I Got Reincarnated as a Zombie Girl

One month had passed inside the sanctuary of the Primordial Zenith bone tomb, and for the three of them, time was no longer measured by the alternation of day and night which never truly existed beneath the miasma sky but by the number of Colossi corpses they had reduced to ash.

Sylvia had now reached Level 380. The change that occurred within her was not merely an increase in statistical numbers or an expansion of mana capacity within her core; it was a dense and profound mental transformation. The face that once still held remnants of impulsive expression had tempered itself into a sharp calmness like a cold scythe blade. Her crimson eyes no longer burned with explosive battle lust, but with absolute, deadly calculation. Every step she took left no room for hesitation; she knew exactly when to behead, when to restrain the Death Flame, and when to allow an enemy into the boundary of her domain before crushing them in a single breath.

The same had happened to her two sisters. Stacia, who a month ago still often complained that her brain was nearly exhausted from calculating thousands of enemy attack trajectory variables, could now analyze the movements of ten Colossi simultaneously with a flat, emotionless face. The tsundere and childish traits that had briefly surfaced in the hot spring a month ago had been neatly packed away beneath the maturity of a Fallen Angel soaked in the blood of battle. Alicia no longer panicked or hesitated when taking over defense. Her spirit domain now possessed a density almost resembling a physical fortress, capable of withstanding the physical onslaught of giants without showing even the slightest crack. Their minds had been forged by the cruelty of Persephone’s trial into something hard, firm, and unshakable.

"Twenty levels left," Sylvia murmured softly as she stood atop a hill of bone ash, gazing toward a horizon that now felt so empty and dead. The dry miasma wind blew, brushing against her black robe that swayed gently in the silence. "Twenty levels before the next evolution limit at level four hundred."

Yet the greatest problem lay precisely in that silence itself.

The vast land that a month ago had been filled with horrifying groans and the thundering footsteps of dozens of Colossi was now completely silent. Not a single giant silhouette moved in the distance. No enemy mana signatures registered within the range of Stacia’s analysis radar. The bone tomb spanning tens of kilometers had been thoroughly cleaned; every ancient undead creature, every Colossus that rose from residual skeletal mana, and every anomaly that wandered this land had been slaughtered without remainder over the past thirty days. This land was truly empty.

"I’ve expanded the scanner’s range to its maximum limit," Stacia’s clear voice came from behind, her blue-golden eyes glowing beneath layers of rapidly spinning data. "Nothing. No signs of life or undead within a fifty-kilometer radius. It seems we’ve already cleared this entire floor."

"Does that mean we have to search for a path to another area?" Alicia asked as she floated lightly beside them, the tip of her magic staff emitting a soothing pale blue light. "Or... has Mother Persephone’s trial already ended here?"

Sylvia remained silent. Her death instinct, the one thing that had never lied to her since she first set foot in this world whispered that something was wrong. Very wrong. This silence was not the silence of peace, but the silence before a storm that would shatter the ocean.

They decided to return to the place that for one month had been their headquarters and safest resting spot: the chest cavity of the eternal skeleton that contained their artificial hot spring. That place was the only point where the ancient aura of the giant skeleton had always succeeded in repelling the approach of the Colossi, a place where they could close their eyes without fear of being attacked from behind.

Yet the moment Sylvia’s foot touched the edge of the giant rib that marked the boundary of their sanctuary, the world beneath their feet collapsed.

BLAARRR!!

The tremor that followed was no ordinary earthquake. It was a geological explosion that shook the entire foundation of the Primordial Zenith land. The hot water inside their crater pool overflowed and instantly evaporated from the insane temperature surge rising from underground. The giant ribs that had protected them for a month, eternal bones that not even Colossi attacks could scratch began to scream, crack, and explode into flying white dust fragments.

"Fall back!!" Sylvia shouted, her reflexes activating in a fraction of a microsecond before her conscious mind fully processed the situation.

From the highest point of the ground they had considered a safe sanctuary, a super-massive hand so colossal that each of its fingers alone was the size of an ancient castle tower burst upward from the depths of the earth’s crust. The hand was covered in thick black miasma mud and fragments of eternal rock, its stone claws tearing through the sky like giant knife blades.

The shock that struck the three sisters was so massive that their breath momentarily caught in their throats. The size of that hand alone already surpassed the body of the largest Colossus they had slaughtered in the past month. And that was only the hand.

Slowly, with a screech of grinding stone and bone that was so deafening it made Alicia’s protective domain tremble violently, the creature’s head emerged from beneath the ground. A head formed from a jet-black skull layered with frozen magma armor, its pair of eye sockets blazing with dense, ancient golden hellfire.

KRAAAGHHH...!!

The earth beneath them could no longer support the creature’s impossibly massive weight. The ground collapsed into a giant fissure as the upper body of the monster rose from its eternal grave. Every meter of its body that emerged to the surface was accompanied by the collapse of the surrounding land. An extraordinary wave of gravitational pressure weighed down the air, turning the already heavy atmosphere nearly impossible to breathe.

When the giant finally stood fully upright from beneath the surface, the three of them could only look up with pupils that had shrunk to pinpoints.

The creature’s height nearly reached one hundred meters or perhaps even more than one hundred meters; it was difficult to measure with certainty when the figure was so enormous that it blocked half the horizon. Its massive body was composed of unbreakable black primordial bones, muscles formed from dense death-mana tendons, and a natural armor layer of ancient asteroid rock that absorbed the light around it.

