Mo Yan turned around suddenly, only to see a handsome young man in a dark golden robe standing in front of him, but he didn't have any powerful qi in his body, like an ordinary person.

But he understood that if he was really just an ordinary person, it was impossible to appear behind him silently. He instantly activated the technique of the overlap of the two realms, and the surrounding environment suddenly changed, and everyone appeared in a gloomy cave world.

However, in the blink of an eye, Mo Yan's face suddenly changed, because he found that the environment in front of him had changed back to before the main hall of the Nine Shadows Imperial City.

Mo Yan's face became solemn, a long black knife appeared in his hand, and he said coldly: "Who are you?"

After he recovered the memories of his previous life, he obtained several secret secrets buried in advance, and he had completely inherited the Nine Demon Emperor's supernatural powers, and he could already be regarded as the real Nine Demon Emperor. Although his cultivation realm has only recovered to the peak of the emperor, his Dao comprehension is at the quasi-emperor level, so even the so-called people in the upper realm are not his opponents. However, the feeling that this person gave him was faintly unfathomable, even the Nine Demon Emperor at his peak was inferior.

At this time, the handsome young man smiled and said, "One of the eight demon lords of the demon world, the demon lord of Youhe, the two people you injured before, or the one you just swallowed, are all the demon marshals under me. If they regain their peak cultivation, they are all equivalent to the peak of the Holy Emperor of this realm. Now, if you kill one of my men, you will either serve me in his place, or you will die!"

Before the words fell, Mo Yan suddenly felt a powerful and incomparable pressure, which was a terrifying pressure that far surpassed the peak of the Holy Emperor, and he trembled all over, as if he was about to be crushed into pulp at any time.

However, the Blood Demon Ancestor and the Black Demon General next to him didn't feel anything abnormal at all.

The Demon Lord of the Hidden River said: "Let me ask you again, to descend or not to descend?"

The so-called hero does not suffer immediate losses, and he has no resistance to surrender.

Therefore, a smile appeared on the corner of Mo Yan's mouth and said: "Descend, of course descend! However, I don't know something, your strength is so strong, do you still need me?"

The Demon Lord of the Hidden River withdrew the power of the Yuan Shen and said, "Yes, if it is in the Demon Realm, with your cultivation, even if you want to take refuge, it depends on the mood of this Demon Lord." However, now that I am in the human world, my subordinates have not fully recovered their cultivation, so let's make do with it first. Now, I want you to step up to unify the underworld, is there a problem?"

Mo Yan immediately shook his head and said, "There are eight great ghost emperors in the underworld, and the ten hall Yan monarchs, all of whom are peak powerhouses of the Holy Emperor, with my current cultivation, it is extremely difficult to defeat any of them, and it is even more delusional to want to unify the underworld!"

The original Nine Demon Emperors were also one of the strongest in the underworld, one of the Nine Great Ghost Emperors, and the same name as the other eight Great Ghost Emperors. But now Mo Yan's cultivation has not returned to the peak state of the Nine Demon Emperors, and he can only barely hold on to the foundation. If his true situation is leaked out, the Nine Ghost Realms will immediately be divided by the other Eight Ghost Emperors.

The Demon Lord of the Hidden River smiled: "Since I let you do things, I will naturally support you!"

After he finished speaking, he bent his fingers, and a powerful black demonic qi quickly injected into Mo Yan's body.

Mo Yan's face changed, and he hurriedly resisted, obviously worried that there was fraud in it. However, the Demon Lord's demonic aura was so powerful that he was powerless to resist it.

And these extremely pure demonic qi did not harm Mo Yan at all, but took the initiative to integrate into Mo Yan's demon element, improve his mana, and refine his demon body.

A few minutes later, the Demon Lord of the Hidden River stopped infusing demonic energy, while Mo Yan's mana cultivation had already been raised to the peak of the Holy Emperor.

But Mo Yan didn't have half a happy look, these cultivations came from the Demon Lord of Youhe, although he can use it freely now, but if the other party wants to withdraw his skills, he can't resist it.

