These four demon gods usually do not interfere with river water, and each occupies a cave blessed land in the Frost Purgatory to cultivate, and when the Frost Purgatory is in crisis, they also appear together.

Although the Yin Yang Dao people are stronger than a single demon god, after all, he is only one person, and the three demon gods joined forces, so they temporarily dragged him down, and the remaining one purgatory demon god found Wu Yi.

Although Wu Yi's current combat power has reached the fifth rank of mythology, it is still a little insufficient to see the real demon god, so Wu Yi used the power of the God of War statue to merge with the God of War statue again and start a big battle with the Purgatory Demon God.

After the City of God of War was upgraded to the third order, all the god-given buildings in it were also upgraded, and the statue of the God of War was also upgraded, and its effects were improved.

After Wu Yi merged with the God of War statue, his strength bonus was even more, and he was directly improved to the level of the sixth grade of mythology, and the gap with the Purgatory Demon God narrowed a lot.

After Wu Yi's attributes were improved, he urged the Rune Pyramid to deal with the Purgatory Demon God, and under the combined force of the two, the Purgatory Demon God could only passively resist the crushing of the Rune Pyramid.

Wu Yi's combat power has reached the sixth rank of mythology, and the grade of the rune pyramid has reached the eighth grade of mythology, although Wu Yi can only exert part of the power of the rune pyramid, he can still compete with the demon god of purgatory.

This is the role of the peerless artifact, which can help the master to leapfrog the enemy.

Under the weight of the rune pyramid, the Purgatory Demon God was under great pressure, and it was difficult to even escape, let alone deal with Wu Yi.

According to the breath of the Purgatory Demon God, Wu Yi found a group of demon shadows that were quite closely related to him in the Infinite Demon Shadow, which was the luck of the Purgatory Demon God.

The Demon God of Purgatory was born in the Frost Purgatory, and it grew up as a Demon God here, and it was favored by the luck of the Frost Purgatory, which can be said to be blessed by the will of the Frost Purgatory. It's going to be so strong.

At the beginning, after the three demon gods of the dark hell invaded the human world, they would be sealed by a human one by one, because they left their 'home field', and they would be rejected by the will of the world in the human world, and their state would be continuously weakened, and they would eventually end up like this.

Wu Yi found the luck corresponding to the Purgatory Demon God. He urged the Heaven Slaying Demon Sword and directly killed the demon shadow represented by this group of luck.

The Infernal Demon God felt as if he had lost something particularly important, and he had lost that close connection to the Frost Purgatory.

Although the Slashing Qi Luck could not directly weaken the combat power of the Purgatory Demon God, the impact was very far-reaching, and the Purgatory Demon God felt much more difficult than before under the crushing of the rune pyramid, and the speed at which it absorbed the Frost Purgatory Yuan Qi seemed to have slowed down a lot.

Wu Yi continued to move, and then slashed and devoured the luck of the three demon gods who fought against the Yin Yang Dao people, and the Heaven Slashing Demon Sword thus unlocked the second layer of seals.

After the luck of the three demon gods was destroyed. They had a similar feeling to the Purgatory Demon God, and they were originally very reluctant to hold back the Yin Yang Dao people.

After this incident, the Yin Yang Dao people immediately had the absolute upper hand and killed the three demon gods one after another.

Seeing that there was nothing to do, these three demon gods chose to flee from the wind, they didn't have to risk their lives for a nest, and with the strength of the Yin Yang Dao people surpassing them, it was possible to kill them.

The three demon gods were the first to flee. forced the Purgatory Demon God to a dead end, with the help of the Yin Yang Dao people. Wu Yi used the rune pyramid to suppress the Purgatory Demon God, pressing him into the deepest part of the rune space.

Inspired by the dark world, Wu Yi sealed the demon god in the depths of the rune space, extracted his essence blood with the blood essence stone, and extracted its energy with the rune pyramid, using the Purgatory Demon God as a large battery.

Wu Yi was ready to squeeze out the value of the Purgatory Demon God. If you kill it again, you will gain as much soul energy as the soul crystal.

Having solved the threat of the four demon gods, Wu Yi was finally able to use the power of the Heaven Slashing Demon Sword at will, and Wu Yi found a demon shadow in the infinite demon shadow that was pregnant with the descendants of the demon god.

This demon shadow has an incomparably cold aura. It was even more terrifying than the Demon God of Purgatory and other Great Heavenly Demon Level, it was the breath of an ancient Demon God like the Black Heaven Demon God in the Dark Hell.

Wu Yi had judged that the reason why this Frost Purgatory had become like this was because the body of an ancient demon god was sealed in this purgatory, and now seeing this demon shadow, Wu Yi was even more convinced of this.

Wu Yi used the Heaven Cutting Demon Sword to capture the demon shadow of the descendant of the Demon God, and the Heaven Cutting Demon Sword was extremely restrained from the combination of this kind of luck and the vitality of heaven and earth, and it almost didn't take Wu Yi any effort.

Then, relying on his breath, Wu began to go deep into the depths of the Frost Purgatory, looking for the sealed body of the Demon God.

With the help of the Yin Yang Dao people, Wu Yi passed through the coldest 10,000-year-old iceberg in the Frost Purgatory, and went deep into the Purgatory River of the Frost Purgatory.

Ordinary rivers freeze below freezing, but this river of purgatory, when the temperature drops to hundreds of degrees below zero, close to absolute zero, still remains liquid, and its material is extremely special.

According to the Yin Yang Dao people's guess, its material may have been formed after the essence blood of the ancient demon god with the frost attribute was diluted, and its temperature was terrifyingly low.

In the depths of this river of purgatory, Wu Yi found an Ice Sky Demon Crystal, which was the crystal on the forehead of the Ice Sky Demon God, and it was one of the sources of power of the Ice Sky Demon God!

This Ice Sky Demon Crystal is similar to the Black Sky God Wing, it is one of the most important parts of the body of the Ancient Demon God, and it is precisely because of this body that the environment of the entire world will change like this.

After Wu Yi got this Ice Sky Demon Crystal, he teleported it to the Demon Lord Avatar along with the Demon Shadow, and let the Demon Lord Avatar devour it.

The Demon Lord incarnation has infinite demonic nature, he easily devoured and digested these two things, and there was also an extra Ice Sky Demon Crystal on his forehead, which could use the Frost Demon Skill.

The integration of these two items has greatly improved the strength of the Demon Lord incarnation, and he has broken through to the realm of the Mythical Five Grades in one fell swoop, and at the same time, his own potential has also been greatly improved.

The incarnation of the demon lord then mastered the transformation ability of the Ice Sky Demon God, and Wu Yi's demon god transformation also added a new demon god form, so that Wu Yi had seven ancient demon god transformation forms.

The Demon Lord incarnation also discovered that the Netherworld Hell should also be affected by the power of an ancient demon god named the Netherworld Demon God, and the environment would change to its current appearance.

After incorporating the Ice Sky Demon Crystal, the Demon Lord Avatar's attainment of the power of the Frost System has been greatly improved.

The Nether Wolf also uses the power of frost, so with the help of the power of the magic crystal, he found the group of Nether Wolves in a Nether Cave in the Netherworld. (To be continued......)