Chapter Text
Prologue
The battlefield was silent.
What once had been the flourishing capital of Holo Earth a sanctuary of towers, bridges, floating gardens and magical light now lay in ruin. Stone buildings cracked and burning, statues toppled, the once-glorious banners of the Holo Guild torn and scattered like wilted leaves. The wind blew ash instead of petals, and magic hung in the air like smoke suffocating, bitter.
And in the center of it all stood Usada Pekora.
No longer the laughing trickster of the village.
She stood draped in a black, corrupted battle cloak, her body bound in obsidian-plated armor laced with glowing red veins of cursed magic. Her cursed netherite sword hummed with an unnatural heat, etched in jagged runes, its edge still wet with the blood of friends and comrades.
Across her face sat a half-broken rabbit mask, cracked diagonally revealing one eye, now glowing crimson, the other hidden beneath the cold smile of the mask's porcelain shell. Her long twin tails were blackened, blue streaks barely visible under a curtain of ash.
Around her, the earth was scorched craters, broken weapons, shattered magical barriers, and the still forms of fallen warriors lay in a ring of devastation.
They had fought well.
But none had stood long against the monster she had become.
And yet four still remained.
Tokino Sora, the Guildmaster, stood steady despite the dust and blood that covered her white robes. A long staff was gripped in her hands, its top still flickering with the last remnants of a holy light barrier now broken.
Beside her, Mori Calliope, the Grim Reaper, knelt with one leg braced on a stone, her scythe blade chipped, cloak shredded. Her breathing was ragged, but her flame hadn't gone out. Not yet.
Further to the right, Anya Melfissa crouched like a shadow on broken stone, her eyes sharp. She was no ordinary rogue her body was forged magic, the living manifestation of a human dagger, her twin blades humming at her sides with restrained fury.
And standing furthest back, silently taking aim, was Shishiro Botan, the Sniper of the Silver Grove. Her rifle a long magical construct shaped like an ancient beast was scorched along the barrel but still intact. She never blinked.
None of them spoke.
They had no words left.
Before them stood not Pekora but the creature born from her grief, pain, and the cursed sword that had twisted her soul. She had once been their companion. Their chaos. Their friend.
Now she was a storm in the shape of a rabbit.
A monster born of a sealed grave and a broken wish.
Thunder cracked in the distance, as the shattered ruins echoed with magic still alive from the battle. Somewhere, a tower collapsed in slow motion.
Pekora tilted her head. She raised her sword slightly, red light running down the edge like blood remembering how to drip.
And the survivors tired, broken, but unyielding readied their weapons.
Because if this was the end of the world...
They would not let it fall without a fight.
Thus began the age of the Black Eclipse.
The sun rose lazily over Holo Earth, its rays stretching like golden threads across the dew-covered hills. Another peaceful morning in Holo Village, where fields of wheat swayed in rhythm with the wind, and lanterns still glowed faintly under the trees from the night before.
The village had a kind of magic to it not just the kind that sparkled from enchanted books or shimmered on armor but a magic of warmth. Of laughter. Of memories built in cobblestone paths and mismatched rooftops. Each house was unique, full of quirks and history, just like the people who lived in them.
Towering above it all were two floating islands suspended in the sky each the size of a small fortress. Embedded in the heart of one was a white sword, long and radiant, gleaming like moonlight even under the sun. In the other: a black sword, jagged and silent, its dark metal pulsing faintly with hidden energy. They were known as the Twin Blades of Balance, created long ago by a sorceress whose name had almost faded from common speech.
But some remembered.
And one of them whether she admitted it or not had never forgotten.
A little ways from the village center, nestled under the shadow of the black blade, sat a modest home surrounded by carrot patches and carefully rigged tripwires.
Inside, a familiar voice rang out:
"Bum... bum-cha... bum... bum-cha~♪"
Usada Pekora bounced around her cluttered workshop, humming her rhythm as she dug through chests overflowing with enchanted arrows, redstone dust, and TNT. The scent of gunpowder and cooked potatoes mingled in the air like perfume.
"Where's my lever... peko? Ah! Found it~" she grinned, pulling a freshly-labeled item: Ultimate Prank Device Mk.5.
Her blue hair swayed as she skipped to her crafting table. Tucked between her ears was a small carrot hair tie, slightly frayed but still holding strong. Her white cloak had soot stains and bits of hay stuck to the edges signs of a prankster hard at work.
