Fifteen years ago, a significant event occurred.
It was triggered by the Russian Empire, one of the countries in the Union, which invaded Estonia, a country that had not yet joined the League.
The Union aimed to divide the world among several major powers, so some aggressive countries within the Union frequently dispatched troops to suppress small countries' resistance by force, attempting to incorporate these territories into their control. At that time, Estonia, which had not yet joined the League, was targeted by Russia and faced a crisis.
In response, the League, driven by its opposition to the Union, deployed troops without Estonia's consent. This action provoked reactions from the other major powers within the Union, leading to a standoff between the League and the Union that nearly triggered a third world war.
However, the conflict ultimately ended in a stalemate for a very simple reason.
Just as the two armies were about to engage in full-scale combat, a single person appeared between the armies.
That person was a girl.
A girl dressed in white and wielding two swords.
The sudden appearance of this girl on the battlefield just before the two armies clashed led to a remarkable turn of events. She charged into the fray like a Valkyrie and decimated both armies, ultimately annihilating 300,000 troops and earning unparalleled fame.
Estonia's crisis was resolved by the intervention of this lone girl.
However, her actions infuriated both the League and the Union, leading them to issue an international warrant for her arrest, calling upon Blazers worldwide to capture her.
Because the Rebellion operated in the underground world, the international warrant issued by both the League and the Alliance meant that almost every country would cooperate in the hunt for her, making it nearly impossible for her to find refuge.
Yet, those who attempted to capture her were all defeated by her astounding strength.
The two major powers that divided the world's territories ultimately failed to apprehend her, only further spreading her legendary prowess.
Ten years passed, during which Estonia experienced a massive political upheaval and changed regimes. This led Estonia and the other two Baltic states to announce their membership in the League.
Upon joining the League, the President of Estonia made a declaration in front of the world.
"Our country relinquishes all claims to the land around Aideberg. Therefore, the world-class criminal hiding in Aideberg has no connection with us."
Indeed.
To avoid becoming enemies with the girl, Estonia made such a declaration.
Because Aideberg in Estonia was the girl's homeland, her place of origin.
At that time, the girl acted personally to repel both the League and the Union forces due to this fact.
In the end, even the League and the Union gave up on capturing her.
Thus, the girl's fame spread throughout the world.
It was said that her swordsmanship could rival an entire nation and that she alone could match the strength of a country.
It was said that she stood at the pinnacle of all swordsmanship, the ultimate existence in this path.
Because the girl always wielded twin swords and was as white as wings, she was known as "Twin-Wings."
Her name was Edelweiss.
She was the world's strongest swordsman.
Such an existence...
"Why is she in this country?"
Sensing the terrifying sword aura from afar, Shinguji Kurono and Saikyo Nene both had grave expressions.
Because she had once fought against both the Union and the League and had annihilated an army of 300,000, the world's strongest swordsman, known as Twin-Wings, was also called the most evil criminal in the world. Almost no country could tolerate her presence, causing her to be closely connected with the Rebellion.
Of course, she had not joined the Rebellion but was only associated with it due to her opposition to both the Union and the League.
In other words, whether she was truly evil was uncertain.
However, her strength was undeniably formidable.
At least, both Shinguji Kurono and Saikyo Nene acknowledged that they were no match for her.
Unless it was one of the three strongest forces in the world, the top three Blazers, who could rival her, no one had ever won against her.
Even two years ago, when the world's strongest Blazer, Tenkai, fought Edelweiss at the western border of Europe, the outcome remained unknown. The only thing left behind was a flattened mountain range, the final result of their battle a mystery.
Such a powerful and terrifying existence suddenly appearing in the dead of night and exuding such a fearsome sword aura, how could Shinguji Kurono and Saikyo Nene not feel gravely concerned?
"Could it be that she's preparing to fight someone here?"
Shinguji Kurono felt a sense of doubt.
"But aside from you and me, who else could warrant such a sword aura from that swordswoman?"
Saikyo Nene voiced her thoughts.
But as soon as she said it, both she and Shinguji Kurono instantly thought of one person.
"Tenkai...!"
Yes.
It could only be that person.
As previously mentioned, Edelweiss searching for Tenkai worldwide was no secret; many people knew about it.
Given this, Edelweiss's appearance here and the emanation of such an astonishing sword aura could only mean one thing.
"Things are really getting troublesome...!"
Shinguji Kurono couldn't help but show an anxious expression.
"If even Tenkai is here, then it's truly troublesome."
Saikyo Nene also felt a headache.
It should be noted that two years ago, Tenkai and Twin-Wings' battle had flattened a mountain range, leaving the area in ruins and even becoming a tourist spot where many people saw the remnants of that battle.
In this situation, if these two really appeared here and fought, the city might be completely destroyed.
Shinguji Kurono and Saikyo Nene exchanged a determined look.
"We should go."
Shinguji Kurono said in a low voice.
"There's no other choice."
Saikyo Nene sighed, her eyes becoming fierce.
The next second, the two of them simultaneously leaped out of the window, heading at incredible speed toward the source of the sword aura.
There, an inevitable clash awaited.