(Dawn of the Last Day)
(24 hours remain)
(Training Grounds)
Now being the next day, exactly after breakfast, the group kept training, for Caleb, he was training harder now going faster and stronger, also hearing "I'll Make a Man Out of You".
"We must be swift as the coursing river, with all the force of a great typhoon, with all the strength of a raging fire, mysterious as the dark side of the moon!" Caleb said while singing with determination to defeat Muzan and saving everyone.
Meanwhile the girls were speaking about the Demon Slayer uniforms for girls.
"Mitsuri's uniform is very revealing, specially her chest." Gemini said.
"Even Shinobu told us that her first uniform was changed." Cancer said.
"Well, I'm not bothered in having my chest exposed when I use my bathing suit or Dana Iclucia's cosplay." Aria said before pulling out her phone and showed to the Zodiacs and Elementals girls the photo about herself wearing a midriff baring traditional Eternian outfit, bridal gauntlets, detached sleeves, faulds, and knee high sandals, and her hair is tied in twin tails, decorated with white ribbons and a hairband.
"Wow, that cosplay looks amazing." Skye said.
"Also you look beautiful like that." Assana added.
"Thank you." Aria replied.
Now back in the training, Caleb managed to dominate the Total Concentration Breathing and in the training he was having a training battle against Sanemi with wooden swords (Caleb is shirtless), the sword swings of Caleb were becoming faster and stronger, also he was dodging quickly the attacks from his opponent with an upper swing Caleb managed to disarm Sanemi before jumping and slamming his sword which hit Sanemi half-knocking him out.
"Phew…" Caleb said.
"You showed me a lot of strength and wisdom in battle, now recover energies." Sanemi told him.
"Yes sir." Caleb nodded.
Then Caleb was back with his shirt and also received lunch, the lunch of this time was ramen soup, sushi (loki, tuna and teriyaki rolls), okonoyami (Kelsey's courtesy) and roasted onigiri.
The others have their lunches, Aries a beef steak, Taurus a double cheeseburger with french fries, Gemini Altair a Pho (a vietnamese rice noodle soup) with cá kho to (a Vietnamese fish stew), Cancer a croque monsieur, crepe and steak tartare, Leo a roast cheese sandwich, for Virgo sweets like candies, lollipops and chocolates, Libra a Tonkatsu (pork chop, one centimeter wide, breaded, fried and chopped), Scorpio an American breakfast (toast, fried egg, bacon and pancake) and a French toast, Sagittarius a porco preto dish (pork meat), Capricorn a paella, Aquarius a curry with rice and Pisces a pizza.
Aidan a spicy spaghetti, Corona has El Diablo Big Angus Burger, Assana a whole grilled fish and shrimp cocktail, Skye a pudding a la mode (a dish with flan covered with syrup on top, it also has strawberry ice cream, whipped cream and pieces of fruit such as strawberry, banana, kiwi and a whole cherry), Terran a sandwich (which has ham, cheese, mayonnaise, mustard, tomato and avocado), Aaron a parfait (a dish made of pate a bombe, whipped cream, jelly, nuts and some fruits), Blake a cheese risotto, Keith a mixed salad, Alban a vanilla ice cream ball surrounded with whipped cream and has eight slices of banana around the ice cream ball (similar to the ice cream prepared by Bulma for Beerus, but vanilla flavor instead of strawberry), Krisi is a strawberry sundae, Winter a Cookie Comtessa which a cake-like dish made with ice cream and cookies, Jupiter a tower of pancakes dipped in maple syrup and Tetsu a dish of sushi (like classic surimi, Tampico roll, Maki roll, shrimp California special, salmon philadelphia special, tuna roll, looky roll which is wrapped with bacon and teriyaki roll, two of each one).
Lastly Aria is having meatloaf with veggie sushi and mashed potatoes, Luke has swiss enchiladas, tortilla soup and tacos stuffed with chicken, Sara has wonton soup along with chop suey and spring rolls, and Seth has turkey legs along with mashed potatoes and white fusilli pasta while the others have their meal too.
"Today we're gonna need enough energy specially for tonight!" Seth said.
