy, Lu Zheng first returned to the most famous Heavenly Soldier Pavilion, carefully selected, and spent nearly 100 gold leaves to buy a long knife of outstanding quality among the top grades, and then rushed back to the Demon Elimination Division non-stop, and went straight to the practice retreat.

After leaving for a short time without attracting much attention, he returned to the dim and quiet practice quiet room, and immediately took out the long knife he had just bought.

【Cold Feather Knife】

Quality: Boutique (blue)

Description: A long knife forged by polar meteorite smelting, with a strong and sharp texture, which can cut gold and jade.

"Yes, this knife seems to be better than the Hundred Refined Steel Knife of the same level, as well as the Demon Slaying Knife issued by the Demon Slayer Division......"

Gently stroking the cold blade, Lu Zheng's eyes flashed:

"So, I'll use you as an embryo......"

As he spoke, he moved in his heart, stretched out his hand to connect the dots, and the long knife that had just been in his hands suddenly bloomed with a bright purple light!

If you want to do a good job, you must first sharpen your weapons, if the other night when he fought with the ghost, he held a purple rare level divine weapon in his hand, the other party may not be able to take the knife of his sudden attack, and there will be no subsequent series of things at all.

So the first thing he has to do is to strengthen the weapon to the rare level as a killer weapon!

Zheng Zheng Zheng ......

Reaching out to connect the dots, under two consecutive strengthenings, the sheath of the Cold Feather Knife trembled violently, making a rapid humming sound, as if it was experiencing this unprecedented change.

After a few breaths, the violent humming sound gradually stopped, and the bright purple light on the blade and scabbard also dissipated, and Lu Zheng immediately held the handle of the knife and pulled the knife out of the sheath.

Qiang ......

In a roaring sound that seemed to freeze people's souls, a touch of snow and cold light bloomed, and a whole silver-white body, the light of the blade and the cold air swirled, like a miraculous long knife that came into view.

The blade is silvery-white, as if it is crystal, and it seems to be carved from thousands of years of ice, distorting the light that shines on it, which looks magnificent and weird.

Especially between the flickering of the cold light, a sharp edge that cut and froze everything. The cold air has caused the temperature to drop suddenly!

At the same time, in Lu Zheng's sight, the information of this knife has become:

【Frost Blade】

Quality: Rare (Purple)

Description: With the frozen earth and extremely cold meteorite as the embryo, the magic weapon forged by thousands of hammers and thousands of exercises is incomparably sharp, and the holder holds the mind quietly, the spiritual platform is clear, and the spirit is greatly enhanced, and the risk of going mad is reduced.

Snort!

Lu Zheng did not hesitate, suddenly swung the knife, only to see the blade blooming, like a path of lightning tearing through the darkness, all the blocked air, dust, and light in front of him seemed to have been cut open, giving people a feeling that where the sword light passed, everything was shattered!

And what is even more amazing is that between Lu Zheng's blood and qi infusion and blade wave, the invisible knife gang swept through the void, and the surrounding walls and ground, which were obviously not touched, quietly cracked and deep knife marks, showing unimaginable sharpness!

"Sure enough, the better the embryo, the better the strengthening effect, what a Heavenly Frost Meteor Knife!"

Under the test knife, the sharpness was peerless, and Lu Zheng suddenly stopped his movements, :

"If you used this knife that day, that ghost bone would definitely not be able to escape!"

Although the Demon Slayer Saber he used at that time had been strengthened, it was still of an extraordinary level, and the opponent's fist gloves of the same quality had a chance to block it.

But this rare level Heavenly Frost Cold Meteor Knife is superior in both texture and sharpness, if the other party dares to parry like this, I am afraid that a pair of palms will be cut off, let alone escape from under his nose.

In addition to being sharp, the special effects that make Lingtai Qingming are also extremely rare, and I don't know how many martial artists will be able to break their heads when they are released.

"But that's not enough. ”

With a bang, Lu Zheng put the knife into the sheath, and then took out a medicine box from his arms, in which lay pills the size of a dragon's eye.

