The book also ranks various Gu levels according to their abilities, which are divided into nine levels, and the higher their level, the more powerful they are. Each level is divided into four levels, namely: Initial Gu, Master Gu, Zun Gu, and King (Emperor) Gu.

For example, [Rotten Bone Gu] is a fourth-level Gu. Elementary ~ Rotten Bone Initial Gu, which can make people feel like a boneless body, paralyzed for decades; One turn~ Rotten Bone Master Gu, which is equivalent to a fifth-level corrosive Gu primordial Gu, can make people within a year, all their muscles and bones be corroded by Gu worms; The second turn ~ Rotten Bone Venerable Gu is equivalent to the sixth-level corrosive Gu Initial Gu, which can make people within half a month, and all the flesh and bones will be corroded by Gu worms; Three Turns ~ Rotten Bone King (Emperor) Gu, which is equivalent to a seventh-level corrosive Gu primordial Gu, can make people's muscles, bones, flesh and blood all be invaded and devoured by Gu worms within twelve hours. And the king (emperor) Gu can rely on the power after devouring it and then return to the master.

The King (Emperor) Gu is the top of this kind of Gu, that is, the king.

Corrosive Gu can be described as the most poisonous Gu for monks. Because the Gu cultivator's Gu was refined by the monk's aura, most of the corrosive Gu not only devoured the flesh and blood, but also devoured the monk's soul. What's more, they specialize in devouring souls, and then control the body of the person or thing that is being devoured to make them puppets.

Seeing this, Xu Liyue couldn't help but sigh, fortunately, the Rotten Bone Gu would not devour the soul, even if Dao Shang died because of this, his soul could still enter the six realms of reincarnation.

On the second day, Xu Liyue wore Ye Chen's childhood robe and tied a high ponytail. When Gu Xun saw it, he seemed to want to say something, but he just squirmed at the corners of his mouth and didn't say anything. However, when Bai Gu returned to Yizhu Peak after purifying the turbidity, Gu Xun asked people to send two sets of brand new little girl's clothes, which fit Xu Liyue's body, and Xu Liyue accepted it with a deflated mouth.

For the next few days, Xu Liyue was doing the same thing. I got up early and ate the ten pins of soup sent by Ye Chen, and then Gu Xun took her to Bai Gu to cleanse the turbidity, and then went back to the demon realm to read, and then continued to eat the ten pins of soup, then continued to read, and then continued to eat, and then meditated all night to attract spiritual energy into the body.

It's just that Xu Liyue introduced spiritual energy into his body for a few days and found a very strange phenomenon. No matter how much aura she introduced into the Purple Mansion from the outside world, an equal amount of chaotic qi would inexplicably burst out of her body and mix into the aura. But she didn't feel any discomfort, and she didn't know if it was the same when other people were cultivating and inducing qi into their bodies. But no one could be found to ask, not even Ye Chen, who would not be able to tell her. She asked the fat bean sprouts and Lingchun in the demon realm, and the two guys said that it was okay, and the chaotic qi was her body-protecting qi. She thought about it, it seemed that on the day she opened the Purple Mansion on her own, it was this chaotic qi that helped, maybe it was only with the full spiritual veins.

The remaining five hundred Gu purifications, I don't know if it was because those primordial Gu were swallowed by Ling Chun, or for other reasons, and there was no more pain or discomfort. The daily meditation and pranayama for the past five days also allowed Xu Liyue to find the trick of attracting spiritual energy into his body, even though the entire purple mansion still looked empty, but Xu Liyue could already feel that there was a spiritual energy swimming in his body. This aura is improving her muscles and bones little by little.

On the fifth day of the Hundred Gu Purification, Gu Xun actually told Xu Li that Yue Dao was still awake. Then he informed Xu Liyue that he used the Twin Cry Rotten Gu to temporarily suppress the Rotten Bone Gu, but the result was very unsatisfactory, and at most he had to refine the Detoxification Gu for an additional fifteen to twenty days.

In other words, from the time Dao Shang was in the Gu to the day he woke up, he still had more than twenty days to live at most.

