1. Birth Colors[BC] belong ONLY to humans.
No beast, no creature, no entity outside the human race can possess, mimic, or steal a Birth Color.
BC are the soul signatures of humanity.
---
2. Every human is born with a unique HEX BC.
Example:
Axell → Beige #deb887
Ember → Grey #777777
This HEX BC is:
their potential
their identity
their affinity
their evolution path
their proof of humanity
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3. No two humans can have the same BC at the same time.
This is known as:
THE ONE-COLOR PRINCIPLE[OCP]
As long as a human with HEX #deb887 exists,
no other human anywhere in the universe can be born with #deb887.
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4. When a human dies, their color becomes "available" again.
Another human in another time, another region, or even another dimension
may be born with that same HEX.
BC is not hereditary.
It is not predictable.
It simply reincarnates when the slot is empty.
---
5.BC does NOT dictate abilities.
They only dictate:
what material you interact with more easily
how your energy behaves
what feels "natural" to you
That's it.
Everything else?
You invent yourself.
5. Abilities do NOT pass to the next user.
Only the color does.
Abilities are shaped by:
trauma
will
creativity
danger
environment
emotions
Experiences
So:
Axell's rain manipulation
Ember's Greatsword formation
Den's brown overload
are one-generation miracles, never to appear again unless recreated manually.
Rain hammered the mountain for hours.
Cold. Relentless. Unforgiving.
And Ember lay there in the mud, unconscious, blood mixing with the grey dust still clinging to her skin. The greatsword she forged with her very life had vanished from sight—no fragments, no glow, not even a scratch in the earth where it once stood.
Her chest rose and fell slowly.
She didn't notice the rain.
She didn't notice the pain.
Only exhaustion.
Pure, absolute exhaustion.
---
Axell and Childe arrived just as the sky began darkening.
"Oi… Ember?" Axell whispered, crouching. His voice for once wasn't mocking—just confused, soft.
Childe scanned her quickly. "She's breathing. No major wounds. Just drained."
Axell poked her shoulder.
His finger sank slightly, more than it should have.
"Huh… she feels… kinda heavy."
Childe shrugged, grabbing her under the arm. "Bro, we fought a bear. Everything feels heavy now. Help me lift."
Axell hoisted her from the other side.
Her body weight = 51 kg.
Normal for a tough 11-year-old athlete.
Her left arm weight = 80 kg.
Combined = over 130 kg.
But the boys, adrenaline still running from surviving a forest monster, didn't even process it. They just grunted, adjusted her over their shoulders, and marched through the rain.
Den, following behind, blinked.
"…She's heavy."
Axell snorted. "Bro, shut up. You summoned a bear."
They carried her near the damaged bus, where their tiny campfire sputtered under the rain shield Childe made using shadows and scrap metal. They dried Ember off as best they could, wrapped her in spare jackets, and let her rest on a wide seat cushion.
Night fell.
The rain softened.
The three boys drifted into uncomfortable half-sleep.
---
Ember Wakes Up
Her eyes snapped open.
Cold air hit her lungs.
Her head throbbed.
Her knee… her wrist… her elbow… all tense, but manageable.
But her left arm—
It felt like a boulder was strapped to her shoulder.
Her fingers twitched, slow, heavy, dragging through the air like they were dipped in liquid stone.
She looked around quickly.
No sword.
Not on the ground.
Not beside her.
She grabbed her bracelet.
It felt warm.
Alive.
Almost pulsing.
And then—
Her arm glowed grey faintly.
---
During the falling-boulder incident.
Ember used her own blood as the binding material.
Blood = human life.
Human life = the only thing capable of holding Color.
When she input her Grey (#777777) into her blood and forged a blade—
She created a weapon tied to her biologically
> A Grey Weapon with a human core.
Her body recognized the weapon as part of her.
So it absorbed it.
The moment she collapsed unconscious, her body pulled the blade inward, merging it into:
her bones
her muscles
her aura pathways.
The morning sun cut through the mist in sharp, cold beams. The storm had passed, but the forest still dripped with the memory of last night.
The rescue team finally arrived—bright jackets, radios crackling, boots crunching through wet leaves. Teachers stumbled toward them, exhausted, soaked, some bandaged from the crash.
"Everyone gather!" one of the officers shouted. "We're moving you to the reserve center. A second bus is on the way."
Students emerged from the trees and the broken bus—shivering, wrapped in makeshift blankets, faces pale from a night with too little sleep and too much fear.
Ember joined the crowd quietly.
She kept her left arm close to her body, pretending it hurt normally… while her fingers sank into the damp soil with every step. She forced her grip light, slow. Controlled. Normal.
Axell stared at her walk.
"…Did the ground… just crack?"
Childe elbowed him. "Don't ask stupid questions."
Den clung to his half-burnt jacket like a war veteran.
---
The new bus arrived—a plain white transport vehicle, engine humming, warm air drifting from the open door.
Students piled in, relieved. Some cried. Some bragged. Some were too tired to speak.
Axell, Ember, Childe, and Den took the seats near the middle.
Within seconds, the whispering began.
"DID YOU SEE THAT LIGHT?!" a kid shouted from the front.
"Bro, that was NOT lightning," another argued.
"I swear it was like… some kind of giant orb."
"Yeah, like the whole sky flashed with some weird color!"
"No way, I bet it was just the storm reflecting."
"Storms don't glow like THAT, idiot!"
Kids kept debating, voices getting louder.
---
Axell slowly slid lower in his seat until he resembled a melting cartoon character.
Childe stared out the window like none of this concerned him.
Den shook like someone just whispered "bear" into his soul.
Ember stayed quiet, focusing on the faint weight pulling at her left arm.
---
More whispers spread:
"It was huge. Like… it covered the whole sky for a moment."
"No way lightning does that."
"This wasn't lightning, I'm telling you."
"What if someone used their Color with the storm?"
"That's impossible, right?"
A student turned around and looked suspiciously at everyone, not anyone in particular:
"…Somebody must have done SOMETHING."
He said it with the dramatic tone of an anime villain who failed his math exam.
By the time the students reached the reserve center, the sun had risen cleanly over the mountain. Heaters hummed, blankets were passed around, and teachers fussed over roll-call and injuries.
But four kids sat in silence.
Ember.
Axell.
Childe.
Den.
Still processing everything.
A teacher turned on the TV in the hall.
Static.
Then a reporter's voice filled the room.
"Last night, an unidentified light phenomenon was seen over the northern reserve…"
Students gasped.
Teachers stiffened.
The broadcast continued.
"Authorities report a massive flash covering the sky for several seconds. Cause unknown."
Whispers erupted everywhere.
"Is it real?"
"Someone did that?"
"Was it a monster?"
"Is the reserve cursed?"
Ember's eyes slowly drifted… to Axell.
Her expression sharpened.
Not accusing.
Not scared.
Just… curious.
Was it him?
Axell didn't move.
Didn't blink.
Just gave her the smallest, laziest nod.
A silent admission.
A silent: Yeah… that was me.
Ember bit back a smile—
a small, sharp smirk she couldn't hide.
Not fear.
Not shock.
Just excitement.
So he's evolving too.
Childe saw the exchange, narrowed his eyes, but said nothing.
Den missed everything because he was panicking under a blanket.