This secret method of condensed demonic energy into wings, the wings condensed by the two wings are called the Prison Demon Twins. It is a special secret method that only the demons in the Demon King’s Hall are qualified to practice.

After condensing the wings of the demons released from prison, the strength of the demons can be instantly improved in a short period of time. Another function of the wings of the demons is to allow the speed of the people who condense the wings of the demons released from prison to suddenly double!

The demon envoys in the Demon King Hall sneaked into the demon clan and secretly won over the demon kings of the demon clan, and they must need some life-saving means. The two wings of the Prison Demon are the secret techniques taught to them by the Demon King Hall in order to save their lives.

Once the demon envoys in the Demon King Hall encounter an extremely powerful enemy, they can immediately condense the demons' wings out of the prison. At that time, these demon envoys can choose whether to use the power of the demons' wings to kill the enemy, or to escape immediately with the terrifying speed of the demons' wings.

Originally, facing someone like Song Li who had not even reached the peak of a demon general, Xin Yuan did not want to condense the wings of the Prison Demon. After all, every time he used the secret technique to condense the wings of the Prison Demon, he needed to use some very precious pills to recover the trauma he suffered in his body.

But just now, when he fought with Song Li, he suffered a considerable loss at Song Li's hands, but then Song Li didn't even give him the chance to escape, which completely aroused Xin Yuan's anger.

At this time, Xin Yuan no longer cared about the consequences of using the secret technique to condense the wings of the demons out of the prison. His only idea now was to use the power of the wings of the demons to kill Song Li. Only by killing Song Li can he calm the anger in his heart. As for the price to be paid for using the secret technique, Xin Yuan no longer considered it at all!

"Go to die for me!" Xin Yuan stepped on the void, his body suspended in the air, and shouted suddenly in anger, holding his right hand with a low grip, and raising it up fiercely.

The ground where Song Li was located suddenly shaking wildly, and the ground was constantly shattering, and more than a dozen black light columns burst out from the ground around Song Li like a huge cage, forming a huge cage, completely trapping Song Li in it.

These black light columns gathered together in the air, completely forming a huge cage. Not only did they block all the retreat routes around Song Li, but there was no room for Song Li to escape.

The moment the black cage was formed, Song Li felt a bit cold and trembling coldness, which instantly filled the entire black cage. This cold air broke through the protective true energy condensed by Song Li and began to drill into Song Li's body. After the cold air entered his body, even the blood in Song Li's body seemed to be frozen. Even the flames burning on the Red Fire Dragon Spear in his hand were completely extinguished by the cold air.

"How is it? You didn't expect me to have this trick, right? If you weren't aggressive just now, maybe I could let you live a few more days, but now you have forced me to even use the secret technique, don't blame me for not showing mercy!"

Seeing Song Li being trapped in a black cage, Xin Yuan said with a grim smile on his face. This black cage was formed by the power of his urging the wings of the prison demon. Not to mention Song Li, a guy who has not even reached the peak of the demon general, even if a strong man in the Great Advancement Realm of the Demon King Realm is trapped in it, he will not be able to escape easily.

What forms the black cage is the demonic energy activated by Xin Yuan with the help of the wings of the prison demon. These demonic energy have a great impact on the person trapped in the cage. If the cold air in the demonic energy is exposed to by a person with a weaker strength, it can be frozen into a popsicle on the spot. Even if Song Li is slightly stronger, he will not be frozen to death on the spot, which will greatly reduce his strength.

After urging the wings of the prison demon, Xin Yuan's strength will be greatly improved in a short period of time. Song Li is in a cage, and his strength will be greatly reduced due to the influence of the demonic energy. With one increase and the other decrease, Xin Yuan has already gained the advantage when facing Song Li. Now, Song Li is like meat on a chopping board, and he can only let him slaughter it!

"I didn't expect that these people from the Demon King Palace are indeed capable, but if you want to affect me, you look down on me too much, right?"

Seeing Xin Yuan's extremely proud look, Song Li not only showed a look of horror on his face, but instead said to Xin Yuan with some contempt. At this time, the cold air in which Xin Yuan exerted would indeed have a great impact on the person trapped in the cage.

However, for Song Li, who was in possession of the Emperor's Fire, the so-called cold air did not have any effect on him. As soon as he finished speaking, a dark flame suddenly rose from Song Li's body. The terrifying high temperature emitted by the flames burned the surrounding air violently and twisted.

