The Supreme Satanic System

With a triumphant smirk, the Heretic God retracted the Tetra-chrome into his palm. He inquired, a hint of mockery in his voice, "What say you now?"

Rising gracefully into the air, Silpha Naya'il unleashed a blood-curdling cry, her eyes locked onto him with a piercing intensity. "You wretch, I'll not only defeat you but also feast upon your very soul!" Her words were laced with venom as she glared at him. In an instant, Damien sensed a profound shift in her aura—a stark departure from her former purity. It was now imbued with a chilling aura of death.

As he observed with keen interest, rainbow-hued horns emerged from her forehead, and her once fair skin darkened while her physique underwent a transformation. Her previously pristine white feathers turned lustrous black, and she gained an additional three feet in height. Her once crimson eyes now gleamed golden, their pupils, slitting vertically like a cat's.

"That's like the most advanced version of my Satanic Transformation Technique," Damien mused, meticulously recording every detail with his eidetic memory. Her abrupt transformation took aback the Heretic God.

"Ah! Could it be—you're a member of the Devil War Tribe from the Anti-God Clan?" he stammered–a mixture of awareness and trepidation in his voice.

"Yes, I'm a hybrid! Though I hardly spent much time with my Devil-blooded father, he imparted many skills to hunt and vanquish your divine kin," she replied hoarsely, pride clear in her tone. With a fierce determination, she darted towards him. "And your kind trembles before us, do you not, little god?"

In response, the Heretic God channeled all of his power into the Divine Tetra-chrome without restraint and hurled it toward her.

Roaring, she caught the spinning sphere with her left hand, her grip unyielding. It erupted into a billowing cloud of white smoke before she soared toward him with breathtaking speed.

The situation appeared dire for the Heretic God, and he understood it all too well. He had to unleash everything he possessed to confront this devilish adversary. Without hesitation, he performed a series of hand seals with such astonishing speed that Damien's eyes struggled to keep up. It appeared the Heretic God possessed thousands of hands. His eyes radiated—one golden, the other azure blue—as the nine rings encircling his irises whirled in a mesmerizing dance, some clockwise and others counter-clockwise.

"Divine Time Cassock, activate!" he commanded, striking his black cassock.

Instantly, two pairs of lines descended like tattoos, one golden and the other azure blue, crisscrossing his cassock. Soon, his entire body bore this tattooed pattern, extending to his feet and palms. With a battle cry, the Heretic God charged at her, meeting her ferocious punch with his own. A resounding explosion of energy erupted between them, forcing them apart by about a mile.

They both swiftly regained their footing and dashed towards each other, engaging in intense hand-to-hand combat, occasionally throwing in powerful kicks. The melee continued for days, with each seizing opportunities to inflict damage upon the other. Astonishingly, their battle raged on, unceasingly, for three years, and not a trace of exhaustion marred their relentless struggle. Only after fifty years of ceaseless combat did they finally halt.

Their battlefield had shifted; now, they floated in the dark, empty expanse of space, far removed from the world where their battle had begun. After delivering a final blow, they separated, maintaining a distance of roughly five miles between them. Despite the gap, it was still too close for comfort. They regarded each other wearily, their labored breaths a testament to the epic battle that had spanned centuries.

"Curious, aren't you, as to why a member of the Devil War Tribe of the Anti-God Clan like you has failed utterly in your attempt to assassinate me?" The Heretic God's guess was astute, her eyes betraying her thoughts like an open book.

"Is it not because your Divine Cassock possesses the power to rival us?" Silpha Naya'il inquired, her tone innocent.

"Hahaha," the Heretic God erupted into hearty laughter, noting her strong reaction. He continued, "My apologies for my mirth. Your ignorance truly knows no bounds, Miss Silpha Naya'il. Let me enlighten you—my God Kin do indeed fear and dread your clan. My cassock is inconsequential. Your Devil bloodline, on the other hand, is rather diluted. Perhaps that's why your father abandoned you in this remote Feather Clan."

"No, you're mistaken. In fact, he has implored me multiple times to return to his homeland. It's me who refuses," she retorted with the stubbornness of a child. "Thankfully, your words provide the answer to my query about how to end your life. I shall slay you with the Forbidden Devil's Claw." With determination, she began chanting a mantra that resembled the growling of a thousand ghosts.

Her words sent a shiver down the Heretic God's spine. He too initiated an incantation. During the ritual, all nine rings in his left eye drew together, merging into a single ring. Their spells culminated simultaneously, revealing a dark claw on her left palm.

"Truth be told, I had no intention of employing this imperfect Forbidden Ocular Technique of mine, but you've left me with no choice," the Heretic God declared.

"Dimensional Devouring Ocular Technique, activate!" he exclaimed, and a dark ring, akin to a black hole, expanded outward, growing larger with each passing moment. A potent suction emanated from it, and his primary aim was to ensnare Silpha Naya'il and imprison her within his eye.

To his astonishment, Silpha Naya'il evaded the encroaching darkness, her agility reaching unprecedented levels after activating the Forbidden Devil's Claw. Both of them watched in awe as the black hole rapidly expanded, swallowing everything in its path—asteroids, moons, planets, and countless stars. Among the trillions of worlds it devoured, Silpha Naya'il's realm was not spared.

Realizing the direness of the situation, she cried out in desperation, "You fiend! Cease this madness! You've already devoured an entire sanctuary and my Feathery World with it."

"Like I would comply," he sneered, hiding his astonishment.