Crossover Anime: Edit everything, join the chat group

Tanjiro mustered all his courage and shouted, "Thank you so much for saving Mr. Rengoku! How can I repay your kindness?"

Gu Chuan paused, turned around, and took a deep look at the red-haired boy with clear eyes and a resilient heart.

“Then let’s try to live on,” he said calmly, “until…the day we meet again.”

As soon as they finished speaking, the three of them stepped into the teleportation portal. With a flash of light, they disappeared completely into the night sky, as if they had never existed.

All that remained were the Demon Slayer Corps swordsmen whose worldviews had been completely shattered, and the remains of the Nichirin Blade, belonging to Upper Moon Three and broken by the flow of filth, silently embedded in the ground, proving that everything that had happened tonight was not a dream.

Kyojuro Rengoku clenched his fists tightly, feeling the power that didn't belong to him, yet was incredibly real.

68 The Confused Butterfly House

"Is this... the end?"

Rin Tohsaka pouted, somewhat unsatisfied. She glanced at the barely perceptible remnants left on the ground after the frozen and then wiped-away debris, a complex emotion welling up inside her. "I thought there would be a fierce battle, but it turned out to be another one-hit kill by this violent woman. How boring."

"Hmph, the weak are only fit to become ice sculptures under my feet."

Esdeath crossed her arms, her icy blue eyes revealing obvious disdain and disappointment. "The progenitor of demons? I hope he won't be like this Upper Moon, unable to even warm me up."

The two fell silent at this point in their conversation.

Immediately afterwards, even though Lin was right next to Gu Chuan, she quickly started fiddling with the chat group.

[Gem Magician]: Hey! Observer, where do we go next? We can't just go back like this, can we? I didn't spend a thousand points just to watch this violent woman show off!

【Sword Dao Shura】: Speaking of which... Miss Rin, aren't you right next to Gu Chuanjun? Why are you using a group chat?

[Gem Magician]: Doesn't this create a better atmosphere?

[March 7th]: Rin is so cool! Esdeath is so cool too! A total knockout! That's Upper Moon Three! Shinobu said before that even the Pillars would have a hard time defeating an Upper Moon!

[Alicia]: Oh dear~ It seems our sadistic queen hasn't had enough fun yet. Mr. Observer, you'd better appease her properly~ Otherwise, she might ruin this world ahead of time.

[Ice Queen]: Hmph, you little brat, mind your own business.

Gu Chuan ignored the usual banter in the group chat; his gaze pierced through the night, looking into the distance.

Through his faint conceptual connection with Shinobu Kocho, he was able to easily pinpoint the location of the "Butterfly Mansion".

"Go see the client."

He calmly began, setting the next objective for the operation: "Let's go to the Butterfly Mansion from Shinobu Kocho. We need to obtain all the information about Muzan Kibutsuji from her."

"Shinobu Kocho? Oh my, I've been wanting to see what Shinobu looks like for a long time."

Rin's eyes lit up. "Judging from the group chat, she seems to be a very gentle girl. What's that saying again? A woman like Yamato 723 Nadeshiko?"

"I'm only interested in the strong."

Esdeath licked her lips, her eyes gleaming with excitement. "If the Demon Slayer Corps has strong members that I can hunt to my heart's content, I wouldn't mind stretching my muscles a bit more."

Gu Chuan did not refute them, which was taken as acquiescence to their request.

……

in situ.

Kyojuro Rengoku, Tanjiro, Inosuke, and Zenitsu looked at each other, as if they had just experienced a bizarre dream.

"Mr. Purgatory..."

Tanjiro murmured, "Who...who are they? Gods...?"

“No,” Kyojuro Rengoku slowly shook his head, gripping his Nichirin Blade tightly. In his eyes, which were as bright as the sun, a flame reignited, burning even more fiercely than before. “They are… the possibility that can change fate.”

He looked up at the golden portal that was still floating in the air, his heart filled with unprecedented awe and hope.

For a thousand years, the battle between the Demon Slayer Corps and Muzan Kibutsuji has been a struggle in the dark, with countless swordsmen's lives used to fill the chasm called "despair".

And today, for the first time, he saw... light from another world that could completely tear this darkness apart.

……

Meanwhile, at the Demon Slayer Corps headquarters, the Butterfly Mansion.

The atmosphere was oppressive, like the deathly stillness before a storm.

Kagaya Ubuyashiki sat under the eaves of the courtyard. His face, ravaged by the curse, was expressionless, but his slightly trembling fingers betrayed the turmoil in his heart.

