After reflecting on where his problems were, Gu Yu began to retreat.

At the beginning, because the injury was not healed, he couldn't improve his cultivation, so he kept absorbing aura to strengthen his body, firstly, to speed up the recovery from the injury, and secondly, to improve the refining body and prepare.

As for the Soul Eater Mother Worm, there is no hurry to upgrade the level at present, its most important job is to purify the Yin Souls in the Ten Thousand Soul Banners and condense them into soul crystals, which is a huge job, because in the future, not only Gu Yu and the mother worm will need soul crystals, but also the newborn Soul Eaters will also need soul crystals.

Soon, all the Qi Refiner Yin Souls in the Ten Thousand Soul Banner were purified, and the mother worm made every effort to purify the Alchemist Yin Soul, in Gu Yu's thoughts, it was to purify all the Yin Souls in the Ten Thousand Soul Banner, and he would not be reluctant at all.

Half a month later, Gu Yu's injuries healed, and he went back to accompany his mother for a day, and then came back to retreat.

This time, he planned to advance to the alchemist, maybe the foundation was not strong enough, but Gu Yu felt that he could rely on the amount of soul power to achieve the effect of qualitative change.

He took out the Realm Breaking Pill given by his father, and swallowed it without hesitation without any consideration.

He intends to rush forward with indomitable courage and without the slightest hesitation.

Then he took out ten dark soul crystals and lined them up in front of him, these were the soul crystals condensed by the alchemist's yin soul, and each soul crystal contained the soul power of the alchemist.

Gu Yu also didn't hesitate, picked up the first soul crystal, quickly devoured and absorbed it, and after a while, he immediately felt that the sea of qi was packed and about to explode.

Before this, due to his foresight, he had never devoured the soul power of the alchemist, and now it was the first time he tried it, and it turned out that the soul power of the alchemist was really beyond imagination, and he almost couldn't resist it.

Next, the medicinal power of the Realm Breaking Pill was released, and the power of the alchemist's soul raged wildly in the sea of Gu Yu Qi, and the pain far exceeded the pain suffered by the physical body.

If it were someone else, he would either die with an explosion in the sea of qi at this moment, or faint in pain, but Gu Yu was different, the body refining cultivation of the Silver Body Refining Skin Realm gave him the ability to endure dozens of times more than others, so Gu Yu's sea of qi did not explode, nor did he faint in pain.

Gu Yu gritted his teeth, and after enduring the first wave of pain, he began to slowly proceed according to the method of breaking through the alchemist.

Alchemist, as the name suggests, is to condense the soul qi in the body of the alchemist into Dan.

However, the alchemist did not condense the Yuan Qi into Dan at the beginning, that was what the Second Realm Ning Dan Realm had to do, and now what Gu Yu wanted to do was to transform the Yuan Qi into various shapes, as the name suggests, the Transformation Realm was to transform the Yuan Qi into various shapes. In other words, Gu Yu solidified the liquid-like Yuan Qi in the sea of qi, and also had the ability to change into a thousand shapes.

What Gu Yu is doing now is to solidify the soul qi according to the purported best way of condensing the vitality provided by Gu Wuji.

Gradually, an hour passed, and the pain in the sea of qi gradually lessened, but Gu Yu felt that his process was only a third of the way through, and if he continued, he would definitely fail because of the inability of the sea of qi to follow.

Gu Yu immediately made a decision, gritted his teeth, and immediately picked up another soul crystal to devour and absorb it, and after a while, the pain in the sea of qi doubled, making Gu Yu can't help but scream.

But Gu Yu's sea of qi did not explode, that is, Gu Yu could still withstand it, so Gu Yu endured the pain and continued to cultivate.

Time passed little by little, and the soul power provided by the two soul crystals was enough for Gu Yu to complete his subsequent cultivation. However, at the last moment, when he was only about to kick the door, Gu Yu felt that his energy was insufficient, and at this time it was even simpler, and he could take out another soul power to devour it.

Finally, as all the soul qi in the sea of qi was solidified, it was announced that Gu Yu had successfully broken through and officially became an alchemist.

In fact, in retrospect, the process was quite simple, Gu Yu endured the pain and succeeded step by step. But if you think about it carefully, you can see the difficulties, the most important thing is Gu Yu's strong body refining physique, in order to resist the power of the soul that wants to explode, this can only be done by Gu Yu, if it is replaced by someone else, in the end, only the fate of exploding and dying.

After advancing to the alchemist, Gu Yu breathed a heavy sigh, once this major level is passed, it will be easy in the future, as long as you cultivate step by step, you can advance step by step, and you don't have to worry about encountering too many obstacles.

Next, Gu Yu continued to retreat, he only cultivated to reach the alchemist, but also to cultivate the alchemist martial arts given to him by his father, and even more to make the refining body more advanced.

At the same time, the newborn Soul Eater Worm also had to be upgraded in level, and now there were more than eight hundred newborn Soul Eater Worms left, and Gu Yu abandoned some of the less powerful species, leaving behind even more powerful ones. After some screening, he selected five hundred newborn Soul Eaters and let them advance.

From the bloodline inheritance of the mother worm, the promotion of the newborn soul eater worm is also very simple, just provide a large amount of soul power for them to devour and absorb, with the support of enough soul power, they will advance one level after another, and it will take three months to all advance to the top level of the fierce realm, which is equivalent to the level of the qi sea realm qi refiner.

In this regard, Gu Yu is not in a hurry at all now, there is time to wait.

In the following days, after the mother worm kept purifying and condensing all the alchemist yin souls of the Ten Thousand Soul Banner into soul crystals, there were only five alchemist Yin souls left in the Ten Thousand Soul Banner.

The mother worm did not attack the Yin Soul of the Divine Refiner, because there were too many uncertain factors, and besides, his level was not high, he was still at the middle level of the Demon Realm, which was equivalent to the level of the Alchemist of the Third Realm Transformation Dan Realm.

After being idle, the mother worm began to devour a large amount of soul power to improve its own level, as the level increases, it becomes more and more difficult for the mother worm to advance, but he is not a big realm breakthrough now, and the breakthrough of the small realm mainly depends on the strength of the soul power.

As a result, the female worm devoured the soul crystals of nearly a hundred alchemist yin souls, raising the level to the top of the evil realm, and it was still at its peak.

Nearly a hundred alchemist Yin Soul Soul Crystals, this price is too great!

But when the female worm was promoted, Gu Yu assessed the strength of the female worm and immediately knew that the price was too worthwhile. It can be said that if the Soul Eater Mother Worm had advanced to the top of the Evil Realm before encountering Long Weiming's ambush, then he and the Mother Worm would definitely be able to defeat Long Weiming and the others by cooperating with those low-level newborn Soul Eater Worms.

From this, it can be seen how terrifying the strength of the Soul Eater Mother Worm has become!

Next, the Soul Eater Worm Mother Worm did not continue to advance, although Gu Yu really wanted the Soul Eater Worm Mother Worm to advance to another level and reach the level of the Barbarian Realm, but he also knew that the Alchemist Yin Soul was not enough for the Mother Worm to break through the bottleneck, unless it was the Soul of the Soul Refiner, and it was not one.

Gu Yu thought for a moment, and temporarily gave up purifying the Yin Soul of the Divine Refiner in the Ten Thousand Soul Banner.

He felt that the meal had to be eaten in one bite, and he couldn't eat too much at once, and what he needed most now was to consume the food that he had already eaten.