Now after ending the lunch.
"Also, I have created something, UV light grenades." Aquarius said as he showed purple flash grenades.
Each member of the Demon Slayer received their UV light grenades.
"Now only remains to wait until the night." Caleb said as he watched the horizon, feeling a bit of anxiety for the final battle.
(Academy of the Omniverse)
Meanwhile in the principal's office, Lhantis was seeing that everything is going fine in the Taisho Period, lives restored and successful trainings, but when he opened a door two white mannequins with black robes appeared but at the same time, those are vessels, but also an indigo-colored D3, a tag with an indigo crest which has the symbol of a six-pointed star with a circle in middle and an white-grayish D3, a white-grayish tag with the crest which has five spheres barely forming a pentagon and small circle in the middle.
"Two vessels? Two Digivices? Two Crests?" Lhantis questioned before realizing something. "Ienzo hasn't tried this before, but we must give a try to bring Rei and Ila, especially for the battle."
(Night of the Last Day)
(12 hours remain)
(Ubuyashiki Mansion)
Meanwhile in Ubuyashiki Mansion, Sol and Luna are speaking with Kagaya Ubuyashiki seeing that Kagaya's condition is hardest to struggle.
"Please take care of Hinaki and Nichika Ubuyashiki, even if we will sacrifice ourselves, we want them to continue having a future just like the Pillars." Kagaya replied weakly as he coughed.
"Of course." Sol said.
"Come with us." Luna told Hinaki and Nichika who nodded in understanding before going with the parents of the Pierce twins.
(Taisho Period: Training Grounds)
When the night started, Caleb set 12 hours on the timer from his phone.
"12 hours until dawn." Caleb said.
Later, Keith M prepared elixirs for the team members who don't have nichirin swords or effective weapons for the demons, said elixir would allow the heroes to kill the evil demons without using nichirin swords.
Some hours passed and meanwhile, Sanemi and Aries were walking stairs down but suddenly they felt a presence and the Wind Pillar grabbed something tightly and when he opened his right hand it revealed to be one spying eye of Nakime which was crushed showing some gore.
*Tension (Super Mario Galaxy)*
"What the crap is this!?" Sanemi asked.
"Oh no…!" Aries gasped. "We must go faster to the Ubuyashiki Mansion!"
(Academy of the Omniverse)
Lhantis and Najarin were walking in the corridors until Najarin heard something.
"Windslash!" Najarin sent an energy blade made of wind which sliced Nakime's spying eye.
Then Lhantis came and grabbed the eye before examining it.
"Oh no…!" Lhantis gasped.
"In the name of Kiru, what is this…!?" Najarin asked.
"I recognize the symbol of an upper moon demon." Lhantis said and then the eye crumbled into ashes. "We were spied on! I must warn the heroes who are here!"
"I'm going to Perim, I'll need the tribes to join the battle!" Najarin said.
(Taisho Period: Ubuyashiki Mansion)
Now back there, close to the mansion, mist started to appear and from there Muzan Kibutsuji in person appeared and was walking towards the mansion and opened the door as the mist continued spreading and Muzan was walking slowly, with his Michael Jackson-themed outfit included, then Kagaya heard Muzan's steps before turning to see the King of the Demons who continued approaching until finally seeing both Ubuyashiki, husband and wife.
"Hello. So, you've come." Kagaya said, greeting Muzan. "It's the first time we see each other, right, Muzan Kibutsuji?"
"You're in an awful state, Ubuyashiki." A calm Muzan told him.
"Muzan Kibutsuji." Kagaya said. "Finally you have come to me, you are now before my eyes, you are the demon that our clan, the demon slayers and the chosen one by destiny's crest has pursued for a thousand years."
Then Kagaya, even half-blind, could feel his presence before turning to see his wife.
"Amane, tell me what does he look like?" Kagaya asked her.
"He looks like a man in his mid to late twenties, but his eyes are light pink and his pupils are vertical slits like a cat's." Amane answered.
"Oh, I see, I was certain, I expected you to come." Kagaya said before explaining to Muzan. "You must be terribly angry at me and the Ubuyashiki clan, so I figured that you would come to kill me yourself."
