The Immortal Physician's Transmigration: Miraculous Rejuvenation

Ye Yuanchen stood at the forefront of the allied forces, his gaze fixed firmly on the Dark Night Demon Lord. He knew that this battle would determine the fate of the cultivation world and the mortal world, and there was no room for retreat.

The Dark Lord slowly rose to his feet, his dark aura spreading out like a surging wave, enveloping the entire hall. "You think you can easily defeat me? You're delusional!" His voice echoed in the hall, filled with disdain and arrogance.

The warriors of the allied forces gripped their weapons tightly, unleashing their magical arts and martial skills in preparation for the impending fierce battle. The leaders and elders of various sects also stood ready, gathering their powerful spiritual energy to form barriers for both defense and attack.

Ye Yuanchen launched the first attack, unleashing his ultimate technique, "Spiritual Yang Holy Healer's Demon-Slaying Technique," which combined the power of light, the power of nature, and immortal medical arts. A dazzling beam of light shot out from his hand, containing powerful purifying and healing power, hurtling towards the Dark Night Demon Lord like a brilliant meteor.

The Dark Night Demon Lord snorted coldly, his hands moving as dark energy coalesced into a massive black shield before him. Ye Yuanchen's attack struck the shield, producing a deafening roar as light and darkness intertwined and collided, sending up ripples of energy.

Mu Wanyue wielded her spirit whip, which weaved through the dark cultivators like a nimble dragon. She unleashed a unique auxiliary immortal technique, channeling her spiritual power into the alliance warriors, enhancing their strength and speed. Simultaneously, each swing of her whip precisely struck the dark cultivators' vital points, creating opportunities for the warriors to attack.

Lu Zixuan swiftly deployed a large-scale, comprehensive formation at the rear of the battlefield. This formation integrated offensive, defensive, and trapping functions. Once activated, a barrage of spiritual energy arrows rained down on the dark forces. Simultaneously, a sturdy shield formed within the formation, protecting the allied forces from enemy ranged attacks. Meanwhile, trapping runes within the formation flashed continuously, attempting to confine the Dark Night Demon Lord's subordinates within.

Bai Youruo played her spirit flute, the notes transforming into invisible sonic blades that pierced through the dark hall. Her flute music could not only attack the souls of her enemies, plunging them into chaos and torment, but also provide spiritual support to the Alliance warriors, enhancing their morale and confidence.

Seeing this, the Dark Lord's dark protectors charged towards the alliance forces. They unleashed various evil dark magic spells, engaging the alliance warriors in fierce close combat. These dark protectors were powerful, and their attacks were cruel and unpredictable, putting immense pressure on the alliance forces.

During the battle, Ye Yuanchen discovered that although the Dark Night Demon Lord's dark shield was powerful, it had developed some subtle flaws under his continuous attacks. He decided to take a risk, raising his spiritual power to its limit and then unleashing a celestial technique capable of piercing the shield, "Spiritual Light Shield-Breaking Thrust." A slender yet sharp beam of spiritual energy shot from his hand, like a razor-sharp blade, directly piercing the Dark Night Demon Lord's shield's weak point.

The Dark Night Demon Lord sensed the danger and tried to adjust his shield, but it was too late. Ye Yuanchen's Shield-Piercing Strike successfully pierced the shield and struck the Dark Night Demon Lord's body. The Dark Night Demon Lord let out a painful roar as a wound appeared on his body where the Strike had struck, from which dark energy slowly seeped.

"Ye Yuanchen, how dare you hurt me! I will make you pay a heavy price!" Dark Night Demon Lord roared angrily.

Ignoring the pain of his wounds, he unleashed an extremely powerful dark magic, the "Dark Night Annihilation Curse." The entire hall was shrouded in darkness, from which countless demonic phantoms appeared. These phantoms, baring their fangs and claws, charged towards the Alliance forces. Wherever they went, the Alliance warriors were corrupted by the demons' dark power, their bodies contorting in agony, their strength greatly diminished.