【True Martial Qi and Blood Pill】

Quality: Boutique (blue)

Description: The Qi and Blood Dan refined from a variety of precious medicinal materials can harmonize Qi and blood and strengthen blood to a certain extent.

These True Martial Qi and Blood Pills were also one of his preparations.

The hole cards of the weapon are already there, and the next step is to cultivate. After transferring to the "Kunpeng Covering the Sea True Gong", Lu Zheng Kankan had only completed the first three layers of cultivation, and the fourth layer of expanding the dantian qi sea had not yet begun formal cultivation, he was just going to use the rare level elixir to enhance his cultivation while completing this step in the shortest possible time!

Call!

In the midst of the humming vibration, Lu Zheng was already connecting his index fingers and landing on one of the pills.

The luxurious purple light fluctuated, and this True Martial Qi and Blood Pill seemed to come to life all of a sudden, and began to shrink and expand continuously.

And in this process, the texture of its surface changed rapidly, the brown danyi became as crystal clear as amber, and a strong medicinal fragrance like a tide gradually emanated, and the nearest Lu Zheng took a sip slightly, and suddenly felt the blood qi slightly restless, as if he had poured a large sip of spirits.

In a few breaths, the purple light dissipated, the strengthening was completed, and the mediocre True Martial Qi and Blood Pill had already expanded in size, turning into a beautiful and crystal-like amber Strange Pill pill!

【Xuanwu Sacred Heart Pill】

Quality: Rare (Purple)

Description: The gods are self-satisfied, and the sacred heart is prepared. It contains a large amount of vital essence, irrigating and nourishing, filling the sea of qi, refining the body and mind, and removing impurities from dark injuries, which is a first-class cultivation treasure.

"It's done!"

After the strengthening was completed, Lu Zheng picked up this magical elixir like crystal amber for the first time, and his heart was surging.

It was the first time he had seen a rare level elixir. When his strength was once low, several extraordinary level pills and formulas had brought him a reborn change, so could this higher-level Xuanwu Sacred Heart Pill reproduce the situation of the past?

Thinking of this, Lu Zheng did not hesitate, directly put it in his mouth, and swallowed it.

Rumble!

After just a moment of calm, the already majestic and surging blood qi in Lu Zheng's body suddenly began to riot violently, as if the Xuanwu Sacred Heart Pill and the blood qi in his body had a chemical reaction like thunder and fire.

Accompanied by a drastic change in Lu Zheng's face.

Boom Boom Boom ......

Obviously, he didn't do anything, but his nose, eyes, mouth, and even every pore, there was an invisible blood qi flame flying out, and the void blood qi was tangled and entangled, forming a rolling heat wave, it was like a volcano suddenly erupted!

It's a pity that Lu Zheng himself didn't pay attention to this scene at all. His eyes were closed, his expression was shocked, and he devoted himself to digesting and absorbing the majestic medicinal power in his body.

At this moment, in the induction, the vast medicinal power of the Xuanwu Sacred Heart Pill swept through his whole body like a tide, and under the explosion of an invisible force that seemed to be overwhelming and pervasive, the blood and qi of his whole body were like boiling oil and splashing water, boiling violently.

It was as if every inch of his flesh and blood, every organ, and even every cell was like a long-arid forest, watered by the rain that fell from the sky.

Immediately afterward, the Zhongdantian Qi Sea, which was the source of his blood qi, seemed to be overwhelming, and the surging blood qi in it had completely turned into a huge vortex, thus triggering a riot of blood qi throughout his body, and it was galloping and growing at an unparalleled speed!

It was almost visible to the naked eye, and the blood qi in his whole body was growing rapidly every minute and every second, and Lu Zheng, who was in the midst of the surprise, immediately made a decision and immediately began to operate the fourth layer of "Kunpeng Covering the Sea True Skill"!

Then he discovered that at this moment, under the astonishing effect of the Xuanwu Sacred Heart Pill, the operation of his exercises was actually ten times faster than before! Then, with the control of his mind, a huge amount of blood qi surged back into the sea of qi, and then violently circulated and agitated, invisibly expanding little by little, expanding!

