Crossover Anime: Starting with Bankai from Demon Slayer

Chapter 104 Fierce Battle: The Upper Moon One

Is it Kokushibo?

Feiniao silently drew the weapon.

According to Komashi, of the existing Upper Moon demons, the only one that truly needs to be watched out for is Upper Moon One, Kokushibo.

"He's not an ordinary demon; he's the strongest swordsman in your Demon Slayer Corps, Yoriichi Tsugikuni's older brother." Asuka was somewhat surprised when Komashi said this.

But now, judging from the aura of perfect harmony between man and sword emanating from the other party, this statement is indeed true.

Kokushibo slowly stood up, his movements elegant and deliberate, exuding an indescribable majesty.

He turned around, revealing three pairs of golden eyes on his resolute face.

"The rhythm of your breathing..." Kokushibo's six eyes locked onto Asuka, his voice carrying a decaying quality that spanned hundreds of years: "The aura emanating from you reminds me of some...not-so-pleasant things."

"Are you referring to the Breath of the Sun, Kokushiro Iwakatsu?"

Despite being retorted by Asuka, Kokushibo did not show any strong emotional fluctuations and remained very calm as he observed Asuka.

Komashi said this guy was petty and easily mocked, didn't he? Asuka frowned.

"A strange blade... a strange power. You're not using pure breathing techniques; what exactly is that chaotic power within you?"

Want to know?

As the bird slowly lowered its body, its eyes gradually turned as cold as iron beneath its somewhat messy black hair.

"You can try it yourself."

"Laughing... what an arrogant junior."

Kokushibo coldly drew the long sword called "Hollow Cry God".

As the blade was withdrawn, countless blood-red eyeballs spun wildly on its surface, and eerie moonlight flowed across the edge.

In the silent Infinite City Dojo, the hems of their robes fluttered even without wind.

That was the murderous aura surging between the two of them.

clang-!!

Neither side held back from the start, unleashing swift and vicious strikes.

Swords clashed, long sabers hummed, and the sound of metal clashing echoed through the night sky.

It must be said that Kokushibo truly lived up to his reputation as a swordsman who had honed his skills for hundreds of years. Every move he made was tricky and unpredictable, and he was indeed incomparable to the other Pillars when they practiced.

He had already thoroughly mastered the swordsmanship of the Demon Slayer Corps.

Even when Asuka uses five different sword styles, alternating unpredictably, he can always find a way to counter them immediately.

"I have only ever seen one human who can master breathing techniques and use sword techniques to your level."

Kokushibo unleashed a high-speed horizontal slash that surpassed the limits of the naked eye, carrying countless subtle moon-like blade energy, aimed directly at the bird's throat!

【Breath of the Moon - Dark Moon - Palace of Twilight】

The bird twisted and spun, tearing through the air as it retaliated with a spiritual pressure slash that roared like a dog's bark!

boom!!

A violent storm of spiritual pressure and the aura of the moon blade exploded in the center of the dojo, instantly turning the surrounding wooden pillars into dust.

That was a clash powerful enough to make the entire Infinite City tremble.

But Kokushibo had no intention of stopping there. The long sword in his hand, covered with eyeballs, was unleashed once more: [Breath of the Moon - Lonely Moon in the Night - Mugen].

A dense barrage of crescent-shaped slashes surged forth like a tidal wave.

This wide-ranging and indiscriminate attack should have instantly shredded the opponent, but Asuka's performance caused Kokushibo's eyes, which had been dead for a hundred years, to slightly narrow.

He moved with incredible ease through the gaps in those crescent-shaped slashes, his movements defying all logic.

If I had to describe it, it would be like walking in the air.

Every time the crescent slash was about to touch him, this kid somehow borrowed strength from somewhere and kicked off the ground, thus dodging the attack.

"How is this possible? Are you even human?"

"He's definitely more human than you." Asuka kept Komashi's advice in mind, and kept trying to provoke Kokushibo with words, and attacked him again.

The battle continued, and the entire dojo had been leveled by the sword energy of the two.

Asuka's body began to show wounds of varying depths, but surprisingly, his aura not only did not weaken, but instead became even stronger.

"Your sword is your blood demon magic, isn't it?"

Asuka slashed down fiercely, and the raccoon managed to cut halfway into the opponent's blade!

A sense of unease rose from his hand, and Kokushibo quickly exerted his strength to deflect the flying bird, his eyes growing even colder.