Although Xu Liyue felt a little congested after learning the news, she didn't know what Gu Xun told her to do. She became a Gu cultivator, refining and detoxifying Gu, wasn't it all in his hands?

Finally, on the seventh day, the Hundred Gu Purification was completed.

On the second day, as soon as Gu Xun came, he used his spiritual power to probe Xu Liyue's body, and Xu Liyue only felt a cold breath from the pulse of her wrist, burrowed into her body, and then wandered around. However, the chaotic qi in her body ran out again, following Gu Xun's spiritual power all the way, preventing his spiritual power from detecting that Xu Liyue had already opened the purple mansion.

Xu Liyue had already finished reading "The Return of Gods and Demons", and he also knew that a monk in the Jindan stage, if he used his aura to probe into her body, it would be easy to find that she had opened the Purple Mansion and had reached the initial stage of qi gathering. But she couldn't resist, she was just instinctively afraid, and this chaotic qi didn't need her to mobilize at all, so she naturally followed her thoughts.

After probing Xu Liyue, Gu Xun just frowned suspiciously, and looked at Xu Liyue in confusion. Although Xu Liyue didn't know what it would be like to encounter the chaotic qi when Gu Xun's spiritual power probed her body, she knew that Gu Xun should not have noticed that she was already at the beginning of Qi Gathering.

That's enough, it seems that the chaotic qi is really her body-protecting qi, and it is more spiritual than the aura introduced into the Purple Mansion, and it will actually follow her thinking independently.

After thinking for a moment, Gu Xun just said lightly: "You rest for a while, and I will take you to lead Gu into the body later!" ”

Xu Liyue nodded, closed his eyes and pretended to sleep.

In fact, the meditation and pranayama in the past few days also let her know why these immortals can stay awake and be so energetic. The reason is that when the qi is introduced into the body, the aura circulates in the meridians for several weeks, and it is already gradually improving the monk's physique. It is not only to make the body lighter and lighter, but also to strengthen the muscles and bones, and quench impurities.

After noon, Gu Xun took Xu Liyue to the back mountain of Yuxian Sect.

But what Xu Liyue saw in front of him was obviously a vast sea of clouds, and at his feet was the cliff of the Fire Immortal Mountain, but after Gu Xun's right hand pointed at the colorful light pattern, a light pattern curtain wall appeared in front of him.

There is actually an enchantment here, and after the enchantment, it is the "Gu Tomb" that Gu Xun said. And this enchantment was built over the cliff, Xu Liyue couldn't help but sigh, the immortal's technique was really magical!

After opening the enchantment, Gu Xun did not rush to take Xu Liyue into the enchantment, but raised his right hand with a sword finger and pointed directly at Xu Liyue's eyebrows, and then closed his momentum after one o'clock. After a pause, Gu Xun said, "'Gu Mound' is the secret place of my Yu Immortal Sect, which has been built since 10,000 years ago. Traditionally, only Gu cultivators have been allowed to enter and bring out the Gu seeds needed in my door. I put a Gu Attraction Spell on you, and after you enter the Gu Tomb, with your special physique, you will attract the approach of various Gu species. You don't have to be afraid, this Gu Attracting Spell will only attract the Gu seeds I need into your body, you just need to keep walking forward, through the swamps and woods, and stay in the desert. Just walking in it, you have to beware of falling into swamps and quicksands. I'll let you stay in the Gu Shrine for an hour, and after an hour the barrier door will open again, and if you don't come out after an hour, I won't be able to save you. ”

Xu Liyue's heart jumped, no wonder! It turns out that it is not terrible to become a Gu cultivator, what is terrible is to enter it. In this way, it seems that there are not many Gu cultivators who can come out well after entering, otherwise Gu Xun's face would not be so solemn at this time. But they can't enter unless they are Gu cultivators, presumably these Gu are not good either, and they may even be more difficult to deal with than demon beasts or something. It's no wonder that the Gu cultivator should be allowed to undergo seven hundred Gu purifications, but I am afraid that it is also to paralyze these Gu and make them feel that the Gu cultivator they enter is the same kind, so that they will not harm the Gu cultivator. And the swamp and quicksand that Gu Xun said were really a bit beyond her expectations.