Crossover Anime: Starting with Bankai from Demon Slayer

While admiring the moonlight from his hiding place, Lower Moon Two Rokuro looked at his arm, which hadn't fully grown back yet, and felt incredibly frustrated.

What's wrong with that kid...? Why did his cut completely stop my flesh regeneration? Even after so many days, I still haven't fully recovered...

He wasn't the type to enjoy fighting and didn't know much about the Demon Slayer Corps, but he had heard that they possessed an Origin Breathing Technique that could inflict great damage on demons.

But weren't all the inheritors of that breathing technique killed by that lord long ago?

And this kid looks exactly like that woman—a Wind Breathing swordsman—how could he...?

噔——!

The sound of a pipa (a traditional Chinese stringed instrument) filled the air.

Lulu felt his feet suddenly give way, and his whole body fell in!

At the same time, three other ghosts also heard the sound of the pipa.

The Lower Moon Three, Sick Leaf, was wandering aimlessly through the mountains and forests, enjoying the pleasure of slaughtering lost travelers, when suddenly her attention was drawn to the ethereal sound of a pipa.

Kame, the sixth celestial being, was tidying up the decorations in his home when he was suddenly pulled into an unknown space by a force after hearing the sound of a pipa.

There is another one, Lower Moon One: Nightmare.

He, on the other hand, was much more relaxed and cheerful, admiring the tattoos on his face in the mirror with a morbidly satisfied smile on his lips.

After the pipa music started, he didn't seem surprised. He calmly opened his arms and fell to the ground.

Pfft!Pfft!Pfft!

A moment later, apart from Nightmare maintaining her elegance and fervor, she landed smoothly.

The other three demons were roughly thrown onto a flat tatami mat, falling in a sorry state.

They scrambled to their feet almost immediately, looking around at the strange area with panic and bewilderment.

Infinite City.

This is a nightmare space that completely overturns the laws of physics.

The massive and ancient wooden structure is intricately interwoven, with countless corridors, pavilions, paper doors, and beams stacked at incredible angles, suspended in the air, forming a vast and chaotic labyrinth.

Gravity loses its meaning here, and the sense of direction—up, down, left, and right—is completely distorted.

The dim yellow paper lanterns cast a faint glow in the corners or overhead, and the air was filled with the smell of rotting wood and a faint stench of blood.

Apart from Nightmare, the three Ghost Moons were all somewhat uneasy, looking around anxiously.

"What's going on... are they all waning crescents?" Lower Sixth Moon Nue thought anxiously, "Where did Lower Fourth and Lower Fifth go? Why are there only four waning crescents?"

He looked up and saw a woman in black sitting there, her eyes obscured by long black hair, holding a pipa that exuded a bloody aura.

"Where is this? Is this that woman's blood demon magic?"

Amidst the unease of the three Ghost Moons looking at each other in disbelief, the shadows in the space subtly shifted.

A chilling feeling washed over me.

A woman's figure emerged silently from the shadows.

She wore a magnificent dark kimono, the intricate patterns gleaming in the dim light, revealing the exquisite stitches. The wide sleeves swayed gently with her steps, revealing a section of her pale wrist.

Her long, black hair was neatly styled and pulled back, and her face was flawless, like the finest porcelain.

If it weren't for those scarlet, inhuman vertical pupils, Fu Nue would have almost thought he was seeing some courtesan from a brothel.

"Boow your head and kneel down."

Om-! !

A strong sense of fear surged through me; the dread in my blood began to take hold.

Several Ghost Month figures almost simultaneously and uncontrollably knelt down, prostrating themselves on the ground with humility and reverence.

It's Lord Muzan's voice! Oh no! Because his posture and aura were different, I didn't react in time to bow down!

Fu Nue wanted to slap himself twice. Why was he so stupid? How could he not recognize that this was Lord Muzan!

The woman before me is none other than the progenitor of all demons and the source of all evil—Kibutsuji Muzan!

This is not his true appearance, but a disguise he made to hide his identity. He usually appears in male form, so it's no wonder that Fu Nue didn't recognize him at first.

"You are indeed very stupid, and it's not just about this." Muzan's voice was full of coldness.

Huh? Fu Nue shivered.

How could Muzan-sama read my thoughts?

Before he could speak, Muzan spoke again coldly:

"Lower Moon Four and Lower Moon Five died, and they both died on the same day."

