The Immortal Physician's Transmigration: Miraculous Rejuvenation

Ye Yuanchen stared at the towering Dark Demon God before him, his heart filled with apprehension, yet he showed no intention of retreating. He knew that this battle concerned the very survival of the world, and only by giving it his all could he have a glimmer of hope.

"Gentlemen, this Dark Demon God is the core of the dark forces. As long as we defeat him, the darkness will dissipate. We must fight with all our might to protect our homeland!" Ye Yuanchen's voice was firm and loud, resounding throughout the swamp like a great bell, inspiring every alliance warrior behind him.

Mu Wanyue tightened her grip on the spirit whip, her eyes revealing a resolute determination. "Yuan Chen, we will live and die with you, we will never be afraid!" Her words were brief yet powerful. The spirit whip trembled slightly in her hand, as if sensing its master's resolve, emitting a soft pink light that contrasted sharply with the surrounding darkness.

Lu Zixuan swiftly set up a powerful, comprehensive formation around everyone—the "Spirit Realm Stars Demon-Slaying Formation." This formation, integrating attack, defense, and soul protection, was the result of countless deductions and improvements made under the enhancement of his spiritual sea power. Once activated, countless starlight-like spiritual runes flickered and moved within the formation, connecting to form dazzling beams of spiritual energy that enveloped everyone. "This formation can temporarily resist the demon god's attacks and enhance our offensive power. Everyone, fight within the formation, cooperate with each other, and don't panic!" Lu Zixuan loudly instructed everyone as he set up the formation.

Bai Youruo took a deep breath, placed the Spirit Sound Flute to her lips, and played the stirring "Spirit Sound Demon-Slaying Song." The flute's sound transformed into tangible sonic blades, sweeping towards the Dark Demon God like a surging tide. These sonic blades merged and overlapped along the way, forming a powerful soul-shaking force, attempting to interfere with the Demon God's actions and weaken its dark will.

Sensing the alliance's provocation, the Dark God roared with a deafening fury. It swung its massive dark arm, slamming it down upon the alliance army. Wherever the arm passed, space itself distorted, and dark energy raged like a black storm. Wherever it went, mud and water in the swamp were hurled hundreds of feet high, transforming into black mud pillars that surged towards the alliance.

Ye Yuanchen took the lead, unleashing his strongest technique—the "Spirit Sea Saintly Healer's Demon-Slaying Technique," a fusion of the power of the Spirit Sea and immortal medical arts. His entire body was enveloped in alternating golden and blue light, his immortal sword gleaming brightly, its blade flowing with strange runes. He moved like lightning, instantly charging towards the Dark Demon God, his immortal sword unleashing several sword shadows imbued with the power of life and the purifying power of light. These sword shadows intertwined and merged in the air, transforming into a gigantic dragon of light, baring its fangs and claws as it pounced towards the Demon God. Wherever the dragon passed, the dark aura dissipated, like snow meeting the blazing sun.

Mu Wanyue worked closely alongside her, unleashing her "Spiritual Dance Illusion Whip Magic." The spirit whip danced flawlessly in her hands, transforming into streaks of pink light that coiled around the dark demon god's limbs like agile dragons. With a forceful pull, she attempted to restrict the demon god's movements, while simultaneously channeling her own spiritual power into the demon god's body through the whip, disrupting the flow of its dark energy.

Lu Zixuan fully controlled the "Spirit Realm Stars Demon-Slaying Array" within the formation, pouring his soul power and spiritual sea power into it without reservation. The spiritual energy rays within the formation became thicker and brighter, and their attack power increased dramatically. Arrows of spiritual energy, imbued with the power of stars and the impact of souls, rained down on the Dark Demon God. Upon striking the Demon God, these arrows not only caused immense damage to his body but also directly impacted the depths of his soul, plunging him into a brief period of chaos and confusion.

Bai Youruo's flute music grew increasingly high-pitched and passionate. She constantly adjusted the rhythm and intensity of her playing, maximizing the power of the "Spiritual Sound Demon-Slaying Divine Melody." The sonic blades within the flute music continuously sliced ​​and vibrated around the Dark Demon God, causing its massive body to tremble slightly. At the same time, the flute music also dispelled the fear and fatigue in the hearts of the alliance members, enhancing their fighting spirit and confidence.