"Indeed, I'm disgusted from the bottom of my heart, Ubuyashaki." Muzan said before explaining. "For a thousand years, your clan has never known its place and has interfered with me constantly, but now I find its leader in this state."
The King of the Demons continued seeing Kagaya's critical condition.
"So loathsome, incredibly ugly, you already smell like a corpse, Ubuyashiki." Muzan said.
However, despite his condition, Kagaya managed to get up but his body felt very weak, like his bones were cracking.
"I… I suppose I do. Six months ago, a physician told me I would die within a few days." Kagaya said as he was supporting himself with his arms before coughing blood and shooting blood from his right damaged eye. "And it's all because I burn to defeat you, Muzan."
"You might not know it, but I'm going to kill you now and tonight that fragile dream shatters." Muzan said.
"You and I are from the same bloodline. However, I suppose since you were born over a thousand years ago, we aren't closely related." Kagaya said.
"I do not feel anything about that." Muzan said before asking. "What are you trying to say?"
"The clan gave birth to a monster like you and for that it was cursed." Kagaya said before explaining. "All of the children born to that house were weak and soon died, when the clan was about to die out, a priest offered counsel. He said a demon had come from the same bloodline, that we should dedicate ourselves to defeating him, if we did, the bloodline would survive, I took a wife from a family that had been in the priesthood for generations, after that, the children did not die as easily, but even then, no one in our clan lived past 30."
"Such pure nonsense turns my stomach, has your sickness reached your brain?" Muzan scoffed before asking Kagaya. "Anyways, those events bear no relation to this."
"Is that how you view it? Well, I see it differently." Kagaya said before coughing but Amane supported his back.
"It has forgiven my killing of thousands, and in a thousand years, I have never seen the gods of buddhas, heaven has never punished me." Muzan replied with a smirk.
"Muzan, what is your dream?" Kagaya asked him before coughing but Muzan had no words and no answer. "For the last thousand years, what dream have your eyes been fixed upon?"
"This is a strange feeling, I have the leader of the Demon slayers Corps, which has vexed me so very much, right before my eyes, yet I feel no hatred, on the contrary." Muzan finally answered before turning to see the empty yard with no one outside. "I feel odd, as if something is familiar, relieved, yet disgusted. There are only two humans in this mansion, Ubuyashiki and his wife, and there are no guards."
"Shall I guess, Muzan? I can fathom your heart, your dream is eternity, your dream is to be undying." Kagaya said, discovering Muzan's goal.
"That's right, and I will soon achieve it, I merely need to find Nezuko." Muzan replied.
"Your dream will not come true, Muzan." Kagaya said before explaining. "You seem extremely confident that Nezuko's hiding place is secure, unlike you, I have plenty of time, you have made a mistake."
"What?" Muzan asked, a bit confused.
*Destiny's Union (Kingdom Hearts: Birth By Sleep)*
"I know what eternity is." Kagaya said before explaining. "Eternity is human feeling, only human feelings last forever and are undying, for a thousand years, the Demon Slayer Corps has persevered, many unfortunate children have died, but they are not gone."
"Rubbish, I recoil from your words!" Muzan scoffed.
"Just now you called that rubbish, but it is proven that human feelings are undying, feelings are undying in their refusal to forgive those who unjustly steal the lives of their loved ones, and no one has forgiven, not once in a thousand years." Kagaya continued explaining.
"Furthermore, Muzan, you have stepped on the tiger's tail over and over and invited the dragon's wrath. They would have remained asleep but you woke them up, their eyes are fixed upon you and they will not let you escape. Killing me will not harm the Demon Slayer Corps or even the Ultimate Super Smash Bros Multiverse Squad, Zodiac Warriors and Elemental 10 one bit, I myself am not that important, but you cannot understand human feelings and human bonds, because you, you demons, if you die, all the demons will perish, right?"
Then Muzan was completely stunned after hearing those words.
"Ah, that got your attention." Kagaya said in understanding. "So, am I right?"
*Ends*
"Enough!" Muzan shouted, losing his composure.
