Zeng Xiaoyu's mind moved, and he immediately urged the Kunpeng Spirit Shield on his arm.

The Kunpeng Spirit Shield turned into a shield with thunder and light, blocking in front of Zeng Xiaoyu.

The heavenly demons who were slaughtered were constantly wailed, and finally turned into nothingness.

With the Kunpeng Spirit Shield here, he finally shared a lot of pressure for Zeng Xiaoyu.

In addition to being afraid of the Buddha's light, demons are usually afraid of thunder, and the power of thunder and lightning has a very strong restraint effect on them.

When Zeng Xiaoyu last crossed the Golden Pill Heavenly Tribulation, the Kunpeng Spirit Shield absorbed a lot of thunder and lightning power, and finally turned into a thunder shield, which was used to resist the attacks of the Heavenly Demons, and it was very powerful.

However, the Kunpeng Thunder Shield is only a treasure of passive defense, and whether it can last or not, Zeng Xiaoyu's heart is uncertain.

Therefore, Zeng Xiaoyu held the Kunpeng Thunder Shield in his hand and quickly ran towards the depths of the first line of heaven.

Suddenly, a faint blue flame appeared in front of him.

The flames appeared to be the size of a fist, and when blown by the wind, they began to shake, and the temperature emitted from them did not seem to be too high.

However, as soon as Zeng Xiaoyu saw this flame, his eyes suddenly widened, and he looked at the flame in disbelief.

"Nanming is away from the fire of the fire!"

Zeng Xiaoyu has a lot of eyes.

This Nanming Lihuo is the same level of heaven and earth spiritual fire as the Red Lotus Karma Fire, if it can be absorbed and refined, the flames on Zeng Xiaoyu's body will definitely be even more powerful.

It's just that how to refine this Nanming Lihuo, Zeng Xiaoyu feels a little tricky.

He didn't have the practice of cultivating the fire attribute, and the reason why he was able to refine the Red Lotus Karmic Fire before was only successful when he hit it by mistake.

As for how to refine this Nanming fire from the fire, Zeng Xiaoyu felt clueless.

The Heavenly Demon in front of him was still fearlessly impacting the Kunpeng Thunder Shield in front of Zeng Xiaoyu.

Zeng Xiaoyu's heart was a little anxious.

If he couldn't refine and absorb this Nanming Lihuo, he wouldn't be able to take it away.

Suddenly, Zeng Xiaoyu's gaze fell on the body of a jade-like skeleton beside the flame.

Being able to cultivate the bones of a body to the point of being like a spiritual jade shows that this person's cultivation in life must be extremely high.

Look at the wrist of this skeleton, there is even a bracelet on it!

"Storage bracelets!"

As soon as he saw this, Zeng Xiaoyu was so excited that he became short of breath, and hurriedly came to the side of the skeleton, took off the storage bracelet, and probed his spiritual sense inside.

Rumble~

The spiritual sense penetrated, and a very large storage space appeared in front of Zeng Xiaoyu's spiritual sense.

This storage space is many times larger than Zeng Xiaoyu's existing storage bracelet!

It's just that Zeng Xiaoyu feels a little regretful that the things in this storage bracelet are very rare.

There was only a bronze lamp and a somewhat broken piece of ancient jade.

Zeng Xiaoyu's expression moved slightly, and he immediately took out the jade slip, and his spiritual sense looked inside.

It's just that because the jade slip is broken, the information stored in it has become disorganized, and because of the investigation of spiritual sense, there is an extra crack on the jade slip.

Zeng Xiaoyu's face changed slightly, and he didn't dare to investigate again, but immediately asked the exercise upgrade system in his mind: "System, please help me scan what is recorded in this jade slip?"

System: The system is scanning...

Ding, the system scans the Yuan Infant Stage exercises, the Yan Emperor Fire Sutra, and the exercises are ranked in the middle grade of the heavenly level, and can be upgraded and improved to the top grade of the heavenly level, please confirm whether it is upgraded?

"Upgrade now!"

At this time, the situation was critical, Zeng Xiaoyu did not hesitate, and ordered the system to upgrade and improve the exercises.

......

Ding, the system has completed the improvement and upgrade of the exercises, please check the host......

