5 years ago, The sky turned into darkness and mythical beings descend from above.
It began without warning.
No prophecy.
No countdown.
No mercy.
On that day, the heavens cracked open across the world, and from those wounds crawled creatures that did not belong to Earth. They were vast, grotesque, beautiful in a terrifying way—beings spoken of only in myths and forbidden texts.
Cities fell in hours.
Weapons failed in minutes.
Hope died in seconds.
Humans called it The First Collapse.
What the monsters brought with them was worse than destruction.
They brought power.
Scientists later named it Nen—the total energy circulating through a being's body. It governed everything: strength, speed, stamina, durability, regeneration. Monsters possessed oceans of it.
Humans possessed drops.
Armies were erased trying to bridge that gap.
Until one man refused to accept it.
No one knew where he came from.
Some said he was a soldier who survived too many battles.
Others said he was a civilian who lost everything.
A few whispered that he had already died once—and came back wrong.
What was known… was what he did.
During the siege of the old continental capital, when seven mythical beings descended at once, humanity's final defensive line broke. Evacuation failed. Millions were trapped.
That was when he walked onto the battlefield alone.
Eyewitness recordings showed a single human figure standing before creatures the size of skyscrapers.
"No reinforcements detected," a trembling operator had said.
"Command… he's just standing there."
The monsters laughed.
Then the man's Nen ignited.
Not exploded—ignited.
His energy output surpassed all recorded human limits in seconds. His Nen didn't just flow—it burned, tearing through his own body and rebuilding it moment by moment.
The sky above him distorted.
One mythical being lunged.
The man met it head-on.
The shockwave erased five city blocks.
When the dust settled, the monster was gone.
Then another fell.
Then another.
For three days and three nights, the man fought without rest. His Nen output increased the closer he came to death, as if destruction itself fed him.
At the end of the battle, the surviving mythical beings fled back through their portals.
Humanity stood silent.
They never found the man's body.
Only scorched ground and a crater that still glowed faintly with Nen.
History named him—
The Burst Legend.
Present Day.
Akushi Moya sat on the rooftop of his apartment building, legs pulled close to his chest, staring at a worn book resting in his hands.
The Burst Legend: Confirmed Records and Theories.
Most of it was speculation.
Akushi had read it all anyway.
"They say you burned your own life away," he murmured. "Was it worth it?"
The wind brushed past him.
Then the air grew heavy.
Akushi looked up.
The clouds twisted unnaturally, folding inward as if the sky itself was being dragged apart.
"…No way."
A sharp裂 echoed.
The sky cracked open.
Violet and black light poured from a jagged seam above the city, warping the air around it.
Sirens erupted seconds later.
"Dimensional breach detected. All civilians evacuate immediately."
Footsteps thundered behind him.
"Akushi!" Mr. Goro shouted, bursting through the stairwell door. "Get away from the edge!"
Akushi didn't look back. "Mr. Goro… is this how it started five years ago?"
Mr. Goro froze. "…Yes."
A massive claw forced its way through the portal, Nen spilling from it like smoke.
Akushi felt it press against his chest.
"That's Nen," he said quietly. "So dense it hurts."
Mr. Goro grabbed his arm. "You shouldn't be able to tell that!"
The monster dropped into the street below with a deafening crash. The ground fractured outward.
Screams followed.
Moments later, armored figures arrived.
"Nen Enforcement Unit—East Division," a calm female voice announced. "Captain Reina Solis in command."
Reina surveyed the monster carefully. "No rushing. Maintain Nen circulation."
They attacked methodically.
For a while, it worked.
Then the monster's aura thickened.
"HUMANS," it growled. "You imitate our energy, yet you fear it."
One soldier stumbled back. "Captain, it's adapting!"
Reina clenched her jaw. "Fall back."
Akushi's chest tightened.
This is the difference.
The Burst Legend never retreated.
Akushi stepped forward without realizing it.
Mr. Goro shouted, "AKUSHI, STOP!"
Pain bloomed in his chest—slow, deep, unavoidable.
He dropped to one knee. "What… is this?"
Warmth spread through his body.
Nen—untrained, unstable—began leaking from him.
Reina felt it instantly.
She turned sharply. "That presence… a civilian?"
The monster froze and looked up.
"…That pressure," it whispered. "That man…"
Akushi stood, shaking.
"I'm not him," he said softly. "I just admire him."
The warmth pulsed—steady, unyielding.
As if something old was listening.
The sky trembled.
For the first time since the First Collapse—
The legend did not return.
But its spark did.