"Very well, that is all, I have said what I always wanted to say to you." Kagaya said.
But then Muzan disappeared in seconds before appearing close to Kagaya.
"But may I say one last thing? I said that I myself am not that important, but that does not mean my death will be insignificant.
"Fortunately, the Demon Slayer Corps, and particularly the Pillars are fond of me. So if I die, their determination will rise higher than ever before. Thank you, Muzan." Kagaya said.
"Are you done talking?" Muzan asked before replying. "Yes. I never expected you to listen this long."
(Forest)
Now in the forest, Aries and Sanemi were running as a crow was squawking loudly.
*Final Hours (Legend of Zelda: Majora's Mask)*
"Emergency summon! Emergency summon! An attack on Ubuyashiki Mansion! An attack on Ubuyashiki Mansion!" The crow exclaimed.
"Master!" Sanemi exclaimed as he was running.
Then many of the team members who are here are running as fast as they can, feeling tension everywhere.
"Hurry!" Obanai said.
"Hurry!" Ace the Ice Type hero said.
"Master!" Kanroji said.
"Gotta get there in time!" Tanjiro said.
"Just hold on!" Caleb said, running as fast as he can.
(Ubuyashiki Mansion)
Then back there, just as Muzan tried to approach Kagaya, suddenly flames started to appear around the whole mansion until a huge explosion appeared.
(Forest)
From afar they watched the full explosion (magical girls and Power Rangers already transformed), everyone was shocked at their sights while feeling dread and tension everywhere, even Aries but was doing his best to hold his composure.
*Ends*
"An explosion…! And this smell…! A lot of burning blood and flesh…!" Tanjiro said in shock while covering his mouth in horror.
"Two ki are gone…!" Goku said, feeling that Kagaya and Amane died.
Aria was hyperventilating, feeling dizzy and barely collapsing herself to the ground.
"Aria…! Aria…!" Lunamon was calling her.
Then she shook her head quickly and recovered herself before continuing.
(Ubuyashiki Mansion)
Back there, in the place where the mansion was destroyed but also Muzan with the exposed flesh, and only wearing his white pants, was laying in the ground slowly regenerating after that explosion.
"Ubuyashiki…!" Muzan said as he was recovering before remembering. "That man's face! He had the smile of a buddha, but then…! He, along with his wife, blew themselves up! I made a mistake, I judged Ubuyashiki to be a normal human, but he was actually a complete nutjob."
Muzan then watched his surroundings of the burned and destroyed mansion and noticed microscopic-sized spikes on the air.
"I figured he was planning something, but not somewhere of this scale, he made the explosion deadly by adding spike traps into it just to delay my regeneration." Muzan told himself in realization. "Which means there's still something coming, Ubuyashiki still has something up his sleeve after this, there are human and creature presences coming closer, most likely pillars and the other heroes, but that's not all, there's something different, that craphead himself as a decoy."
He watched the forest before having images of snakes instead of Kagaya's body.
"His hatred and anger towards me were like a viper, it was coiling in that dead, black stomach of his, I'm in awe at how stunningly he hid his murderous intent, were his wife and kids aware of his plans, or even the aries warrior?" Muzan questioned himself before recomposing himself. "Whatever, it's not worth thinking about it now, don't panic, your body will regenerate very soon."
"Blood Demon Art: Flesh Seed!" A female voice said, which surprised Muzan.
Then bigger spikes emerged from the ground which impaled and restrained Muzan.
"I've been immobilized, someone's using a blood demon art, the spikes are branching into my flesh, so I can't pull them out." Muzan said as he watched the spikes which caught his whole body. "No problem, this isn't too bad, just absorb them, and you'll be fine."
Muzan said, feeling overconfident as he started to absorb the spikes but suddenly Tamayo appeared from nowhere while having many papers across her body and then stabbed her left arm right in Muzan's flesh and directly in the stomach.
"Tamayo! Why are you here!?" Muzan demanded.
"These blood demon spikes belonged to the man who got turned into a demon in Asakusa!" Tamayo replied.
"She got close to me using a smokescreen demon art!" Muzan said in realization before questioning himself. "What's her goal? What did she do? Why did this woman!?"
