The Xuanchen Realm is a small world, and the limit that the Great Dao of Heaven and Earth can accommodate is the level of human immortals.

It stands to reason that the earth immortal spirit material in Bai Ye's hand cannot be entered.

However, now that Bai Ye entered the Xuanchen Realm with the Earth Immortal Spirit Material, although he also felt the blockage of the Heaven and Earth Barrier, the blocking power was not strong, and he broke through with a little strength, and successfully entered the Xuanchen Realm with the Earth Immortal Spirit Material.

The reason why this is the case, Bai Ye also quickly reacted to the reason.

This is the Xuanchen Realm's 'Yin Yang Tribulation' has come to an end, the laws of the Great Dao of Heaven and Earth have been loosened, and the world has begun to advance.

Whether it is turning into a large world or falling into the Nine Demon Realm, it is the 'advancement' of the small world, but one is an immortal and the other is a demon.

However, for the small world, it is the restriction of the Great Dao of Heaven and Earth that has been loosened and improved.

Now, Bai Ye easily broke through the diaphragm with the earth immortal spirit material and entered the Xuanchen realm.

It is enough to show that the restriction of the Heaven and Earth Great Dao in the Xuanchen Realm has gradually increased to the level close to that of the Earth Immortal.

I'm afraid that in the near future, in the Xuanchen Realm, there is a high probability that there will be an existence at the level of an earth immortal?

Thinking of this, Bai Ye's heart became more and more urgent!

If there is really an advanced earth immortal, then even if he is an advanced Yuan God and Human Immortal, it will be difficult to compete!

It's hard to catch up with the top existence in the Xuanchen Realm in terms of combat power, and you can't be left behind in the blink of an eye!

He must hurry up, it is best to be able to completely accommodate the existence of earth immortals in the Xuanchen Realm, and complete the reincarnation before the earth immortals appear among the various forces in the Xuanchen Realm!

At that time, he has already established reincarnation and controlled the reincarnation avenue of the Xuanchen Realm, even if someone advances to the earth immortal, he is not afraid.

Knowing that time was pressing, Bai Ye did not delay any longer, took the earth immortal spirit material, returned to the cave mystery realm, and after a little preparation, he began the advancement of the natal spirit treasure.

From the first time he used yin and yang copper, he grinded out a copper mirror and sacrificed this life weapon.

In the back, the natal magic weapon advances the natal spirit weapon, the natal spirit weapon advances the natal magic weapon, and the natal magic weapon advances the natal spirit treasure, advancing again and again, improving again and again, Bai Ye is already familiar with it.

Smelt the three pieces of Earth Immortal Spirit Materials, 'Vientiane Empty Mirror Stone', 'Dead Soul Bone' and 'Xi and Jade' into the Natal Spirit Treasure, and upgrade the Natal Spirit Treasure embryo to the Immortal Weapon Material, among which for Bai Ye, the most rare thing is the processing of the three Earth Immortal Spirit Materials!

The earth immortal spirit materials already have some of the characteristics of the earth immortals, not to mention how strong they are, if they want to deal with Bai Ye's current cultivation, it is extremely labor-intensive and energy-consuming.

Just like the 'Vientiane Empty Mirror Stone', which contains many 'mirror spaces' and countless spatial powers, Bai Ye must be handled carefully, and when smelting, these 'mirror spaces' must be completely preserved and the spatial power in them should be sorted out.

Otherwise, if the countless 'mirror spaces' contained in it were destroyed during the smelting of spiritual materials, then the effectiveness of the 'Vientiane Empty Mirror Stone' would be directly reduced by half, and it would have no effect on the improvement of the natal spirit treasure.

There is also the power of yin and yang, the power of life and death contained in the 'Dead Soul Bone' and 'Xi and Jade', Bai Ye must be carefully adjusted, so that they can be coordinated accordingly, there can be no strong one side and one weak, let alone a corresponding connection error, the slightest problem will ruin the improvement of the natal spirit treasure embryo!

