I exchanged sects with the real daughter, and I ascended to heaven to offer sacrifices to her

When the Demon King used his secret technique, his clone merged with his original body, and their power gathered, just like a great demon from ancient times reappearing in the world.

Yu Qingning silently recited the Heart Purification Technique, and the buzzing sound in his mind disappeared. The appearance of the Demon King at this moment made people feel chilling.

Suye's voice came from beside his ear: "This is the magical secret technique of the Nine-tailed Fox clan - Nine-tailed Heavenly Demon Transformation."

"It can temporarily grant them strength beyond their limits, but this method comes at a great cost. It will deplete most of their essence after use. If they can't defeat it quickly, they will fall into a state of extreme weakness."

"He used this secret technique because he undoubtedly knew that the longer it took, the less likely he would win. Only by ending this battle as quickly as possible would he have a chance of survival."

Yu Qingning nodded silently. The Demon King indeed had more than just the ancient demon soul as his trump card. Although it was dangerous to perform this secret technique, only by fighting with one's back against the wall could he have a chance to win over the powerful leaders of the Immortal Sect.

A hint of madness flashed in the Demon King's eyes, as if he had seen the dawn of victory.

Nine tails danced in the air, each containing destructive power, like nine lightning bolts, tearing through the air and attacking the Four Seasons Heavenly Gang Demon-Slaying Formation.

After performing the secret technique, the Demon King's power was too strong. Even with the suppression of the large formation, the power of the Nine-Tailed Fox caused the entire space to tremble when it touched the formation.

The powerful leaders took out their magic weapons and displayed their magical powers to fight against this violent force. However, after the Demon King performed his secret technique, several powerful men in the Tribulation Crossing Stage discovered that their magic power was gradually being suppressed.

What's even more bizarre is that this secret technique can actually absorb the spiritual energy from the surroundings and transform it into the power of the Demon King, making his attacks even more fierce. Even the magic weapons that were sacrificed dimmed when they collided with the power of the Demon King's nine tails.

The nine tails of the Demon King suddenly transformed into the shadows of nine giant pythons, which frantically slapped the formation's barrier, and every impact caused ripples in the void.

For a moment, the light of the formation began to dim, and the powerful people of the immortal sect felt unprecedented pressure.

Pei Yin, Tianjizi and others also felt the threat from the Demon King and looked at each other.

The elders understood what he meant, formed seals with their hands, and chanted something. A vast amount of spiritual power surged out of their bodies and was injected into the formation.

In an instant, the Four Seasons Heavenly Gang Demon-Slaying Formation burst out with dazzling light again under the combined efforts of everyone, and rays of Heavenly Gang power turned into sharp arrows, shooting directly at the Demon King.

Shen Xuanli made hand seals and ice spiritual power spread, covering the entire battlefield in frost and forming icy chains that tightly wrapped around the nine giant python phantoms of the Demon King.

The chains flashed with cold light, and each one contained an extremely cold force that was enough to freeze the heaven and earth.

The Demon King's nine tails struggled under the restraint of the ice chain. He didn't expect that even though his strength increased suddenly, he would still be controlled by an ice spell.

A cold light flashed in his eyes, and the nine tails exerted their strength together. An even more powerful demonic energy burst out from his body, and the icy chains began to crack.

"A person in the Void Realm wants to control this emperor? Dream on!"

With a "bang", the ice chains shattered and turned into countless ice crystals that flew everywhere.

After breaking free from its restraints, the Nine-Tailed Fox's body expanded rapidly, almost occupying the entire space. The nine tails surrounded the Demon King, forming an insurmountable barrier.

There was a cunning light in the Demon King's eyes. He slowly stood up, and every step seemed to shake the earth.

"Now, it's time for you to see the true power of the Nine-Tailed Fox."

If the Demon King's target before was still Yu Qingning, then at this moment, he wants everyone in the formation to die here!

Either you die or I die.

As the Demon King finished speaking, his nine dancing tails stirred up a gust of wind, and his figure appeared and disappeared in the vortex of the storm. His power seemed to have reached a whole new level.

Everyone's robes rustled in the strong wind.

Shen Xuanli mobilized the spiritual power in his body, formed seals with his hands again, and a more refined chill burst out from his body.

The system was excited and said excitedly: [Ningning, look, this is Shen Xuanli's special skill, Frozen Thousand Miles!]

Ningning stared at Shen Xuanli intently, and saw that the coldness around him was getting thicker and thicker, as if even the air was about to solidify.

Thousands of miles of ice, this move not only requires powerful spiritual power support, but also requires ultimate control over ice magic.

Shen Xuanli's hands were forming seals faster and faster, the temperature around him dropped sharply, and the entire small back mountain was covered with a thick layer of frost.

In an instant, the entire battlefield was shrouded in a dazzling white light, and the cold air spread out from Shen Xuanli to the surrounding areas, like layers of waves.

Su Ye sniffed, leaned closer to Yu Qingning, and asked if he was freezing and needed to stay close to him to keep warm.

Yu Qingning stared at the center of the battlefield, seemingly unaware of Su Ye's approach. He saw frost quickly covering the ground and spreading to the storm surrounding the Nine-tailed Demon King. The violent storm was now frozen by the cold.

When the Nine-tailed Demon King felt this power, his pupils suddenly contracted, and a solemn look appeared in his eyes for the first time, but he still snorted coldly with disdain.

The next second, the dancing nine tails merged into a huge tail in an instant, sweeping towards Shen Xuanli with the power to destroy the world.

Faced with this sudden attack, Shen Xuanli remained extremely calm, and the cold air around his body became more condensed, as if it had turned into an indestructible layer of ice armor.

He quickly formed a complex hand seal with his hands, and a huge ice-blue magic circle unfolded under his feet. The light emitted from the magic circle intertwined with the cold air, forming a powerful energy vortex.

A dazzling light burst out from the center of the magic circle, and then countless ice cones fell from the sky like a rainstorm, each of which contained enough sharpness and coldness to penetrate everything.

These ice cones drew graceful arcs in the air, aiming directly at the Nine-tailed Demon King.

Faced with this sudden attack, the Nine-tailed Demon King quickly danced its nine tails, trying to resist the attack of the ice cone.

But there were too many ice cones and they moved as fast as lightning. Even if the Nine-tailed Demon King's barrier was strong, it was difficult to block it completely.

At the same time, Shen Xuanli quickly changed the seals with his hands, and an even more violent cold air burst out from his body and rushed straight into the sky.

Wherever the cold air passed, even the air seemed to freeze, and layers of frost began to form on the Nine-tailed Demon King's tail.

The extremely cold air penetrated every corner of the body, and even the Demon King's body gradually lost its former flexibility. His feet began to become stiff, and a chill quickly spread throughout his body, as if to freeze him.

The surroundings were already covered in ice and snow. Even the disciples outside the small back mountain felt the bone-chilling chill and shouted excitedly, "It's Senior Brother! It's Senior Brother who's taking action!"