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"Did we… arrive too late?"
Tomioka Giyu, Mitsuri Kanroji, Obanai Iguro, and Muichiro Tokito arrived almost simultaneously, and their hearts sank when they first saw the mansion, which looked as if a furious storm had passed through it.
However, when they saw Naruto standing with his nichirin blade amidst the ruins, and Gyomei Himejima sitting cross-legged beside Naruto, they immediately felt relieved.
They had indeed arrived late, because it seemed the battle was already over.
Boom!
Just as they were about to go over and greet Naruto and Gyomei Himejima and inquire about what had happened, they suddenly heard the crisp sound of a biwa ringing in their ears.
The next moment, the ground beneath their feet suddenly turned into open wooden doors, like gaping mouths, instantly swallowing them before they could even react.
It wasn't just them.
Naruto and Gyomei Himejima, Master Ubuyashiki Kagaya's family and the two guests he had invited, as well as the Demon Slayer Corps members in and near the mansion, were all swallowed into the Infinity Castle after hearing the biwa sound.
"What… is this?"
After Tomioka Giyu and the others fell into the Infinity Castle, they looked at the dimly lit city around them, all utterly shocked and completely bewildered by what had happened.
However, when they saw demons constantly appearing throughout the city, they immediately reacted.
This place was the demons' headquarters!
Nakime was also very dutiful. Not only did she capture everyone in the Ubuyashiki residence, including those nearby, into the Infinity Castle as per Muzan's instructions, but she also thoughtfully made arrangements for Muzan.
First, she teleported Naruto, who had slain Kokushibo, directly in front of Muzan, because in her opinion, this person was likely the one Lord Muzan most wanted to kill right now.
As for the others, Nakime sent them all to various corners of the Infinity Castle, planning to bring them to Lord Muzan one by one after Lord Muzan had dealt with Naruto.
Nakime believed that Lord Muzan would surely praise her arrangements afterward.
Muzan: I fucking thank you!
"Haha, I see it!"
Naruto opened his eyes as he fell, laughed loudly, and then landed in front of Kibutsuji Muzan.
After the battle with Kokushibo, Naruto had finally comprehended the Transparent World, and as he landed in front of Kibutsuji Muzan and saw the reflection of Kibutsuji Muzan's body structure in his mind, he immediately understood what this creature in front of him was.
The King of Demons—Kibutsuji Muzan!
No more words were needed.
Naruto immediately drew his nichirin blade, gripping the hilt with both hands, and unhesitatingly launched an attack on Kibutsuji Muzan, charging forward with the speed of a gale before unleashing a spinning slash that cut straight toward Kibutsuji Muzan.
Wind Breathing, Eighth Form: Primary Gale Slash!
"A meaningless att—"
Kibutsuji Muzan was about to mock Naruto's overestimation of his own abilities, but he suddenly felt danger from the approaching attack. His expression changed, and he immediately dodged backward.
Hiss!
Kibutsuji Muzan retreated very quickly, but Naruto's slash still left a shallow wound on his abdomen, and that wound emitted scorching steam, as if it were burning.
More importantly, the wound showed absolutely no signs of healing.
"How is that possible?!"
Kibutsuji Muzan looked at the wound on his abdomen, a hint of fear flashing in his eyes, as if he had suddenly thought of something terrifying. However, he quickly gritted his teeth and said, "No, it's impossible. Such a monster cannot appear in this world again!"
Thinking this, Kibutsuji Muzan swung his arms, which instantly transformed into two retractable thorny whips, striking at Naruto like lightning.
Naruto instinctively dodged sideways and swung his nichirin blade, blocking one thorny whip's attack. However, his shoulder was grazed by the other thorny whip, leaving a wound, and only then did he hear the piercing sound of air being torn.
"So fast!"
Naruto dodged backward, instinctively creating distance from Kibutsuji Muzan. He hadn't even seen the previous attack and had only narrowly avoided it and swung his blade purely on instinct.
Moreover, he had only heard the sound of the attack after he was injured, indicating that its attack speed had exceeded the speed of sound.
This made Naruto realize that the strength of the Demon King in front of him far exceeded his imagination.
"Haha, I knew it!"
Kibutsuji Muzan couldn't help but laugh out loud when he saw Naruto get hit by his attack.
If it had been that man from before, he definitely would have avoided the previous attack. The fact that this young boy couldn't completely avoid it meant that he was far from as strong as that man.
In other words, he had no need to worry.
"In that case… then die!"
After regaining his confidence, Kibutsuji Muzan attacked Naruto again, and the thorny whips transformed from his arms once more whistled out.
Naruto's eyes narrowed, and he swung his nichirin blade, unleashing several tornado-like spiral wind blades that altered the thorny whips' attack trajectory.
Then he leaped toward Kibutsuji Muzan, swinging a massive, self-revolving wind blade from above.
