*An Unknown Period of Time Ago*
The world was screaming, the sound of the earth itself being torn apart. The sky, once a brilliant blue, was now a bruised, sickly violet, choked by the soot of the world falling around them. In the center of this destruction stood a girl. She looked fragile against the backdrop of ruin. Her hair, a cascading river of pure, luminous white, fell to her waist, shimmering with a ghostly light that seemed to be the last spark of divinity left in the world. To any onlooker, she appeared no more than eighteen, but her eyes held immeasurable determination in them.
Standing opposite her was a silhouette carved out of the void, a pitch-black humanoid figure that seemed to absorb the light around it rather than reflect it. He did not breathe; he simply existed as a tear in the fabric of reality. And he was laughing. It was a melodic, resonant sound that felt like velvet sliding over a blade.
The girl buckled, her knees hitting the scorched earth with a dull thud. She coughed, and a spray of black, viscous blood splattered onto the gray dust. It was a sign that she had pushed herself too far.
"Isn't it meaningless to continue, my beloved child?" The silhouette spoke. His voice was infuriatingly seductive, a honeyed caress that vibrated in her very bones. "Look around you. The world is already on the brink of destruction. You are fighting for a corpse of a world. You cannot kill me with such primitive displays of magic."
The girl wiped the black blood from her lip with the back of a trembling hand. She forced herself to stand, her muscles screaming in protest. The mana in the air was thin, poisoned by the darkness, but she reached deep into the core of her being, her existence, her soul.
"No, Maleficus," she rasped, her voice cracking but steady. "I cannot kill you. As I, who cannot sever fate, can't kill you, but I can seal you."
The dark entity tilted his head, a gesture of amused curiosity. "Seal me? You, a mortal? There is no way that you can hold my essence."
She slammed her palms together. The air detonated with a sudden, blinding surge of white mana. Beneath her feet, a magic circle began to bloom. It was not a standard magical circle. It had impossible geometric patterns in it, and a fractal web of lines so complex and ancient that the human mind would go mad trying to map its intersections. It was far greater than any mortal could ever make.
The circle reached its zenith. White chains, forged from the very light of her spirit, erupted from the ground. They were not made of metal but of solidified will. They hissed through the air like striking vipers, wrapping around Maleficus's obsidian limbs. He roared, a sound of genuine shock, as the chains tightened, binding him, winding around his torso and throat until he was a mummified cocoon of white chains.
Then, with a sound like a heartbeat echoing through a canyon, the chains collapsed inward. They melted into the circle. The circle lost its shape and began to climb up her body, slowly being absorbed into it. The change began immediately. She felt a coldness settle within her, a heavy, oily feeling. And as that darkness took root, the connection she had felt her entire life, the warm, golden tether to the divine snapped. The gods had turned their backs on her. She felt their burning hate and disgust wash over her. She was no longer their blessed child.
"So, in the end, they have abandoned you," a voice purred. It wasn't coming from the air, but from the depths of her own being. His seductive tone is now laced with a cruel triumph. "They cannot stand the impurity you have invited into your soul."
"I already knew... they would turn their backs on me," she responded. "I saved the world in the end, so what does it matter?"
"I wonder, my dear, how long will you be able to endure?"
*Present Day*
The girl who looked no different from that fateful day was leisurely sitting on the edge of a cliff. Swinging her legs idly over the drop, a thousand-foot fall that would have terrified anyone, paying no mind to how close death was; looking out and enjoying the beautiful scenery of the forest which had grown up around her, fed by the lingering mana of the past battle.
The trees were massive, their bark glowing with a soft, bioluminescent pulse, their leaves breathing out a fog that turned the world into a dreamscape. When an annoying pest spoke, "How long has it been since that day? A thousand years? Five? Ten?How much longer do you think you can endure the madness?"
"As long as it will take, oh Being of Darkness," she replied aloud. She enjoyed the satisfaction of making him impatient.
"But you still cannot kill me," he reminded her, his voice leaning into that seductive, infuriating lilt. "You are merely a vessel, and that vessel will eventually crack, and finally break, and I will be able to pour out into the world again."
"You are right that I cannot kill you," she said, a small, knowing smile touching her lips. "I am the vessel made to hold you. But I have not spent these centuries in vain. Even if the gods have turned their backs on me, I have not lost my intuition. It has guided me through the rise and fall of kingdoms, and it tells me that the time of your end is approaching."
"The world has forgotten you, how laughable it is," Maleficus mocked.
"Does it truly matter if they forgot? As I have not, so I will continue to wait until the moment someone arrives to finish what I started." She stood up, her navy robes billowing in the mountain wind, a solitary figure against the vastness of time.