It's just that now, Mo Yan has no power to resist, so he has to work for the other party.

The next day, the Nine Ghost Nation gathered tens of millions of ghost soldiers and began to attack the adjacent Fire Ghost Country, all the way like a bamboo, in just seven days, it broke through hundreds of ghost cities.

On the second day, Red Flame City. The dark moon casts its pure light on the walls.

Above the city gate, the ghost soldiers and ghosts in pitch-black battle armor lined up behind the female wall, each ghost pawn had a minimum of sixth-order cultivation, the generals were all seventh-order ghost saints, and there were three people in the middle, led by a middle-aged man in red armor, who was one of the eight great ghost emperors, the fire ghost emperor, the strongest person at the peak of the holy emperor. The two black-armored generals next to him are his right-hand men, and they are also at the level of the Titled Emperor.

Two or three miles away under the city wall, the ghosts and ghosts in black armor will be densely packed and neatly arranged, and there is a black flag with the words "Nine Shadows" written in the center fluttering in the wind.

Under the banner is the core of the Nine Ghost Kingdoms such as Mo Yan, Black Lotus, Blood Demon Ancestor, and Black Demon General.

The Fire Ghost Emperor stood on top of the city gate, looked down at Mo Yan, and said coldly: "Nine ghosts, you dare to invade my city, you really have eaten the gall of a bear's heart and a leopard, and if you know each other, return the city immediately, and offer another hundred ghost cities, otherwise this emperor will kill you today and level the Nine Ghost Country!"

When Mo Yan heard this, a sneer appeared on the corner of his mouth, and he said, "Idiot talking about dreams!"

As soon as the words fell, Mo Yan had already condensed the power of the Yuan Shen and the power of the Cave Heaven, and his figure flashed in an instant, and he slapped the Fire Ghost Emperor with all his strength.

This palm condenses the vast power that is enough to destroy the ordinary Heaven Rank world, and ordinary Saint Emperor powerhouses can be killed into slag with one palm.

However, the Flame Ghost Emperor did not have the slightest intention of relying on the law of time and the Great Dao of Space to dodge, and he also slapped it with all his strength.

The two of them were in the air between the two armies, their palms touching, and a jet-black Yin power and a crimson Yang power collided fiercely.

The aftermath of their battle evolved into half overcast to cold, half scorching winds sweeping in all directions. Many of the ghost pawns who couldn't dodge were directly frozen into ice sculptures, or melted into flying ashes.

The Blood Demon Ancestor's face changed, and he said: "It is rumored that the Fire Ghost Emperor is a natural fire ghost body, and his cultivation is the Chiyang Ghost Emperor Technique left over from the ancient period.

The Black Demon General also nodded, a little worried in his heart, in case Mo Yan was defeated, they would have to flee.

After a while, the Flame Ghost Emperor's face suddenly changed, and he said, "Pure Yang Qi and Blood! You are not a ghost, you are a living person in the Yang Realm!"

Although there are many races of beings in the underworld, they are completely different from the people of the yang world, and it is impossible to condense pure yang qi and blood.

Mo Yan said indifferently: "Yes, do you want my physical body? As long as you win against me, this physical body is yours!"

After he finished speaking, he withdrew the majestic demon yuan that condensed his palms, and the supreme yang mana in the body of the Fire Ghost Emperor was like a heavenly river pouring down, rapidly pouring into the meridians and acupoints in his body, and was swallowed by a powerful demon element. This is the Emperor-level Immortal True Demon Skill that he obtained from the Nine Demon Emperors, containing the Devouring Dao, and he is the best at refining the Alien Vitality.

"Devour the Great Avenue!"

The Fire Ghost Emperor's face changed drastically, and he wanted to push Mo Yan away.

Mo Yan suddenly changed his moves, his hands tightly grasped the palms of the Fire Ghost Emperor, and a powerful Yuan Shen power turned into a magic sword and slashed into his sea of knowledge.