"You absorbed my fist, Muzan!" Tamayo said before asking. "Do you have any idea what's inside it? A drug to turn demons back into humans, so? Is it working?"
"You shouldn't be able to…" Muzan said.
"Oh, but I've done it! The situation's completely changed, though it would have been impossible for me!" Tamayo explained.
"You are one stubborn woman, Tamayo. And your hatred towards me is unjust!" Muzan said before using his left arm and used his index nail to stab into Tamayo's forehead. "Who killed your husband and kids? Was it me? Not at all, nobody but you, you ate them all up!"
"If I knew that would happen, I wouldn't have become a demon! All I wanted was to not die from my disease! I just wanted to see my kids grow up…!" Tamayo tearfully said in retaliation.
"Then you killed a whole bunch of humans after that, was that all an illusion too? I noticed you had a lot of fun eating those humans." Muzan sadistically told her.
"That's right, I killed many people after falling into the depths of despair. So, to pay for my sins!" Tamayo said as Muzan's nail dug deeper through Tamayo's flesh in the forehead. "You and I are dying right here!"
Just then Caleb came out from the forest with rage building in his eyes.
"I've waited a long time to kill you, Muzan!" Caleb said before jumping with his Schiavona and Destiny Keyblade.
Then the Digidestined of Destiny used Tachyon Cutter with both weapons which slashed through Muzan's head, at first he didn't receive damage apparently but when Caleb lowered his weapons, Muzan's head was dismembered.
"Finally…!" Caleb said with a grunt of satisfaction but suddenly Muzan's head regenerated as if Caleb's attack was nothing for him much to Digidestined's dismay. "Impossible…!"
"As I thought." Gyomei's voice said as Caleb turned to see the Stone Pillar. "It's just as Ubuyashiki predicted, this man, Muzan, will not die no matter how many times we cut his head off!"
Muzan turned to see both heroes while snarling like a beast.
"And the speed of his flesh regeneration, judging from the sound, he is like all the demons I've faced up to his point!" Gyomei said.
"Meaning that the sun is the only way to destroy Muzan…!" Caleb said in dismay again but then realized about the UV grenade and whispered. "However, we need to find the perfect moment to use the UV light grenades…!"
"Blood Demon Art: Chain of Thorns!" Muzan said before unleashing chains of thorns.
"Stone Breathing: Third Form! Stone Skin!" Gyomei said before rapidly twirling and swinging the chain around him to unleash an omnidirectional flurry of attacks with both the flail and axe.
Also Caleb swung rapidly his weapons blocking the enemy attacks but then Sanemi arrived to the place.
"You psycho!" Sanemi shouted before demanding. "What the heck did you do to Ubuyashiki!?"
Just then the remaining members arrived.
"The pillars and heroes are coming, wonderful…" Gyomei said before explaining. "It's Muzan Kibutsuji! This guy won't die even if you cut his head off!"
That information shocked everyone, minus Aries who watched the situation.
'Tamayo already injected the drug to Muzan, eventually he will age rapidly and he will move slower. However, we need to defeat the upper moons and those dark clones and fight against Muzan and when the right moment arrives, we will use the UV light grenades.' Aries said in his thoughts.
"Muzan!" Tanjiro yelled with his blood boiling through his veins with fury.
"Flame Breathing: Second Form!" Rengoku said.
"Mist Breathing: Fourth Form!" Muichiro said.
"Insect Breathing: Butterfly Dance!" Shinobu said.
"Flower Breathing: Peonies of Futility!" Kanae said.
"Snake Breathing: First Form!" Obanai said.
"Sound Breathing: String Performance!" Tengen said.
"Love Breathing: Fifth Form!" Kanroji said.
"Water Breathing: Third Form!" Giyu said.
"Wind Breathing: Seventh Form!" Sanemi said.
"V-Arrow!" Both Veemon said.
"Tear Shot!" Lunamon said.
"Dragon Breath!" Dracomon said.
"Minor Impulse!" Pulsemon said.
"Corona Flame!" Coronamon said.
"Pepper Breath!" Tai's Agumon said.