The moment the Emperor Fire was activated, the coldness in Song Li's body quickly subsided like a tide. He gently waved the Red Fire Dragon Spear in his hand, and a loud sound of dragon roar was heard. Even the black cage that trapped Song Li was shaken hard!

"This... how is this possible? After urging the wings of the prison demon, the cold air contained in the demonic energy, even the strong demon king in the Great-level Demon King Realm cannot easily resist it. What is the flame activated by Song Li? Why can even resist the cold air contained in the demonic energy!"

Xin Yuan, who was looking at Song Li with a proud look on his face, was as if he was suddenly pinned by an invisible big hand. The expression on his face instantly frozen, and his eyes were full of disbelief.

You should know that urging the wings of the Prison Demon will cost Xin Yuan a huge price. Because the price is very high, after urging the wings of the Prison Demon, the strength that Xin Yuan can improve in a short period of time is also extremely amazing.

Once, he recruited a demon king strongman at the Great Advancement Realm. The demon king strongman not only refused to join the Demon King Hall, but also said that the Demon King Hall wanted to divide the demon clan and wanted to kill Xin Yuan on the spot. At first, Xin Yuan was not the opponent of the Demon King strongman and was injured by him. However, after he activated the Prison Demon's wings, he killed the demon king strongman after only two moves.

Xin Yuan remembered clearly that at that time, he used the cold air contained in the demonic energy to seal the demonic energy in the body of the demonic king. Within two moves, he killed a demonic king who was at the Great Enhancement Stage of the Demon King Realm.

Although Xin Yuan recovered for more than two months afterwards, the injuries caused to the body caused by urging the wings of the Prison Demon were recovered, through this incident, we can see how powerful the cold air contained in the demonic energy of Xin Yuan after urging the wings of the Prison Demon.

But what happened in front of him at this time was far beyond Xin Yuan's imagination. This time, the cold air contained in his demonic energy not only did not suppress Song Li, but instead completely dissipated the moment Song Li sacrificed the dark flames.

He really couldn't imagine how terrifying the black flames that Song Li sacrificed contained? Why was the cold air that could not even be resisted by the strong people in the Great Advancement stage of the Demon King Realm so easily dispelled by these black flames!

"What? Is it surprising? You have the secret technique of the Demon King Palace, and I also have my trump card! Since you are willing to activate the secret technique to kill me, let me see now. After activate the secret technique, how strong are you! "

Seeing Xin Yuan's extremely shocked look, Song Li chuckled and the Red Fire Dragon Spear in his hand swept out. The spear swung, like a black stream of light. A black energy burst out from the spear. The light columns condensed by the demonic energy released by Xin Yuan were instantly bombarded by Song Li with a gun.

"Even if you can resist the cold air contained in my demonic energy, you, who has not even reached the peak of the demon general, will never be my opponent. I will let you understand how strong the demon envoy in the Demon King Palace is. Today I will tear you apart and make you regret the decision you made!"

Seeing Song Li breaking through the black cage with one shot, Xin Yuan hurriedly shook his head. Although he didn't know why the flames in Song Li's body could dispel the cold air contained in his demonic energy, he was very sure of one thing, that is, after urging the wings of the prison demon, his strength was greatly improved.

Even if the cold air contained in the demonic energy did not have any impact on Song Li, he had all the advantages facing Song Li at this time. With his current strength, it would be no more difficult to kill Song Li than to kill an ant. Since he had activated the secret technique, he must kill Song Li today.

The black wings behind him suddenly waved, and Xin Yuan turned into a stream of light and shot directly at Song Li. Xin Yuan's figure passed through the air, and a sharp sound of breaking through the air came out. Even the solid ground below was impacted and a ravine that was more than ten feet deep appeared.

Xin Yuan grabbed his hands and suddenly formed a dozen wind blades that were thirty or forty feet wide in front of him. Xin Yuan suddenly pushed forward with his arms, and the dozen wind blades were whistling through the air and shot hard at Song Li.

The power of these dozen wind blades is not weaker than the skull condensed by Xin Yuan before. Seeing more than a dozen wind blades roaring towards Song Li, a smile slowly ejaculated on the corner of Xin Yuan's mouth.

At this time, in front of Xin Yuan, he seemed to have seen Song Li being cut into blood and blood by these dozens of fierce wind blades. What if the flames in Song Li dispel the cold air in the demonic energy? He wanted to see, facing these dozens of fierce wind blades, Song Li, a guy who had not even reached the peak of the demon general, could he have any other way!
Chapter completed!