Reverend Insanity: The Gacha System

Yue Shiyin steadied her breathing as she sat cross-legged before the cauldron. The materials for refining a Rank 4 Destruction Path Mortal Gu were laid out meticulously around her, each shimmering with latent energy. Obsidian Fragments, Time Flux Dew, and Eternal Dark Petals, were positioned precisely in a meticulous formation.

She activated her investigative technique once more, ensuring no trace of interference lingered in her quarters. Satisfied, she reached for the first component—the Obsidian Fragments. Each fragment was a deep midnight black, jagged yet refined as if holding ancient energy within. She sprinkled the fragments into the cauldron, infusing them with her primeveal essence. The flames responded, shifting from orange to pale violet as the fragments dissolved, releasing faint ripples of darkness energy.

Next came the Time Flux Dew. The dew, held in a crystalline vial, shimmered in hues of shifting silver and lavender. She carefully uncorked it, allowing a single drop to fall into the cauldron. The dew distorted slightly before merging with the mixture, bending light around the edges of the flames as if warping reality.

Yue Shiyin's gaze sharpened as she picked up the Eternal Dark Petals. These petals seemed woven from twilight itself, their edges curling with a faint luminescence. One by one, she added them to the blend, softly chanting under her breath.

The cauldron reacted violently, a surge of dark energy rising as the flames turned deep purple. She maintained her focus, channeling her primeveal essence steadily. The petals disintegrated, merging into the molten pool of energy now swirling within the cauldron.

A moment of stillness followed. Then, with precise hand seals, Yue Shiyin activated a stabilization killer move. Thin threads formed intricate patterns above the cauldron, containing the volatile reactions within.

The final phase approached. The core ingredients had fused, forming a concentrated sphere of destructive energy at the heart of the cauldron. She cast three Gu worms into the cauldron: the Twilight Void Gu, a darkness path Gu worm shaped like a tiny black moth with a glowing violet core that pulsed with dark energy; the Immutable Law Gu, a rule path worm resembling a crystalline spider with sharp, symmetrical legs; and the Dimensional Echo Gu, a space path Gu worm appearing as a shimmering silver orb that seemed to fold light around itself.

She first threw Twilight Void Gu inside the molten pool, its dark energy blending seamlessly with the mixture. Immediately after, she cast the Dimensional Echo Gu to contain all of the molten pool within its space path abilities, constraining the chaotic energy. Lastly, she released the Immutable Law Gu, setting a precise rule path pattern to stabilize the space path energy and prevent a backlash during the refinement.

The entire room darkened as the energy peaked. Sparks danced wildly around the edges of the cauldron, yet Yue Shiyin's control never wavered. Finally, after hours of concentration, the energies coalesced fully.

A Gu worm emerged, its form small but captivating. It was pitch black with a faint, glowing violet spiral etched along its segmented body, pulsing gently like a heartbeat. Its body felt cold yet thrummed with immense potential, the ultimate manifestation of a destructive path balanced with primeval essence.

Yue Shiyin extended her hand, the Gu hovering slightly above her palm.

She had succeeded. A Rank 4 Destruction Path Mortal Gu was born. Yue Shiyin decided to name it the Purple Abyss Gu. Its primary use was to unleash a destructive surge capable of tearing through the fabric of time and space, creating a localized temporal fracture that disrupted defensive barriers and formations.

The Gu's secondary ability involved generating a destabilizing aura where time shifted irregularly, causing delayed reactions and weakening the structure of both physical objects and other elemental constructs within a confined radius. When paired with a killer move, it could enhance the user's physical strength and other killer moves to an extent that their strikes could nearly obliterate, even rival a Rank 5 Peak Gu Master will lose in front of it.

Its appearance was striking—pitch black with a swirling violet spiral encasing a faint silver core, giving the illusion of a miniature void in constant flux, representing the delicate balance of chaos and controlled destruction bound within a single mortal vessel.

Rising from her seated position, she stood tall and stepped out of the house, the wooden doors creaking shut behind her. The mountain breeze caressed her face, carrying with it the scent of ancient blossoms.

Sensing that no one was there, without hesitation, she activated a killer move using Rank 4 Purple Abyss Gu and some combination of Strength Path Gu.

The Titan Bone Gu surged first, fortifying her skeletal structure with immense density and durability, making her frame feel nearly indestructible. Next, the Mountain's Heart Gu flared to life, enhancing her muscle fibers and filling her limbs with unparalleled strength.

Lastly, the Thunder Pulse Gu activated, crackling along her arms with purple arcs of lightning, further amplifying her physical prowess. Finally, with the effect of the Purple Abyss Gu, a surge of destructive energy coursed through her hands and into her fists. Yue Shiyin's hands were now enveloped in dark purple lightning and smoke, resembling the phenomenon of Black Flash, except the color was a deep, menacing purple instead of red.

The ground beneath her feet trembled as the energy surged further, radiating a palpable aura of devastation. Her breaths became steady and deep, synchronized with the pulsating energy surrounding her fists. She clenched her hands tighter, and the crackling arcs intensified, each spark leaving scorched marks on the stone below. The nearby blossoms quivered, their petals slowly drifting to the ground, disintegrated by the sheer destructive force emanating from her.

With a sharp exhale, Yue Shiyin thrust her right fist forward, releasing a concentrated blast of destructive energy from her hand. The purple lightning surged outward in a focused beam, distorting the air as it tore through the space ahead.

The ground cracked violently beneath the force, and a shockwave rippled through the area, sending debris flying in all directions. The echo of the blast lingered, As she observed the aftermath, the cracked earth and dissipating energy a testament to her strength, Yue Shiyin felt a deep sense of satisfaction. With a final glance at the shattered landscape, she turned and stepped back inside.