"Blue Blaster!" Gabumon said.
"Spiral Twister!" Biyomon said.
"Super Shocker!" Tentomon said.
"Poison Ivy!" Palmon said.
"Marching Fishes!" Palmon said.
"Fire Rocket!" Davis' Veemon as Flamedramon said.
"Double Stars!" Hawkmon as Shurimon said.
"Pyrosphere!" Guilmon said.
"Terrier Tornado!" Terriermon said.
"Diamond Storm!" Renamon said.
"Desolation Claw!" Cyberdramon said.
"Kahuna Waves!" MarineAngemon said.
"Fist of the King Beast!" Leomon said.
"Grenade Destroyer!" Guardromon said.
"Atomic Fire!" Takuya as Aldamon said.
"Frozen Hunter!" Koji as BeoWolfmon said.
"Hurricane Gale!" Zoe O as Zephyrmon said.
"Thunder Fist!" JP as Beetlemon said.
"Rot Kreuz!" Koichi as Rhihimon said.
"Spitfire Blast!" Marcus' Agumon said.
"Wild Howling!" Gaomon said.
"Seed Blast!" Lalamon said.
"Ninja Blade!" Falcomon said.
"Flame Cannon!" Shoutmon as OmniShoutmon said.
"Giga Blaster!" MetalGreymon said.
"Lightning Lasers!" Sparrowmon said.
"Scythe Spinner!" Tuwarmon said.
"Prism Gallet!" Arresterdramon said.
"Fire!" Mario said.
"Thunder!" Luigi said.
"Banana Slamma!" DK said.
"Time to pay for your sins, Muzan!" Pit said.
"Poyo!" Kirby said.
"Vulcan Jab!" Knuckle Joe said.
"En garde!" Meta Knight said.
"Thunderbolt!" Ash's Pikachu said.
"Metal Cannon!" Dorumon said.
"Hydro Pump!" Gary's Blastoise said.
"Katana Attack!" Ryudamon said.
"Petal Blizzard!" Leaf's Venusaur said.
"Psycho Cut!" Mewtwo said.
"Flamethrower!" Typhlosion of Jimmy and Ethan said.
"Aqua Tail!" Wani Wani said.
"Energy Ball!" Lyra's Meganium said.
"Ice Beam!" Silver's Weavile said.
"Aura Sphere!" May's Blaziken said.
"Seed Bomb!" Brendan's Sceptile said.
"Psycho Cut!" Dawn's Cresselia said.
"Tecno Shock!" Hilbert's Genesect said.
"Searing Shot!" Hilda's Victini said.
"Sludge Bomb!" Iris' Naganadel said.
"Thunder!" N's Zekrom said.
"Dragon Pulse!" Nate's shiny Haxorus said.
"Relic Song!" Rosa's Meloetta said.
"Dark Pulse!" Rena's shiny Absol said.
"Water Shuriken!" Calem's shiny Greninja said.
"Multi-Attack!" Gladion's Silvally said.
"Pyro Ball!" Victor's Cinderace said.
"Snipe Shot!" Gloria's Inteleon said.
"Flower Trick!" Juliana's Meowscarada said.
"Aqua Step!" Florian's Quaquaval said.
"Great Aether!" Ike said.
"PK Flash!" Ness said.
"PK Freeze!" Lucas (PSI) said.
"Back Slash!" Shulk said.
"Photon Edge!" Mythra said.
"Super Mega Buster!" The five Mega Man said.
"Hadoken!" Ryu said.
"Kikosho!" Chun-Li said.
"Chaos Spear!" Shadow said.
"Take this!" Silver the hedgehog as he launched psychic energy blades.
"Gelid Wand!" Firion said.
"Whirlwind Slash!" Luneth said.
"Searchlight!" Cecil Harvey said.
"Flare!" Terra Branford said.
"Cyclone Rush!" Cloud said.
"Gnashing Fang!" Squall said.
"Meo Twister!" Zidane said.
"Sonic Buster!" Tidus said.
"Arsene!" Ren Amamiya as Joker said.
"Savan Straight Arrow!" Dino said.
"Power Wave!" Terry Bogard said.