This feeling isn't good.

The Hollow Cry God is a demonic blade forged from the blood and bones of Kokushibo; even if severed, it can regenerate instantly.

This was originally a weapon that Kokushibo could use without restraint when fighting Demon Slayer Corps swordsmen, without worrying about the blade breaking, but now it has become his biggest problem.

Each time the blades clashed, Kokushibo felt a chill run down his spine.

He had already heard Muzan mention that the black-haired swordsman in the Demon Slayer Corps could devour demons, which must be referring to this sword.

Each time the takoyaki cuts through Kokushibo's blade, it greedily devours the opponent's demonic power.

Even though Kokushibo had been very careful to avoid any sword wounds, his body was still losing power uncontrollably.

Moreover, the trouble doesn't end there.

The bird's breathing rhythm made him increasingly uneasy.

As the battle continued, his initially somewhat awkward breathing, forced by the intense combat, began to become increasingly refined and profound...

Now, Asuka's self-created Sun Breathing has the oppressive aura of a blazing sun, making Kokushibo's familiar feeling even stronger.

Kokushibo's six eyes widened simultaneously, and his usually calm voice trembled for the first time due to extreme shock.

"This is that guy's... How were you able to reach that level?"

The bird's figure disappeared, and the only response he received was the raging, dark red flames that rushed towards him.

No, it didn't disappear.

It was because the speed was so fast that it left a distorted line of fire in space.

Kokushibo immediately swung his long sword to defend himself.

clang-!!!

For hundreds of years, he had never felt such an oppressive slash!

The domineering force surged down his sword hilt, causing his bones to crack and pop with a series of loud bangs!

boom-!!

The dojo floor was completely overturned, and flames mixed with spiritual pressure shot into the sky, dispelling the gloom in the Infinite Castle.

In that light, Asuka and Kokushibo passed each other.

Kokushibo froze on the spot.

The illusory crying god in his hand, the demonic sword covered with eyeballs, was actually cut in half!

On his chest, a deep, bone-revealing wound with burn marks ran diagonally across his entire torso.

The golden flames clinging to the wound are frantically devouring his cells, making his once-proud regeneration rate extremely slow.

"Crimson Blade...no, you didn't even make the Nichirin Blade burn? How did you manage that?"

Kokushibo slowly turned around, his six eyes fixed on Asuka, uttering a question he couldn't understand.

His tone was filled with jealousy, but even more so with an almost twisted excitement.

"It seems... I finally have the chance to test my full power in this form..."

"1

Just as Asuka was severely injuring Kokushibo, good news also came from other corners of the Infinity Castle.

In the deep corridor, Mist Pillar Muichiro Tokito moved freely amidst Usui Uonuma's attacks, like a wisp of smoke that could not be grasped.

"Damn it! How come you can dodge my attacks so easily!" Uonuma Yusui, already covered in wounds, went berserk and wildly stabbed everywhere with his short spear.

This place was specially created for him by Nakime, which could isolate him from the sight of those human swordsmen, naturally giving him an advantage.

Furthermore, after becoming Ghost Moon, he can blend his body into the shadows and appear in all sorts of unexpected places. Combined with his dimly lit home ground, he should be invincible.

However, his sneaky fighting style, which relied on the terrain to launch surprise attacks or to defend and counterattack, was completely powerless against the agile Muichiro.

"Excuse me, what's your name again?"

Muichiro's voice was as cold as ice.

"Breath of Mist - Fourth Form: Flowing Slash".

In that instant, a thick white mist, so dense that one could not see their own hand in front of their face, suddenly erupted in the originally narrow corridor.

Although Uonuma Usui is a blind demon, he possesses extremely strong spatial perception thanks to his transformation into Oni-zuki.

But now, he felt his mind was in chaos, and he couldn't see anything clearly.

He frantically brandished his short spear, trying to cleave through the fog.

However, within this mist, a ghost-like figure silently darted past.

puff--!

The fog dissipated.

Muichiro was already standing behind the ten swords, slowly sheathing his sword.

"How... is this possible...?"

Uonuma Umi felt as if his throat was filled with a pool of gurgling blood, and struggled to kneel on the ground.

Muichiro didn't even glance back at the ashes behind him. He simply touched his swollen cheek, which was covered with cloud-like patterns, and muttered to himself, "There's a very unsettling aura coming from that direction... Is that Asuka?"

Kang