The white, phantom-like Phoenix cried out as it charged directly towards Yusei and Souji.
Souji, who had known Kaguya was preparing a big move, dodged early, leaving Yusei completely exposed to the Phoenix's attack.
A smile tugged at Yusei's lips. He was intrigued. This was a sword skill he had created and only used a few times in SAO. He never expected Kaguya to have already learned it.
"Since that's the case, how can I dodge? Let me inspect the results of your training."
In an instant, facing the Phoenix's phantom closing in, Yusei adopted the same stance… sheathing his sword, sinking low.
Swish!
In less than a second, his katana swept out horizontally. A blue dragon silhouette shot forth, meeting the white Phoenix's phantom head-on.
Compared to Kaguya's three-second preparation, Yusei's Dragon's Bite was instantaneous. Even so, Kaguya's talent was extremely high.
The Phoenix and the Dragon bit into each other, entangled, and fought, seemingly intent on shattering all the sword energy contained within the other.
However... this breathtaking confrontation didn't last long. Both Yusei and Kaguya stared in astonishment at the Dragon and Phoenix.
They saw the two entities strangely calm down, the Sword Intent within them seeming to fuse together, ceasing their mutual assault.
Boom! Roar!
The True Dragon and Phoenix rose.
The intertwined energies of the blue and white sword auras surged directly upwards.
The dojo was utterly incapable of stopping it. Under the intense cutting force of the sword auras, everything in their path turned to dust.
But, the phantoms of the Dragon and Phoenix, likely due to their initial fierce struggle, were now unstable. They completely dispersed just after reaching the sky above the dojo.
The rampant sword auras shot out in all directions, and the dojo below became the disaster zone.
Seeing this, Yusei's pupils constricted sharply. He glanced towards Koken, seeming to want them to evacuate immediately.
But realizing there wasn't enough time, he abandoned that thought.
'There was no time to hesitate. If I didn't want to expose Susanoo or Kanna's true nature to protect everyone, then only my newly developed sword skill could manage it.'
The rampant sword auras scattered because there was no stronger sword aura to suppress them, leading to their loss of control.
Earlier, Yusei had controlled his power to match Kaguya's for their clash, resulting in their forces being nearly equal, and thus... losing control.
Yusei's katana returned to its sheath. In an instant, he felt his spirit focus.
The katana was drawn.
Nothing seemed to happen in front of him. But moments later, in the sky above shrouded by the rampant sword auras, countless new sword auras appeared.
The sound of the sword auras cutting through the air, the clear ringing of steel, was enough to make one's scalp tingle.
[Yusei Style: Instant Slash]
The technique perfectly enveloped all the rampant sword auras and swept them towards the sky, far into the distance.
The speed of the sword auras was no slower than rifle bullets, and they didn't lose velocity, only dissipating when their energy was exhausted.
In less than 10 seconds, he saw the clouds furthest from the ground violently scatter, as if sliced apart by something, breaking into dispersed fragments.
This scene left everyone stunned. Even the usually expressionless Shiro tilted her head slightly, looking at Yusei in confusion.
With her knowledge, she was very puzzled as to how her Nii's sword could reach so far.
In response, Yusei could only spread his hands helplessly, "Don't look at me, I don't know either. But I suspect it might have something to do with resonating with Kaguya's sword skill, causing the power to increase exponentially."
The effective range of Yusei's Yusei Style: Dragon's Bite was within 100 meters. Instant Slash was even lower, affecting a 20-meter fan-shaped area in front.
As for why it could now reach the clouds kilometers away, the only explanation he could think of was that it resonated with Kaguya's sword skill.
Everyone looked at the torn clouds in the sky and listened to Yusei's explanation... it still felt somewhat surreal.
Even Koken was full of shock. After all, attacking a target kilometers away, even if imprecisely, was enough to shock any human.
Wasn't this basically a human-shaped missile?
However, hearing it was only possible due to an unknown reaction with Kaguya's sword skill, his expression improved somewhat.
Kanna, on the other hand, was indifferent. She could easily blast away all the clouds in the sky with a single lightning cannon… it wasn't that surprising to her.
'But... it looked like Yusei was very...'
As for Hayasaka and Chika, one had a faint smile, the other was expressionless, but their minds had already wandered off to who knows where.
'Is this some kind of joke? Is this still Ojou-sama/Kaguya-chan I know?'
As the well-mannered Director of the Totsuki Group, Senzaemon quickly regained his composure. He looked at Yusei and Kaguya and finally managed two words.
"Perfect match."
Whether he meant their sword skills or something else remained unknown.
Erina, who had come to broaden her horizons with her grandfather, certainly had them broadened. In fact, this leap in her horizons was a bit too large.
'What kind of script is this? Even those everyday slice-of-life Anime wouldn't dare go this far, right? So why did it really happen?'
Erina felt that her understanding built over more than a decade was being completely shattered and rewritten, 'So there were this many freaks in the world.'
'Then, do legendary youkai and gods also exist?'
That remained unknown. But she did learn one thing for sure.
The two people in the arena... were absolutely not normal.
Kaguya was also somewhat stunned by the result of her actions, feeling a little confused.
But when she heard it was because her sword skill resonated with Yusei's, creating such immense power-
Her pretty face instantly flushed red, lost in who knows what thoughts, appearing absent-minded.
Souji, who had been a spectator all along, puffed out her cheeks into a bun-like shape, looking quite cute.
She stepped forward, the red aura around her surging once more.
"Sheath! We can resonate too! If we create a sword skill together, it will definitely be more powerful than hers!"
Kaguya, who had been immersed in a beautiful fantasy, immediately darkened upon hearing this.
She raised her katana, her expression unfriendly.
"Do you want to be cut down a few times?"