Before him, all eight remaining "Pillars" of the Demon Slayer Corps were present.

"Ren, are you telling the truth?"

Sound Pillar Yuzui Tengen was the first to speak. Beneath his ornate makeup were a pair of sharp eyes filled with suspicion. "You have a premonition that Purgatory will die in this mission? This is not a joke."

"My intuition never fails."

Shinobu's voice was as gentle as ever, but deep within her beautiful purple eyes lay a cold and solemn expression. "Just now, in the resonance I experienced with my sister's belongings, I saw an extremely ominous vision. That life force belonging to Mr. Rengoku, as bright as the sun, was being devoured by a cold and powerful darkness."

"Hmph, illusion? Intuition?" Wind Pillar Sanemi Shinazugawa scoffed disdainfully, his exposed chest revealing grotesque scars that rose and fell with his heavy breathing. "Butterfly, have you lost your mind from killing so many demons lately? We all know how strong that Rengoku guy is. How could a mere Lower Moon possibly kill him!"

"What if... we didn't encounter the Lower Moon?" Shinobu Kocho asked softly, a question that caused the expressions of all the Pillars present to change.

"You mean... the Upper Moon?" Gyomei Himejima, the Stone Pillar, clasped his hands together, two lines of tears streaming down his face. His voice was heavy as a mountain. "Namo Amitabha... If he really encounters the Upper Moon, Rengoku... is likely to meet a terrible end."

The Serpent Pillar, Obanai Iguro, was coiled in a tree, the white snake "Kaburamaru" wrapped around his neck flicking its tongue uneasily. He stared coldly at Shinobu Kocho with his heterochromatic eyes: "Even so, you underestimate the Flame Pillar. Even if he is no match for him, it will not be difficult for him to escape."

"That's right! Mr. Rengoku is so handsome and powerful, he'll definitely be alright!" Mitsuri Kanroji, the Love Pillar, covered her face with her hands, her cheeks flushed with excitement.

Seeing the expressions of doubt, worry, or disdain on everyone's faces, Shinobu Kocho took a deep breath and dropped an even more incomprehensible bombshell.

"So I requested outside help."

"External reinforcements?" For the first time, the Mist Hashira, Muichiro Tokito, focused his usually somewhat bewildered gaze. "Besides the Demon Slayer Corps, are there any external reinforcements capable of fighting the Upper Moons?"

"Yes."

Shinobu Kocho nodded. Seeing the disbelief in everyone's eyes, she spoke in a statement of fact, leaving no room for argument: "I cannot tell you who they are, nor where they come from. But I know they possess power beyond our comprehension. I have requested the strongest among them, the Observer, to go to Mr. Rengoku's battlefield. If all goes well, that Observer and his allies should be able to…"

She paused, then uttered a sentence that seemed to freeze the air in the entire courtyard.

"...Kill Upper Moon Three."

Dead silence.

A deathly silence that lasted for more than ten seconds, so quiet you could hear a pin drop.

“Haha…hahahahahahaha!”

The first thing to break the deathly silence was Sanemi Shinazugawa's maniacal laughter, filled with mockery and rage. Veins bulged on his forehead, and his eyes were so fierce they looked like he wanted to devour someone.

"Butterfly! I think you've really gone mad! Kill Upper Moon Three?! What kind of daydream are you having! For over a hundred years! How many Pillars' lives have our Demon Slayer Corps sacrificed, and we still haven't been able to kill a single Upper Moon! And now you're telling me that you've found some outside help that appeared out of nowhere, and you think you can kill Upper Moon Three?!"

"This is an insult to all of us pillars!" Obanai Iguro also spoke coldly, her dissatisfaction undisguised.

“Ren, this matter is of utmost importance.” Uzui Tengen also frowned. “We’ve never heard of the external aid you mentioned. We know nothing about their origins, purposes, or stance. To so easily bring their forces into our battle is far too impractical!”

Even the usually silent Giyu Tomioka looked at her with his calm blue eyes, his brows slightly furrowed, as if he wanted to say something, but in the end he didn't speak.

Faced with the questions and challenges from all her colleagues, Shinobu Kocho simply stood quietly without offering any further explanation.

She knew that words were meaningless before the results were in.

She placed all her hopes on that mysterious being called "The Observer".

At this tense and contentious moment—

"quack--!"

A raven, tasked with delivering intelligence, streaked across the sky like a black lightning bolt, its mournful cry echoing as it circled and landed in the courtyard.