"Today's target is... Lamy? Or maybe Flare again? Hohoho~ they won't know what hit them, peko!"
She was cheerful. She was chaotic. She was until moments ago completely unaware of what stirred above her.
A faint tremor passed through the ground. Subtle. Easy to ignore. But her ears twitched anyway.
"...Hmm?"
She stepped outside, squinting up at the sky. A breeze passed by colder than usual.
And then, from above, the first shard of stone fell.
Just a pebble. Then another. Then a steady stream black fragments, falling like burnt snow from the island that held the black sword.
"What the...?" Pekora muttered, backing up.
Above her, cracks glowed red across the surface of the floating island. A humming began deep, ancient, and slow vibrating through the earth and into her bones.
Then came the first real quake.
The island shuddered, and a piece the size of a boulder broke loose, crashing behind her house in a blast of dirt and flame.
"PEKO!?"
She staggered, eyes wide.
Magic circles once etched beneath the black island flared then shattered. The runes, now cracked and weeping red light, fizzled out like dying embers.
And then...
The sword fell.
The black blade twisted as it descended, its edge cutting the sky itself. Magic howled around it uncontrolled, raw, furious.
It struck the ground with a thunderous roar, sending a shockwave that flattened trees and sent waves of energy rippling across the land. Pekora was thrown off her feet, crashing into the dirt beside her now-burning fence.
Smoke billowed. Sparks rained down like ash.
She coughed, trying to stand. Her limbs shook. The carrot patch was gone. Her house had crumbled. Even her chests were thrown open, items scattered and smoldering.
In the heart of the crater stood the black sword, embedded deep into the earth its blade pulsing red like a heartbeat.
But Pekora wasn't looking at the sword.
She was staring at the figure beside it.
Green short hair. Thin frame. Still as stone. And surrounding her, ethereal green butterflies fluttered in slow motion, almost as if time bent around her presence.
Pekora's breath caught in her throat.
"...Rushia...?"
The name spilled out before she could stop it. Her voice trembled.
It had been so long.
Too long.
She remembered it now.
The laughter in the fields. The times they built together, fought together. The soft-spoken necromancer who once stood at her side Uruha Rushia the one who created the twin swords. The one who always said strange things like:
"If the light shines too bright, the shadows grow deeper to balance it."
Rushia had always seen beauty in the tragic. She once whispered to Pekora that she wanted to summon a guardian from beyond something that could protect their land forever.
Pekora had laughed at the time.
But the summoning failed. Not because the magic was wrong but because Rushia's power wasn't enough. The spirit she tried to call turned against her. And when she screamed... no one came in time.
All that remained was her shattered staff and her name etched into the oldest grave.
But nowhere she was.
Or something that looked like her.
"Rushia!" Pekora stumbled forward. "Is that really you!? Say something, peko!"
The figure did not move. But the sword did.
Its crimson glow intensified. The butterflies scattered. And from its hilt, a strange shadow leaked, stretching across the scorched earth like a crawling hand.
Pekora stepped forward. Closer. Her eyes locked on the familiar silhouette, heart aching.
"I missed you so much, peko... I thought you were..."
Her hand reached out.
It never touched Rushia.
Instead, it brushed the black sword.
The instant her fingers grazed its hilt, the world went silent.
Time stopped.
Pekora's eyes widened as tendrils of dark energy snapped to life, latching onto her arms and dragging her forward. She gasped but no air entered her lungs.
From the blade's core, a voice not made of sound spoke directly to her soul:
"You are the one she left behind."
"You carry the light. So now, carry the shadow."
The sword pulsed once.
And then..
BOOOOOOM.
An eruption of pure black magic burst outward like a second sun gone wrong. Lightning twisted through the sky. The wind reversed. Soil cracked and flew upward. All color was drained from the world for an instant replaced by darkness so deep it devoured even sound.
At the center, a pillar of black rose from the crater, swallowing Pekora whole.
Her body was no longer visible only a writhing mass of smoke, fire, and chaos sealed within a rising orb of void that hovered above the land. Inside it, something stirred. Something grew.
The wind screamed. Birds fled. The very sky seemed to retreat.
Inside the sphere, Pekora's soul twisted. Her memories warped. Her body reshaped. Armor formed over her skin like a second layer of obsidian. Her carrot hair ties blackened to deep purple. Her playful smile curled into something sharper.
And she laughed.
Once.
But it was not the same laugh.
It was colder.
Wiser.
And no longer hers alone.