Chapter Text
The Chronicle of the Battle Fight
In the beginning, when Earth was still a barren world devoid of life, God created immortal beings known as the Undead.
Each Undead represented a different species.
They neither aged nor succumbed to disease, and they could not be harmed by anything except the power of another Undead.
To determine which species was worthy of ruling the world, God established a ritual known as the Battle Fight.
He separated a fragment of His own power and created the Monolith, the absolute overseer of the contest . The Monolith would seal away defeated Undead.
The victorious Undead would be granted immense power and a single wish, allowing the species they represented to become the dominant life-form on Earth.
Such was the will of God.
Such was the law of the world.
Yet it was also the beginning of an endless tragedy.
The First Battle Fight
The First Battle Fight was the most chaotic conflict in history.
The Undead slaughtered one another relentlessly, but no true victor ever emerged.
Fearing that the evolution of life on Earth would stagnate, God created a special being known as the Albino Joker.
Unlike the other Undead, the Albino Joker was not a participant in the Battle Fight.
Its sole purpose was to release the sealed Undead should every contestant be defeated or the Battle Fight reach a dead end.
It was God's contingency plan.
A key prepared for the day the system failed.
The Second Battle Fight
Millions of years later, the Second Battle Fight began.
The victor was Tyranno Undead.
Through the wish and power bestowed by the Monolith, dinosaurs rose to become the rulers of Earth.
Yet victory did not bring satisfaction.
Consumed by ambition, Tyranno Undead desired even greater power.
Gathering many other Undead beneath his banner, he led a rebellion against God Himself.
Began the war between the Creator and His creations.
The outcome was absolute.
Every rebel was erased from existence.
The Third Battle Fight
After the rebellion, God created another special Undead.
Its name was Joker.
A being that represented no species.
A creature capable of wielding the powers of other Undead.
When the Third Battle Fight ended, Joker stood as the sole victor.
However, for the first time since the dawn of creation, the rules were broken.
The Monolith did not grant Joker a wish.
Instead, disasters engulfed the world.
Meteors fell from the heavens.
Volcanoes erupted across the globe.
Floods and ice ages followed in succession.
Almost all life on Earth was wiped out.
Only then did Joker discover the truth.
His existence was a reset mechanism for the world itself.
Whenever Joker became the victor, the current era would be destroyed so that a new age could begin.
He was never meant to inherit the world.
He was meant to end it.
The Fourth Battle Fight
After millions of years of recovery, God once again created new species.
Among them was humanity.
And with humanity came Human Undead.
The Fourth Battle Fight began.
By then, Joker already knew the truth behind his existence.
He understood that if he won again, history would repeat itself.
The world would once more be reduced to ruin.
Driven by despair, Joker sought out Human Undead.
Not as an enemy.
But as an ally.
Together, they sealed away every participant of the Battle Fight.
One by one, the Undead vanished into their seals.
Even Albino Joker was eventually sealed.
Until only Human Undead, and Joker remained.
At last, Joker willingly allowed Human Undead to seal him as well.
The Battle Fight ended without a final battle.
Human Undead became the last remaining contestant.
As the victor, he was granted a wish.
His wish was simple:
"I wish for all living beings on Earth to live in happiness."
After his wish was fulfilled, Human Undead sealed himself away.
And thus began the Age of Humanity.
But history never truly ends.
Thousands of years later, ancient ruins containing the Undead seals were discovered.
During their research, human scientists accidentally broke the seals.
The Undead awakened once more.
A new Battle Fight was about to begin.
Amid the chaos, Joker encountered Human Undead again.
Yet instead of fighting, Human Undead willingly allowed Joker to seal him once more in order to help Joker control his instincts..
Not long afterward, during a battle against another Undead, Joker accidentally caused the death of an explorer.
As he lay dying, the man made one final request.
He asked Joker to take care of his young daughter.
Joker accepted.
For the first time in his endless existence, he began to live as a human.
And it was that little girl who gave him a name.
A name he would carry until the very end.
Subaru.
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To fight the undead, the organization BOARD developed the Rider System using data obtained from the Joker Undead.
Kenzaki Kazuma became Kamen Rider Blade.
Tachibana Sakuya became Kamen Rider Garren.
Kamijo Mutsuki became Kamen Rider Leangle.
And Natsuki Subaru, the Joker Undead living among humans, used the powed of Mantis Undead, Subaru fought as Kamen Rider Chalice.
Though they began as enemies, Riders and Undead alike eventually formed bonds and fought together to protect the world.
However, a terrible truth was revealed. If Joker became the last Undead remaining, the world itself would be destroyed.
To protect humanity, Kenjaki had no choice but to sealed away his best friend.
For four years, peace endured.
Then a new threat emerged. Albino Joker.
A special Undead created by God to restart the Battle Fight if every Undead fail.
Unlike the others, Albino Joker had come to despise the endless cycle of conflict. To him, the Battle Fight was nothing more than a cruel game created by a higher entity.
Seeking the power to overthrow fate itself, he declared war upon the world.