However, the Dark Demon God was far too powerful, and it quickly adapted to the alliance's attack rhythm. It suddenly shook its body, breaking free from Mu Wanyue's spirit whip, and simultaneously spewed forth a dense cloud of dark flames. These flames were pitch black, incredibly hot, and distorted and warped wherever they touched. The flames swept towards the alliance army, instantly burning away a portion of the spiritual energy beams of the "Spirit Realm Stars Demon-Slaying Array." Some cultivators and mortal warriors within the array were affected by the flames, letting out painful screams.

Seeing this, Ye Yuanchen felt a pang of pain in his heart, but he knew he couldn't panic at this moment. He swiftly flew to the front of the formation, gripped his immortal sword with both hands, and concentrated all his spiritual power at the tip of the blade. He chanted incantations, unleashing an ancient and powerful sealing immortal technique—the "Spirit Realm Holy Seal Demon Sealing Technique." A massive golden sealing rune shot out from his immortal sword, rapidly expanding in the air and enveloping the Dark Demon God. This sealing rune contained the primordial power of the Spirit Realm and Ye Yuanchen's understanding of the rules of heaven and earth. Once the Demon God was successfully sealed, it would be temporarily imprisoned, buying time to completely destroy it.

The Dark Demon God seemed to sense the danger of the sealing runes and attempted to evade. But Mu Wanyue, Lu Zixuan, and Bai Youruo wouldn't let it succeed. Mu Wanyue once again wielded her spirit whip, unleashing the "Illusory Whip Shadow Demon-Trapping Array." Countless phantoms of the spirit whip appeared around the Demon God, forming encirclements that restricted its movement. Lu Zixuan adjusted the array within, concentrating all its offensive power below the Demon God, preventing it from escaping downwards. Bai Youruo played the "Soul-Fixing Spell," the flute's melody transforming into an invisible force that immobilized the Demon God's soul, slowing its movements.

With everyone's concerted efforts, the golden sealing runes finally enveloped the Dark Demon God. The Demon God roared in anger, struggling desperately to break free of the seal. However, the sealing runes, reinforced by the spiritual power of Ye Yuanchen and the others, remained as solid as a rock.

Taking advantage of the Demon God's seal, Ye Yuanchen flew above it. He fused the power of his spiritual sea, soul power, and immortal medical arts to their peak, unleashing his ultimate move—the "Spirit Realm Bright Holy Healer's Demon-Slaying Technique." His entire body shone brightly, like a dazzling sun. His immortal sword slowly descended, unleashing a massive blade of light containing endless light, life, and soul-purifying power, slashing towards the Dark Demon God. Wherever this blade passed, space was torn open with tiny cracks, and the dark aura was completely purified, transforming into pure spiritual energy that dissipated into the air.

Mu Wanyue, Lu Zixuan, and Bai Youruo also gathered all their power into Ye Yuanchen, amplifying the power of their attack. Under their combined assault, the Dark Demon God let out a final, desperate roar, and its body began to dissipate. First, its massive form transformed into countless black specks of light, then these specks vanished completely under the purification of the power of light.

As the Dark God was defeated, the dark aura in the swamp quickly dissipated. The sky, which had been shrouded in darkness, gradually brightened again, and sunlight shone on the earth once more, dispelling all the gloom. A deafening cheer erupted from the Alliance army, and the soldiers embraced each other and wept with excitement, celebrating this hard-won victory.

Ye Yuanchen and the others landed wearily on the ground, but their faces beamed with relief. They had paid a heavy price in this battle, but ultimately succeeded in protecting the world's peace and light. They knew the road ahead was long, the world needed time to recover, and they would continue to shoulder the responsibility of protecting the world, passing on the experience and insights gained in this battle, cultivating more outstanding talents, and ensuring the world would no longer be threatened by the forces of darkness.

After the victory, Ye Yuanchen and his allied forces cleaned up and repaired the battlefield. Using their magical powers, they eradicated the dark remnants from the swamp, restoring its ecological balance. Simultaneously, they erected monuments around the world, inscribing the names of the warriors who bravely sacrificed their lives in the battle, ensuring that future generations would forever remember their achievements and contributions.

As time passed, the world gradually regained its former prosperity and vitality. The connection between the cultivation world and the mortal world became even closer, with people learning from and helping each other, jointly promoting the development of the world. Ye Yuanchen and others became heroes of the world, their stories widely circulated, inspiring generations of young people to bravely pursue light and justice, and to strive to create a better world.