"Hmm, what is this?" Night Feather's spiritual sense swept slightly, feeling as if there was a soul inside, although the breath was not very strong, but Night Feather could be sure that there was indeed a soul in that 'flag'.

"My soul banner is similar to his, but I haven't understood the cultivation method of the soul flag, so I haven't used that soul flag. ”

Ye Yu looked at the soul devouring banner in the palm of Guo Tianyou's hand, and unconsciously touched the Xuanhuang ring on his hand, there was his storage bag in the ring, and his soul flag existed in it.

"This is the secret technique of our clan, called the 'Soul Eater Banner'! It is said that if there is a formation inside, the Soul Eater Banner will be a movable formation, and the user itself can also impose a ban on it to achieve killing people in the invisible realm!"

After the young man finished speaking, he patted his chest, the Soul Devouring Banner is the most powerful forbidden technique of their undead clan, and it is said that if you cultivate to the extreme, you can devour the soul of the sky and devour the heavens!

I have to say that the young man's words moved Ye Yu, and what Ye Yu was tempted by was not that the killing was invisible, but that the Soul Devouring Banner could be set up.

If what this young man said is true, then for Ye Yu it is tantamount to a tiger with wings, and besides, the spell caster can also impose a ban on it, it is simply a supernatural power against the sky, if it is a battle at the same level, with this flag in hand, then who are you afraid of?

Coupled with the Xuanyang Bow and the Martial Saint Nine Chopping Some hole cards, even if it encounters the middle stage of the Broken Dan, Ye Yu has the confidence to fight.

Night Feather didn't know why this young man insisted on worshipping him as a teacher, although he had no intention of accepting apprentices, but he was indeed tempted by the Soul Eater Banner.

"Immortal, have you thought about it?" the young man asked cautiously.

"I have to say, what you said is very heartwarming to me, but I won't take in random apprentices, but we can make a deal. "Night Feather has already treated this boy as an adult, and directly ignores his age.

"Deal?" the boy was a little confused.

"Yes, you told me the cultivation method of the Soul Devouring Banner, I taught you to open up the sea of aura and condense the aura, I see that you haven't successfully opened up the sea of aura yet, right?"

Although there was a faint fluctuation of demonic qi on the young man's body, Ye Yu could be sure that this young man definitely did not open up the spiritual sea, but the zombie clan originally disdained the way of cultivators, but if Tianyou insisted on apprenticeship, maybe the other party's purpose was to cultivate.

"Well, yes. ”

The reason why the young man wants to be so eager to apprentice is indeed that he has not opened up the spiritual sea, not because his talent is not enough, but because there is no one to guide him, just like a peerless sword, if he does not meet a good swordsman, it can only be used to chop wood in the hands of ordinary people.

"What's your name?" Ye Yu asked knowingly as she looked at the young man.

"My name is Tianyou, and my grandfather's surname is condition. The boy said slowly.

"So, immortal, can I call you master?" Guo Tianyou looked at Ye Yu with some hope and asked sincerely.

"My name is Night Feather, and it's just a deal between us, a deal that you and I will, just like the deal I made with your grandfather before.

If I do my best and get lucky enough to pass that test in Demon God City, I'll help you undead free yourself from that curse. ”

Ye Yu looked at Guo Tianyou with flat eyes and said directly. As for why Guo Tianyou has a life soul in his body, Ye Yu doesn't want to ask more, as he said, it's just a transaction, that's all.

It's not that he is cold-blooded and ruthless, but Ye Yu thinks a lot, there was a powerful demon emperor passing through here back then, but why didn't he leave the law decision for cultivation?

It can be seen that there are still many secrets in this place that he does not know, and he originally did not plan to teach the Fa here, but the Soul Eater Banner is indeed tempting to him, so he will agree to this deal.

Moreover, Ye Yu pays attention to doing what he wants, where he has the leisure to take care of other people's affairs, as long as he doesn't come to calculate him.

Nothing was said all night.

As soon as dawn broke, Night Feather called Guo Tianyou over.

In addition, Tianyou didn't sleep all night, first of all, he engraved the cultivation method of the Soul Devouring Banner on a stone slab, which recorded in detail how to cultivate this flag, as well as the details that need to be taboo, all marked one by one, and it can be said that there is no omission.

Looking at the stone slab in his hand, Ye Yu's spiritual sense swept away, and suddenly those cultivation methods existed in his mind, as for whether it was true or false, he had to cultivate for a period of time before he could be determined, especially the realm divided above made Ye Yu a little surprised.

The Soul Eater Banner is divided into three realms, only the first realm is divided into four small realms, and the other two realms have only one layer.

There are three realms of soul devouring flags, soul refining, soul extraction, and locking gods.

Soul refining is the basic requirement for cultivating this technique, and only after the soul refining is completed can the second heaven be carried out, and the soul can be extracted.

Soul extraction is the soul of a living person who is removed from the body and sealed in the flag, which can be described as extremely domineering.

Lock God, according to what is said on the stone tablet, the Demon Howling Heaven in ancient times had cultivated to the realm of Lock God.

The lock god can block the original god of the cultivator of the same level, and then seal it in the flag, becoming the demon soul in the flag, and the soul puppet who only knows the battle. This is very similar to the ghost banner in his hand.

According to Guo Tianyou's account, Demon Seven had already cultivated to the first heaven of the Soul Devouring Banner, refining souls. The third layer of soul refining, soul transformation.

The fourth layer of the First Heavy Heaven is the Soul Eater, which is the soul of the enemy that can be killed and then devoured and sealed in the flag, becoming the soul of the hat.

After recording everything recorded on the slate in his mind, Ye Yu put the slate into the Xuanhuang Ring, and then turned to look at the eight-year-old boy in front of him, is this really an eight-year-old child?

Night Feather shook her head and said nothing.

Ye Yu's eyes moved slightly, the corners of his mouth showed a deep groan, and after a while, he said to Guo Tianyou: "This technique, Ye Mou will accept it, since it is a transaction, then from now on, I will stay here for half a month."

I won't leave this place until you successfully open up the spiritual sea, and after half a month, if you can't condense the spiritual energy and open up the spiritual sea, then you can't blame me. ”

After Guo Tianyou heard Ye Yu's words, he first lowered his head and said nothing, and then, Guo Tianyou raised his not very tall chest and patted it, saying, "Master don't worry, half a month is enough." ”

Besides, Tianyou still insisted on calling Master Ye Yu, for this point, Ye Yu didn't go into any more verbosity, he had already made it clear that as for how this child wanted to be called, it was none of his business, he just needed to teach the other party how to cultivate.

As for what Guo Tianyou said, it can be half a month, whether he is confident in himself or in Ye Yu, it is unknown, perhaps, both.

Ye Yu took Guo Tianyou to the bottom of the stone wall where the Demon Emperor carved his body, and then taught him how to condense the spiritual energy and how to open up the spiritual sea, and after explaining all the details, Ye Yu stared at the Demon Emperor carved body alone and was silent.