As the sound of the system fell, countless information began to pour into Zeng Xiaoyu's sea of knowledge.

The Yan Emperor Fire Sutra belongs to the exercises of the Yuan Infant Period, and Zeng Xiaoyu is now only in the early stage of Jindan, so he naturally cannot meet the requirements of cultivating the Yan Emperor Fire Sutra.

However, Zeng Xiaoyu still quickly investigated in the sea of knowledge, and suddenly his face was happy:

"Yes, the Spark Liaoyuan Secret Technique, one of the secret techniques of the Yan Emperor Fire Sutra, can also be cultivated if it is not in the Yuan Infant Stage!"

The Spark Burning Plain Secret Technique is the secret technique used in the Yan Emperor Fire Sutra to subdue the Heaven and Earth Spiritual Fire, upgrade the Heaven and Earth Spiritual Fire and manipulate the Spiritual Fire for battle.

It is just right for Zeng Xiaoyu's cultivation now.

The cultivation method of the Spark Liaoyuan Secret Technique was not difficult, and with the help of the system, Zeng Xiaoyu quickly mastered the cultivation method of the Secret Technique.

At this moment, those Heavenly Demons were constantly attacking the Kunpeng Thunder Shield.

Zeng Xiaoyu didn't dare to slack off, looked at Nanming Lihuo in front of him, and immediately sat up cross-legged and began to practice secret techniques.

"Up!"

Zeng Xiaoyu kept putting some magic seals into the Nanming Lihuo in front of him, and suddenly let out a low shout, and the Nanming Lihuo fire on the ground was pointed at by Zeng Xiaoyu, and immediately flew up from the ground slowly.

This shows that this Nanming Lihuo has been initially controlled by him.

However, in order to completely control this Nanming Lihuo, Zeng Xiaoyu still needs to absorb it into his body and refine it completely.

However, refining the spiritual fire of heaven and earth is not easy in the first place.

This Nanming Leaving Fire belongs to the extremely high-level heaven and earth spiritual fire.

It seems weak, but it is not very powerful, and the heat is not too great.

But that's just the surface of it.

In fact, it contains extremely terrifying heat and energy.

It's just that it's extremely introverted that it doesn't feel too hot.

Once it erupts, the whole person will probably be burned into nothingness by this Nanming Lihuo.

Therefore, in order to refine this Nanming Leaving the Fire, Zeng Xiaoyu was extremely careful.

Zeng Xiaoyu continued to inject many magic seals into the fire, and after the fire was covered with the magic seals that Zeng Xiaoyu had entered, and became extremely tame, Zeng Xiaoyu opened his mouth and sucked it carefully, and carefully sucked this Nanming fire into his mouth.

Fortunately, this Spark Burning Plain Secret Technique was the cultivation technique of Emperor Yan in ancient times, which was very advanced, and its secret technique was also very clever.

After Zeng Xiaoyu swallowed Nanming Lihuo, he found that Nanming Lihuo came to Zeng Xiaoyu's dantian very docilely, and began to settle in the dantian.

Zeng Xiaoyu didn't stay anymore, and continued to follow the secret method to start refining the Nanming Lihuo that had entered the dantian, until the whole Nanming Lihuo was really refined by him, Zeng Xiaoyu stopped.

"Get out of the fire, out!"

Suddenly, Zeng Xiaoyu's hand pointed forward, and the Nanming Lihuo that had just been refined immediately flew out of his body, and the terrifying high temperature suddenly emitted out, burning all the rocks on the surrounding cliff walls.

After this Nanming Lihuo was refined by Zeng Xiaoyu, it was nourished and supported by Zeng Xiaoyu's mana, and it had changed from the dying appearance just now, and became a vigorous tiger.

It's just that although this Nanming Lihuo is powerful, for the kind of heavenly demon between the virtual and the real, the lethality is still limited!

Nanming Lihuo focuses on burning tangible and qualitative objects.

For the Heavenly Demons, although they can burn their demon souls, the lethality in this aspect is far less than that of the Red Lotus Karma.

Because what Red Lotus Karmic Fire is good at is burning formless and insubstantial things, and it is the nemesis of all monsters.