Wind Breathing, Fifth Form: Cold Autumn Mountain Wind!
"Hmph!"
Muzan scoffed, then slightly hunched his body. The muscles on his back writhed, extending nine tubes similar to the thorny whips formed from his arms.
They instantly shattered the wind blades surrounding Naruto and simultaneously attacked him.
Seeing this, Naruto fiercely swung his nichirin blade, unleashing several wind blades to block the incoming thorny tubes for a moment.
Then, using the force of his swing, he rotated in mid-air, continuously swinging his blade.
Wind Breathing, Second Form: Claws—Purifying Wind!Wind Breathing, Third Form: Clear Storm Wind Tree!Wind Breathing, Sixth Form: Black Wind Mountain Mist!
Naruto continuously unleashed the three Wind Breathing forms, repelling all the incoming thorny tubes, and his body came within a meter of Muzan.
Then his crimson nichirin blade slashed toward Muzan's neck.
"Don't even think about it!"
Muzan knew that although Naruto's strength was not as great as Yoriichi Tsugikuni's, his blazing nichirin blade was even more terrifying than Yoriichi's had been back then. He absolutely could not be cut by it.
Boom!
Just as Naruto's blade was about to strike Muzan's neck, countless mouths on Muzan's body suddenly opened simultaneously, and a powerful shockwave erupted from his body, blasting Naruto dozens of meters away.
The impact left Naruto dizzy, his vision blurred, and his footing unsteady.
Muzan gave him no time to recover and charged forward, the thorny whips in his arms and the thorny tubes on his back attacking together.
Naruto closed his eyes, activated the Transparent World, and swung his blade defensively.
At first, his body couldn't keep up with Muzan's attacks, and he quickly sustained several wounds.
But as time passed, the Transparent World reflected Muzan's attacks with increasing clarity, and Naruto's body gradually began to keep up, eventually even counterattacking.
"Impossible!"
Muzan looked at Naruto, who was growing increasingly adept at handling his full-force assault, and shouted unwillingly,
"Why, even though my attacks have sent my blood into your body, do you show no reaction at all? My blood should be a potent poison capable of destroying human cells!"
"Of course—because the blood in my body has already ignited!"
Naruto shouted back as his blade grew faster and fiercer, instantly severing several thorny tubes extending from Muzan's back.
The severed tubes, like the wounds on Muzan's body, showed no signs of regeneration.
Fear resurfaced in Muzan's heart.
"Nakime!"
Muzan called out in his consciousness, ordering her to separate him from Naruto and throw Naruto out of the Infinity Castle.
No response came.
Muzan immediately extended his senses and discovered that Nakime was being controlled by another demon.
That demon even smiled provocatively at him through Nakime's will.
"Useless!"
Muzan raged and attempted to wrest control back through the blood curse.
Pfft!
While Muzan was distracted, Naruto's blade struck, severing Muzan's left arm at the shoulder.
"Damn it!"
Muzan turned and fled.
Naruto immediately unleashed a powerful technique, a single slash that created a howling blade storm meant to engulf Muzan.
Wind Breathing, Eleventh Form: Storm Force!
"Don't even think about it!"
Muzan detonated his body, scattering fragments in all directions.
"Now!"
A female voice rang out.
Gyomei Himejima, Tomioka Giyu, Obanai Iguro, Muichiro Tokito, and Mitsuri Kanroji appeared at once.
They attacked simultaneously.
Stone Breathing, Fourth Form: Volcanic Rock – Rapid Conquest!Water Breathing, Eleventh Form: Dead Calm!Serpent Breathing, Fifth Form: Winding Serpent!Love Breathing, Fifth Form: Wavering Love – Wild Claws!Mist Breathing, Sixth Form: Lunar Dispersing Mist!
Every fragment of Muzan was struck.
Muzan reassembled, glaring venomously at them.
"You think this can kill me—"
Pfft!
A hand pierced his body from behind.
"You have nowhere left to run, Kibutsuji Muzan!"
"Tamayo!"
Muzan lashed out, sending her flying, but her hand remained inside his body.
"What did you do?!"
"Guess."
Muzan fled again.
Tamayo ordered Yushiro to move the Infinity Castle toward the surface.
As Muzan destroyed Nakime's brain.
The Infinity Castle collapsed.
Everyone was expelled.
Muzan tried to split again but failed
Wind Breathing, Tenth Form: Storm!
Naruto cut through Muzan's five brains and seven hearts.
Muzan split again.
The Hashira restrained every piece.
Shinazugawa Sanemi, Kyojuro Rengoku, and Uzui Tengen arrived and pinned the remaining fragments.
The mini Muzans screamed in terror.
At last, all eyes turned.
Master Ubuyashiki Kagaya, supported by his wife, walked forward.