Starting from the fourth layer, in addition to the tempering of blood and qi, the more important thing is to open up and expand the dantian qi sea in a unique way, which can tap the potential of the human body more deeply, so as to achieve a huge amount of blood qi that can be several times more than the ordinary blood qi realm.

Originally, this process required enough blood and qi to gather and stir and wash, so that the dantian could be expanded little by little, but under the majestic medicinal power of the river and the sea, this difficult process became so easy that it was effortless!

Cracking sound......

The rolling qi and blood and heat waves had already filled the entire practice meditation room, and if it weren't for the fact that the meditation room was completely sealed, I am afraid that it would have already alarmed the people around it.

Time passed, the sky above his head was completely dark, and Lu Zheng still sat still, and the vast aura emanating from his body was like an abyss, a prison, and a sea.

From afternoon to night, and then from night to early morning, no one came to disturb him, and no one knew that a huge transformation and transformation was taking place on Lu Zheng's body.

Unconsciously, until seven or eight hours later, the next morning.

Thundered......

A slight and dull roar echoed inside Lu Zheng's body, as if there was some kind of resonance, and at this moment, the blood and qi heat wave that had been rolling on Lu Zheng's body surface had almost disappeared, and it seemed to have all converged into his body, and in its place, it was an extremely obscure, depressing and terrifying fluctuation.

This feeling is as if Lu Zheng's body has become a restless volcano, which will erupt at any time and burn everything around it!

"Hoo ......"

A strong air flow erupted from his mouth and nose, and Lu Zheng's eyelids moved slightly, and he slowly opened his eyes.

And his eyes were full of surprise.

Because, he suddenly felt that at this moment, after the medicinal power was digested, the part of his dantian qi sea had more than doubled, and the blood qi in his body was like a river rushing, rolling like a tide, and it was even more huge and almost doubled!

In addition, Lu Zheng can also feel that his body, flesh and blood, and even all the internal organs, have become extremely light and transparent, he can clearly distinguish the floating of air and dust around his body through his pores just by standing still, as if the whole person's soul and body have been thoroughly washed from the inside out, and the changes are huge!

"What a Xuanwu Sacred Heart Pill!"

In a burst of firecracker-like bone explosions, Lu Zheng stood up violently, feeling extremely comfortable:

The Rare Rank Xuanwu Sacred Heart Pill really didn't disappoint him, and after a whole night of medicinal power digestion, the changes in his body could already be called earth-shattering.

First of all, it is the fourth layer of "Kunpeng Covering the Sea True Gong", entering the realm is like divine help, and it is basically cultivated overnight, as long as it is carefully polished and perfected, you can enter the peak and consummation, and carry out the next stage of cultivation.

What's more, after the medicinal power was digested, the strange refinement of his body and mind, the nearly doubled dantian qi sea, the majestic blood qi, everything meant that his cultivation strength had skyrocketed!

With the newly strengthened Heavenly Frost Cold Falling Knife, plus the cultivation qi and blood that has now skyrocketed and doubled, Lu Zheng is sure enough, not to mention a ghostly bone, but a few more masters of the same level, and he will never want to get away from his knife again!

"Now, it's finally comfortable......"

Weapons and cultivation have been double-upgraded, and Lu Zheng, whose strength and confidence have skyrocketed, lowered his head, feeling the surging power in his body, his eyes flashing:

"But the blood has skyrocketed too much, and it seems that the "Breath Sensing Method" that has just started is out of control......"

The Xuanwu Sacred Heart Pill was indeed amazing, but it brought Lu Zheng a little trouble with it, that is, he had not practiced the breath sensing method at home at all, and he could barely control such a powerful qi and blood.

Once he came face to face with the other Demon Slayer lieutenants, there was no guarantee that they wouldn't notice something was wrong.

"Anyway, the essence is enough, since that's the case......"

Two successive rare level enhancements, the enhanced essence consumed was only more than 2,000 points, and now Lu Zheng, who was wealthy, did not hesitate, and directly took out the "Shooting Sensing Method" that he had been carrying with him from his arms, and tapped it with one finger:

"Strengthen!"