Seeing this, Ye Yuanchen's heart tightened. He knew he had to break this Dark Night Annihilation Curse as soon as possible, or the alliance forces would be annihilated. He closed his eyes, calmed his mind, and recalled the records he had seen in the Immortal Abode about breaking dark immortal techniques. Suddenly, an idea struck him; he thought of a method to break the curse by using the Heart of Light as a guide, drawing upon the power of nature and the collective faith of the people.

He shouted, "Listen to my command! Gather the power of your beliefs into me, and together we will break this Dark Night Annihilation Curse!"

The alliance warriors responded enthusiastically, releasing the power of their beliefs in peace, justice, and survival, which converged into beams of light upon Ye Yuanchen. Ye Yuanchen sensed this powerful force of belief, merging it with his own power of light and nature, and then unleashed a new immortal technique, "Light Belief Breaking Spell Technique."

A massive white light rose from Ye Yuanchen's hand, illuminating the entire dark hall like a blazing sun. Wherever the white light touched, the demonic phantoms vanished, and the dark power of the Dark Night Annihilation Curse was gradually dispelled.

The Dark Night Demon Lord was greatly shocked to see his Dark Night Annihilation Curse broken. He hadn't expected Ye Yuanchen to find a way to break it so quickly. He knew he could no longer hold back and had to use his full strength.

He gathered all the spiritual energy of living beings and the essence of cultivators he had devoured over the years, preparing to unleash an ultimate dark immortal technique, "Dark Chaos Devouring Wave." Once unleashed, this technique would create a massive dark vortex capable of devouring anything that approached it, including life, spiritual energy, and souls.

Ye Yuanchen sensed the Dark Night Demon Lord's intention; he knew this would be the decisive blow. He turned to Mu Wanyue, Lu Zixuan, and Bai Youruo and said, "Let's gather all our power together; this is our last chance."

Mu Wanyue, Lu Zixuan, and Bai Youruo nodded. They walked to Ye Yuanchen's side and transferred their spiritual power to him without reservation. Ye Yuanchen felt their trust and support. He merged the power of the four of them together and then unleashed a supreme technique that surpassed all previous immortal techniques, "Saint Healer's Bright Chaos Break".

This ultimate technique combines the healing and protective power of celestial medicine, the purifying and expelling power of light, the life-giving and harmonious power of nature, and the power of the four people's beliefs and emotions. A huge golden light shot out from their hands, containing the breath of life, the hope of light, and unwavering faith.

Golden light and the Dark Chaos Devouring Wave of the Night Demon Lord met in the center of the hall. The two powerful forces collided and compressed, forming a massive energy sphere. Within the energy sphere, light and darkness intertwined and fought, causing the entire hall to tremble violently, as if it were about to collapse at any moment.

The Alliance warriors and the Night Lord's minions ceased fighting, watching the battle within the energy sphere with bated breath. They knew the outcome of this battle would determine their fate.

Within the energy sphere, Ye Yuanchen, relying on his unwavering belief and the combined power of the four, gradually gained the upper hand. The Dark Night Demon Lord's dark power began to slowly dissipate under Ye Yuanchen's attacks.

Finally, with a deafening roar, the golden light completely engulfed the dark chaos devouring wave. The Night Demon Lord let out a desperate roar as his body gradually dissipated within the golden light, transforming into wisps of dark energy that vanished into the air.

With the demise of the Night Demon Lord, his dark forces crumbled. The Dark Protectors and Dark Monks, having lost their leader, fled in disarray, but most were wiped out in pursuit by the Alliance forces.

Ye Yuanchen and his companions successfully defeated the Dark Night Demon Lord, saving both the cultivation world and the mortal world. This battle became a legend in both realms, and the names of Ye Yuanchen, Mu Wanyue, Lu Zixuan, and Bai Youruo have been passed down through the ages. Their deeds have inspired generations to pursue justice, safeguard peace, and explore the unknown path of cultivation.