"There's only one thing I want to know: why is the waning crescent moon so weak?"

"Is becoming one of the Twelve Demon Moons the end of it? Why didn't you go and eat more people? Why didn't you become stronger? At least become something useful to me."

"For the past hundred years, the Upper Moon demons have never changed. They are the ones who have killed wave after wave of demon-hunting Pillar-level swordsmen. And what about you?"

His voice and his gaze were like a freezing wind that swept over the lower crescent moons, making them tremble uncontrollably.

Muzan, with a look of disgust as if he were looking at trash, fixed his gaze on Rokuro.

"Rokuro." Muzan's voice was so soft it sent chills down your spine: "Why is your aura so weak? Like a dog whose spine has been broken!"

He doesn't need to touch anything; with just a thought, he can violently invade Lulu's consciousness!

"Ugh—!"

The lulu suddenly let out a shrill scream, clutching its head tightly with one hand, enduring the pain as if a red-hot iron were being pierced directly into its brain!

His memories were brutally torn open and flipped through by an absolute force! And he was powerless to resist in the slightest!

[Osaki Hachiman Shrine... a young demon slayer... a long, menacing gray-black sword...]

These images flooded into Muzan's consciousness like a tidal wave, causing him to frown slightly.

This kid looks familiar... Then, he suddenly realized.

As the Lower Rank 5 Rui, whom he valued and cared for the most, Muzan specially reserved more demon blood for him and left a seed connecting his consciousness on him, just so that he could send messages to this little devil in a timely manner.

In his final moments of exhaustion, he was enraged and naturally checked the images in the seed of his memories.

In that final scene, besides the annoying earring-wearing boy Tanjiro and the swordsman using Water Breathing...

This stern-faced young man was also present...

He further stirred up the sea of ​​consciousness, completely ignoring the boy's painful cries, and carefully observed everything about the boy.

That serrated longsword, radiating an ominous aura, can actually devour the power of demons?!

Muzan's flawless face was now furrowed in deep frown.

What is this? Is it a new weapon of the Demon Slayer Corps? Or a new breathing technique?

This was a change he had never seen before in his long life, and a trace of cold annoyance swept across the depths of his scarlet vertical pupils.

"waste."

As the cold verdict fell, Rokuro's body was suddenly lifted up by Muzan Kibutsuji's twisted demonic hand and gripped tightly in his palm.

"Why do you want to run away? He's not even a pillar!"

"I'm so sorry! Please...please forgive me, Lord Muzan!! I really..."

puff!

After a violent crushing, Rokuro's body was actually crushed in mid-air by Muzan Kibutsuji!

The ghost blood splashed down, landing on the other three Ghost Moons.

While it's true that demons cannot kill each other, this doesn't apply to Muzan, the King of Demons.

His twisted, demonic hands were covered with countless hideous maws, which quickly devoured the mangled flesh and blood of the windlass, as if such a demon had never existed in the world.

"I think... for the Twelve Demon Moons, the waxing crescent moon is enough. I really can't see the point of your existence, don't you think?"

The expressions of horror on Bingye and Fuye's faces froze instantly, fear and anger surging within them at the same time, they simply could not believe what they were hearing.

Meanwhile, Lower Moon One, Nightmare, had a flushed face and her body trembled violently.

"Lord Muzan! My purpose in existence... is to become your most convenient tool!"

"Eat away all your sorrows! Clear away all obstacles in your way! Drag those reckless demon hunters into an eternal nightmare of torment! Let them wail in endless despair! Is there anything more important than this?"

"This is the only value of my life! This is the whole meaning of my existence!"

"If you feel we are no longer of any use, then my purpose is merely to satisfy your bloodlust and quell your anger..."

"This is...so wonderful..."

He held his head high, arms outstretched, his cloudy eyes almost bulging out of their sockets.

His lips stretched into an inhumanly wide arc, and it was hard to tell whether the smile was genuine or deliberately flattering, but the fervent expression on his face was truly difficult to imitate.

"Shut up!! Are you trying to get us killed?!"

"Shut up! You madman!"

The sick leaf and the cauldron were terrified by this crazy declaration and instinctively screamed.

Muzan narrowed his eyes, sneered, and raised his twisted demon claw high.

"...a smooth-talking brat."

boom!boom!

However, the Ghost Claw's targets were Disease Leaf and Pot Nue.