When the giant’s pair of golden eyes lowered and locked onto the three of them who now looked no larger than tiny ants on the dust, the hairs on the backs of Sylvia’s, Stacia’s, and Alicia’s necks stood on end simultaneously. A cold, primordial terror crawled up their spines, a sensation of dread they had not felt in a long time. The aura pressure radiated by this creature was unreasonable; it was equal to, or even far denser and stronger than, the pressure of the Elder Dragon they had once faced in a life-or-death battle in the past.

"This..." Stacia’s voice sounded slightly hoarse, her eyes working at lightning speed to process trillions of data points continuously exceeding capacity limits. "This isn’t an ordinary Colossus... This is the core of the eternal skeleton itself! It is the Last Boss of this entire land!"

Before Stacia’s words had finished echoing in the air, the hundred-meter giant moved its right hand.

The movement looked slow because of its colossal size, yet that was a deadly optical illusion. In reality, the giant’s hand sliced through the air faster than the speed of sound, sweeping across the area where they stood with mechanical force sufficient to erase a mountain from the map.

"Stacia!!" Sylvia ordered.

Without needing to be ordered twice, Stacia spread both arms. A blue-golden teleportation portal opened instantly behind them. With the pull of her spatial magic, Stacia seized Sylvia’s and Alicia’s bodies and leaped into the spatial corridor a thousandth of a second before the giant’s palm slammed into the ground.

BOOOOOOMMMMM!!

The impact of that hand created a new crater one kilometer wide. Although Stacia had successfully transferred them dozens of meters into the air to a relatively safer point, the shockwave and hurricane-force winds generated by the giant’s sweeping hand still struck them mercilessly. The dense air displaced by the monster’s hand weight slammed into their bodies like an iron wall traveling at high speed.

Sylvia crossed both arms, bracing against the wind that tore the edges of her robe, while Alicia was pushed back several meters before managing to stabilize her position in the air. Bone dust and rock swirled into a ferocious storm around the feet of the hundred-meter giant.

The three of them floated in the air, locking eyes amid the raging miasma wind. There was no panic in their gazes. One full month of slaughter had erased fear from the dictionary of their souls. What remained now was the absolute understanding that the enemy before them could never be defeated if they fought separately. This was the final trial, the last obstacle to clearing this floor and claiming the remaining twenty levels they needed.

Sylvia looked at both of her sisters, then nodded firmly.

That single nod was enough. Stacia and Alicia nodded back without uttering a single word.

Simultaneously, Stacia spun her hands forward. Layers of hexagonal analytical magic shields glowing blue ignited around the three of them, forming a seven-layered defensive formation that spun rapidly. At the same time, Alicia raised her magic staff high; her spirit domain exploded outward, coating Stacia’s magic shields with a semi-transparent white-golden wall that neutralized the gravitational pressure from the giant before them.

Inside that double protective dome, the Soul Fusion process began.

This was not an emergency fusion like the ones they had performed in the past when facing life-threatening danger. This time, they did it with full control, perfect awareness, and soul synchronization that had matured after one month of living, fighting, and bleeding together.

Three pillars of light Sylvia’s dense crimson, Stacia’s blue-golden, and Alicia’s silver-white exploded from their respective bodies, intertwining with one another in a vortex of energy so dense that the space inside the protective dome began to crack. Their souls, which had fundamentally been bound by destiny and Persephone’s resurrection magic, began to merge into a single frequency of existence.

The metamorphosis process lasted several minutes that felt sacred amid the storm raging outside the shields.

Not only their souls and bodies fused, but the legendary weapons they possessed also responded to the call of fusion, evolving to a level of perfection far beyond their previous fused forms.

Alicia’s magic staff, crafted from eternal wood, shot into the center of the vortex, lengthening and densifying until it turned jet-black layered with golden fibers, transforming into an extremely sturdy and indestructible handle. From another direction, Sylvia’s Chain of Abyss surged forward like a black dragon serpent, wrapping around the upper tip of the staff before melting and forming the blade of a giant scythe that curved sharply a blade of pure death aura capable of severing the threads of existence itself.

And as the final perfection, Stacia’s Grimoire opened wide in the air; its pages shattered into thousands of blue light fragments that then condensed into hundreds of ancient magic runes. Those analytical runes floated and adhered tightly along the scythe’s blade and shaft, engraving absolute magical law and mathematical calculation into the physical form of the weapon.

When the light of the soul vortex gradually dimmed, a new entity floated in the air, radiating an aura that made the surrounding space tremble in submission.

Sylvia served as the primary vessel of the body, standing with a posture that was both elegant and deadly. Yet the appearance of her face had now transformed into a stunning and terrifying harmony; half of her face retained Sylvia’s original features with sharply glowing crimson eyes and firm pale cheeks, while the other half transformed into Alicia’s semi-transparent spirit form, radiating sacred silver light with clear blue eyes as calm as an eternal ocean.

Behind her back, Stacia’s Fallen Angel wings bloomed with soul-stirring beauty. The wings, which in the previous evolution had numbered only six feathers, had now doubled six pairs of wings, a total of twelve black-golden feathers spread wide, each beat releasing dense mana particles that tore through the surrounding miasma air.

Her right hand, sheathed in black-and-gold armored gauntlets, tightly gripped the massive Scythe resulting from the fusion of their three legendary weapons, a weapon far larger and more terrifying than any scythe that had ever existed in the world. Meanwhile, her left hand slowly rose, holding an ancient gothic-style lantern that burned with eternal cold blue flame, a lantern formed from the remaining core fragments of Alicia’s magic staff, functioning as the focus of an unlimited spirit domain.