"Freeze!" Sora said.
"Dark Firaga!" Riku said.
"Burn baby!" Lea said as he tossed his chakrams.
"Bombs away!" Bomberman said as he tossed bombs.
"Feel the wrath of the Elder Gods, Muzan Kibutsuji!" Lord Raiden said as he launched lightning.
"Kamehameha!" Goku said.
"Galick Gun!" Vegeta said.
"Moon Tiara Action!" Sailor Moon said.
"Mercury Aqua Rhapsody!" Sailor Mercury said.
"Mars Flame Sniper!" Sailor Mars said.
"Jupiter Oak Revolution!" Sailor Mars said.
"Venus Love and Beauty Shock!" Sailor Venus said.
"Gum-Gum Bullet!" Luffy said.
"Purgatory Onigiri!" Zoro said.
"Mouton Shot!" Sanji said.
"Shadow Clone Jutsu!" Naruto said.
"Fireball Jutsu!" Sasuke said.
"Windy! Release and dispel!" Sakura A said.
"Beta the Magnet Warrior!" Yami said as he summoned his monster.
"Spear Dragon!" Seto said as he summoned his monster.
"Pegasus Meteor Fist!" Seiya said.
"Diamond Dust!" Hyoga said.
"Rozan Rising Dragon!" Shiryu said.
"Nebula Chains!" Shun said.
"Phoenix Illusion Fist!" Phoenix Ikki said.
"Twin Flame Slash!" Ryo of Wildfire said.
"Arrow Shockwave!" Rowen of Strata said.
"Iron Rock Crusher!" Kento of Hardrock said.
"Super Wave Smashers!" Cye of Torrent said.
"Thunderbolt Cut!" Sage of the Halo said.
"Spirit Gun!" Yusuke said.
"Fist of the Mortal Flame!" Hiei said.
"Jajanken Paper!" Gon said.
"Lightning Palm!" Killua said.
"Dowsing Chain!" Kurapika said.
"Flash of the Heavenly Dragon!" Kenshin said.
"Slashback Wave!" Inuyasha said.
"Vacuum Buddah Slash!" Yoh said.
"Rapid Tempo Assault!" Tao Ren said.
"Ultra Fire Dragon Roar!" Natsu said.
"Summon Grand Scorpio!" Lucy said as she summoned the celestial spirit Scorpio.
"Ice-Make: Cold Excalibur Unlimited!" Gray said.
"Moon Flash Absolute!" Erza said.
"Ultra Sky Dragon Claw!" Wendy said.
"Alchemy Blade!" Edward said.
"Piercer of Heaven Zero!" Ichigo said.
"Third Dance White Sword!" Rukia said.
"Baboon Bone Crusher!" Renji said.
"Brazo Izquierdo del Diablo!" Chad said.
"Bull Thrust!" Asta said.
"Detroit Smash!" Deku said.
"Howitzer Impact!" Bakugo said.
"Ultima!" Buster said.
"Crescent Blade!" Zen-Aku said.
"Red Lion Fang!" Cole said.
"Golden Eagle Sword!" Taylor said.
"Blue Shark Fighting Fins!" Max Cooper said.
"Black Bison Axe!" Danny said.
"White Tiger Baton!" Alyssa said.
"Lunar Cue!" Merrick said.
"Articuno, use Blizzard!" Ace the Ice Hero instructed.
"For the Multiverse!" Twilight said as she prepared Mystical Fire from her horn.
All the heroes proceed to attack Muzan while Aries stood his distance while preparing his two guns too.
"Hinokami Kagura: Sunflower Lance!" Tanjiro said.
However, Muzan smirked and then hatches appeared below the heroes causing them to gasp as they were transported to the Infinity Castle, even if the other Demon Slayers were afar like Genya who is practicing with the nichirin gun and sword he was transported too for his surprise, Inosuke tried to eat his tempura shrimp until he felt into the Infinity Castle, also Murata and all the Demon Slayers of Kanoe rank, the kasugai crows were transported too.
(Infinity Castle)
In another part Inosuke was falling into the Infinity Castle much to his surprise, but then he got excited before putting him back his boar's mask and laughed ready for the battle while not very far Genya was falling.