Therefore, although he had already been experienced, Bai Ye was still careful to deal with it, and it really took nearly half a year to deal with the three kinds of immortal spirit materials and smoothly integrate them into the natal spirit treasure.

And with the integration of these three kinds of immortal spirit materials, the embryo of the White Night Natal Spirit Treasure was also successfully promoted, and it advanced from the spirit treasure embryo to the immortal artifact embryo!

Moreover, in terms of embryos alone, his natal spirit treasure embryos are definitely the top among immortal weapons.

After all, the material of most immortal weapons is just a spiritual material at the level of human immortals, compared to his main material, which is already an earth immortal spiritual material, it is already much worse in terms of material.

Now, the embryo hardware is ready to meet the requirements of the White Night.

Then the next step, what Bai Ye has to do is to first unite the nine pairs of 'Yuan Ban' in the Natal Spirit Treasure and turn them into an immortal forbidden!

Yes, synthesize an immortal forbidden, not a pair of immortal forbidden!

Since Bai Ye sacrificed and refined the natal magic weapon and embarked on the path of cultivation, among the natal magic weapons, the prohibitions are all opposite to each other, and there are two sets of forbidden inheritances imprinted in them.

They are the 'Yin-Yang Mirror' forbidden inheritance and the 'Kunlun Mirror' forbidden inheritance.

And now, his natal spirit treasure advanced natal immortal weapon, with the exploration, perception, and deduction of continuous promotion over the years, he finally has some certainty, and he has merged these two sets of prohibitions into a prohibition, and synthesized an immortal ban!

The unity of the Yuan Prohibition turned into an immortal forbidden, Bai Ye had already deduced it many times in private, and even tried a short-term unity, although he couldn't hold on to it for a long time, and it fell apart directly.

However, whether it is theory or experience, they have been fully prepared, and this time they are full of confidence, combining the nine pairs of Yuan Forbidden into a single immortal forbidden.

In the dantian of Zhihai, the natal spirit treasure hangs high, and the Yuan Ying of the white night pinched the Dao seal in his hand, and directly turned into the natal spirit treasure, and the instrument spirit returned to its place!

In order to smoothly fuse the Yuan Forbidden and turn into an Immortal Forbidden, Bai Ye's choice of the Yuan Infant to turn into a machine spirit and control it directly in the Natal Spirit Treasure will also be easier and smoother.

The next moment, the natal spirit treasure was in his Zhihai dantian, and the spiritual light bloomed, buzzing and trembling.

Nine pairs of Yuan Ban appeared on it, as if nine pairs of swimming dragons, wandering on the treasure mirror.

In the treasure mirror, countless spaces appeared, which was the effect of the 'Vientiane Empty Mirror Stone' smelting in it.

Between those countless spaces, there are immeasurable yin and yang, the power of life and death gathered in it, and the spiritual light converged like stratus clouds.

Nine pairs of Yuan Ban, there are nine pairs of swimming dragons, walking through various spaces, wandering in the power of yin and yang life and death, swallowing the power of yin and yang life and death, and accommodating the power of space.

In this continuous wandering, continuous swallowing and accommodating, the pair of swimming dragons began to gradually merge and turn into nine swimming dragons!

In the end, the nine swimming dragons, in the heavy space and layers of yin and yang spirit clouds, intersected with each other, gradually merged, and turned into a 'real dragon'!

"Groan!"

Bai Ye seemed to hear a dragon's groan, coming from the depths of the treasure mirror, from countless spaces.

The next moment, the bright fairy light erupted, in the dantian of the sea of knowledge, the natal spirit treasure immortal light was pervasive, and an immortal forbidden like a real dragon appeared on the mirror, wandering through, blooming fairy light, compatible with the immortal artifact embryo!

Natal Spiritual Treasure, successfully advanced to this Natal Immortal Weapon!

The whole process, although a little complicated, was much simpler and easier than Bai Ye had expected at the beginning.

There was no mistake, no accident, it was very smooth, once it was successful, nine pairs of Yuan Forbidden were fused into an immortal forbidden, and the natal spirit treasure was successfully advanced to this life immortal weapon!

Surprisingly easy success!