The argument abruptly ceased. They all turned their gazes to the crow that had brought the urgent military intelligence.

"Urgent report! Urgent report!"

The raven screeched with its trained, sharp voice, each word like a heavy hammer blow to the heart of all the pillars!

"At the location of the Mugen Train mission, they encountered Upper Moon Three, Akaza! Flame Hashira, Kyojuro Rengoku, engaged in fierce combat with him!"

"what?!"

"It really is Upper Moon Three!"

"Purgatory..."

Everyone's hearts sank to the bottom. The mockery on Shinazugawa Sanemi's face vanished instantly, replaced by extreme solemnity and worry. Kanroji Mitsuri let out a short gasp, tears already welling in her eyes.

Even the body of the 〓诌妻硫九y鏾捌轳蝴蝶忍 couldn't help but tremble slightly.

Sure enough... her premonition came true.

However, before they could recover from the huge shock, Kasugai's next words made everyone present, including Ubuyashiki Kagaya who had been resting with his eyes closed, suddenly open their eyes!

"—Upper Moon Three Akaza, it has been confirmed that (Seven) Erzu|Suzuki Kyuuki has been killed! Confirmed to have been killed!"

"His body turned into ice shards and vanished completely! There was no sign of regeneration! I repeat! Upper Moon Three is dead!"

"boom--!!!"

These words, like a thunderclap from the heavens, exploded in everyone's minds!

The solemnity on Shinazugawa Sanemi's face froze instantly, turning into an incomprehensible, pure blankness.

Uzui Tengen's usually glamorous and confident expression completely cracked.

With a "crack," the Buddhist prayer beads in Beimingyu Xingming's hand were accidentally crushed to pieces.

Obanai Iguro was so shocked that she swayed and almost fell off the tree.

For the first time, a look of horror appeared on Giyu Tomioka's perpetually icy face.

Tokito Muichiro looked up at the sky, his mouth slightly open, as if he wanted to say something, but didn't know where to begin.

Kanroji Mitsuri covered her mouth tightly with both hands to prevent herself from letting out an inappropriate scream. Her beautiful eyes were filled with overwhelming shock and ecstasy.

died?

Upper Moon Three... just like that, he's dead?!

That Upper Moon demon, who had caused countless Pillars to perish for over a century and was like a nightmare, just like that... died?!

"Was it...was it Rengoku who did it?" Uzui Tengen's voice was extremely hoarse as he asked the only and most reasonable guess in everyone's mind, "He...he and Upper Moon Three...died together?"

This was the only explanation they could accept.

However, the raven's subsequent report utterly shattered their last and only piece of common sense.

"Report! Flame Pillar Kyojuro Rengoku has suffered a fatal penetrating wound and was once on the verge of death!"

"But... but then he was instantly healed by three unidentified visitors from another world using miraculous methods! He was completely unharmed!"

"The ones who slew Upper Moon Three were none other than these three visitors from another world! The process... the process is indescribable! In an instant... Upper Moon Three was reduced to ashes!"

The courtyard fell into an even more terrifying, deathly silence than before.

All the pillars stood frozen in place, like petrified statues. Their brains had completely lost the ability to process information.

Visitors from another world... miraculous healing... in an instant... vanished into thin air...

Every word was frantically assaulting their worldview, which had long been hardened by blood and death.

Looking at her colleagues' expressions, as if they had seen a ghost, Shinobu clenched her fists tightly, her nails digging deep into her palms. For the first time, a dazzling light called "hope" burst forth from her purple eyes, which always carried sadness and tenderness.

He did it! That man, he really did it!

Just then, the raven preened its feathers, raised its head again, and, in a tone sharper and more urgent than before, delivered its final and most crucial report—

"—Final report! The three visitors from another dimension are moving towards headquarters! One of them claims to be an observer!"

"They...request a meeting with the Demon Slayer Corps Master!"

69. Head to the Butterfly Mansion for a meeting.

"Is this... the end?"

Rin Tohsaka pouted, somewhat unsatisfied. She glanced at the barely perceptible remnants left on the ground after the frozen and then wiped-away debris, a complex emotion welling up inside her. "I thought there would be a fierce battle, but it turned out to be another one-hit kill by this violent woman. How boring."

"Hmph, the weak are only fit to become ice sculptures under my feet."

Esdeath crossed her arms, her icy blue eyes revealing obvious disdain and disappointment. "The progenitor of demons? I hope he won't end up like this Upper Moon demon, unable to even warm me up."

The two fell silent at this point.