"What's going on!?" He asked.
In another part Kanao was hanging from an edge.
"Hold on strong!" She said.
And Zenitsu, not afraid, grabbed his sword as he was falling while the whole group was falling down, ending up separated from each other.
"Not again…!" Tai said in shock knowing that they will be separated from each other.
"We entered into the wolf's mouth, those who enter no one escape…!" Luke said.
"Capricorn, find Nakime and use the spell!" Aries instructed him.
"Got it!" Capricorn said.
"Tanjiro!" Giyu called him.
"Caleb!" Leo and Aidan called him.
Speaking of them, Caleb and Tanjiro landed on a platform before watching Muzan.
"Did you think you had cornered me? Did you think that bringing more team members could defeat me? Did you think reviving previous pillars will defeat me?" Muzan asked both boys. "Hell awaits you all, wannabe heroes and pathetic demon slayers, all of you will die tonight, just like the people revived by the Zodiac Warriors and Elemental 10!"
Caleb and Tanjiro tried to advance but the hatch appeared below them and they fell again.
"You're the one who is going to hell! Your days of haunting my family will be over!" Tanjiro shouted.
"We won't let you escape, you damn coward!" Caleb added, causing Muzan to growl with fury at both of them.
"Try it if you two can, Tanjiro Kamado and Caleb Lhantis!" Muzan yelled from afar.
"Today we will defeat you, Muzan Kibutsuji!" Tanjiro and Caleb yelled.
They were falling until Leo jumped and grabbed Caleb while Giyu did the same with Tanjiro and meanwhile back in the Academy of the Omniverse, the place was surrounded by the Infinity Castle while Ashton watched in shock.
"I didn't expect this to happen, luckily some of the heroes are here…!" Ashton said with tension.
Just then Najarin arrived along with every known creature from Perim like Maxxor, Tangath Toborn, Intress, Zalic, Blazier, Laarina, Momark, Gespedan, Staluk, Ettala, Maglax, Attacat, Tartarek, Raimusa, Blügon, Arias, Vidav, Iparu, Targubaj, Wytod, Aivenna, Rellim, Heptadd, Mezzmarr, Crawsectus, Frafdo, Nebres, Velreth, Ulfhedinn, Viqtarr, Lomma, Psimion, Raznus and Kinnianne from the Overworld Tribe, Asadab, Lyssta, Chaor, Takinom, Agitos, H'earring, Barath Beyond, Zalvar, Tharax, Ulmar, Magmon, Rothar, Dardemus, Borth-Majar, Grook, Bladez, Ultadur, Nivenna, Khybon and Rarran from the Underworld Tribe, Illexia, Odu-Bathax, Tarteme, Mallash, Dubin, Kolmo, Hammerdoom Chantcaller, Aimukk, Lhad, Bierk, Ekuud, Faash, Formicidor, Ibiaan, Kelvedran and Khritlaan from the Danian Tribe, and lastly Iflar, Prince Mudeenu, Ario, Biondu, Brathe, Dakkamal, Drimesse, Fivarth, Gnarlus, Kobarri, Zhade, Siado, Xelfe, Munnari, Vinta, Uro, Qwun, Shimmark, Owayki, Melke, Sobtjek, Tiaane,
"I convinced Chaor and the Underworlders to come here." Nebres said.
"The Mipedians are here." Kinnianne said.
"And the Danians too." Raznus said.
"Ulmar, Tianne and I brought all the Battle Gear and Mugics possible." Momark said.
"Why do we have to help those humans?" Velreth asked with dislike towards the humans.
"Not only Perim is in danger, but also the whole Multiverse." Najarin said.
"Apparently Muzan, just like the other villains, will never play fair and square." Ashton said as he watched his surroundings before pulling his phone to speak with Ienzo. "Are you done by bringing Rei and Ila?"
"It's almost finished." Ienzo replied.
Ashton nodded before seeing the horizon of the Infinity Castle, it's all or nothing to defeat Muzan, protecting the revived people specially Tanjiro's family and Muzan's reign of terror.