Meanwhile inside the Infinity Castle.
"RAAAAAAAA! How could you imbeciles find nothing?! What's the point in making you lot who you are when you have nothing to show for it!" Muzan shouted out at the Upper Moons as he had torn apart all the Lower Moons in frustration and given them no time to speak for themselves, losing their lives without a word.
"Master, who or whatever this being that had taunted you so and killed both Akaza and Doma must have ways to travel in an instant like we do, I found his place where he had humans worship him in his cult and there was blood everywhere but it was only his blood and his ashes were spread all across the room, it seems whatever that thing is ripped him to shreds and was able to kill him in another way than what those Demon Slayers use." Kokushibo said as with Akaza who was the one who would always do his masters bidding being gone, it fell to him who was considered his most trusted right hand man to look into.
"Heeee! I don't want to ripped apart like that!" Hatengu couldn't help but shiver in fear at the thought he possibly could be killed in such a gruesome way.
"How interesting, it might have been a great work of art to have seen that beings work." Gyokko mutters as he thinks of new ways to make future grotesque art pieces of his.
"I'm sorry master, I had my eyes scatter all across the lands within my reach but I still haven't located the Demon Slayers Headquarters, we will need to move the Castle when night comes to cover new territory." Nakime says quietly to Muzan as she plays her Biwa making the area around the castle shift and change.
"Do it then, with this new threat we can't have those gnats getting in our way." Muzan said looking back at Nakime who nodded in return.
"Ugh, what a pain, I'd rather be sleeping right now than dealing with this." Gyutaro said picking at his ear to the chagrin of his sister Daki.
"What the hell are you talking about idiot?! It should be a great honor to serve our master!" She yelled at him only for him to roll his eyes and sigh, not saying what he wanted to say less he possibly gets punished by Muzan.
Though suddenly they all stopped what they were doing as they heard music, but not from the Biwa that Nakime has, but the sound of a strumming instrument coming from above.
They looked up to see a headless man with yellow robes and Buddhist beads around his neck playing a Sanxian, a Chinese three stringed instrument that is similar to the banjo before he began to sing.
When the night falls dark, and the shadows sway,
Watch out, my friend, for the demons at play.
With laughter like thunder and eyes full of dread,
They'll whisper their secrets, but don't be misled.
Suddenly sliding doors appeared on several different landings before opening with every single one of the Demon Slayers falling through them.
"What?! Demon Slayers Here?! But How?!?! Nakime!" Muzan shouted out in surprise that his own den was discovered so easily and he wanted to know how they were able to get here.
"Master! That man is overriding my Demon Art some How!" Nakime couldn't help and say in surprise to which she rapidly began playing her Biwa to counter the headless man, but it was to no effect as the Castle was shifting to the Demon Slayers Benefit.
They dance in the moonlight, with mischief in mind,
Casting their spells, leaving softness behind.
But courage like armor, in heart it will stay,
For the brave shall rise up, and the wicked will pay.
"Muzan Kibutsugi, You knew this was going to happen sooner or later, and let's just say it was to our mutual benefit I took you down." I said before I split into two with both of us now wearing sets of armor I decided to buy as they seemed cool to wear along with having their own benefits, Shie was Wearing the Bull Demon Kings Armor where as I was wearing the Sacred Pilgrims armor while Shie used what was known as the Dark Iron Staff where as I held the Stormflash Loong Staff.
(N) Yes those are all Black Myth Wukong weapons and Armor, and the Pilgrim Outfit is the Maxed Out Version of the armor which changes its look at its max level, it's a good game and I like it enough that I want to unlock all the achievements in it before they release future DLC for the game, also Changling is the Headless man and that is also a Black Myth Wukong Reference as well.
With a flick of the wrist and a glint in your eye,
Face them head-on, let your spirit fly high.
For in the endgame, come dawn's early ray,
The demons will falter—oh yes, they'll be slayed!
Soon enough the platforms separated with Obanai and Sanemi facing against Kokushibo, Rengoku and Gyomei against Gyokko, I was facing off against Hatengu with Tengen and Mitsuri against Gyutaro and Daki.
"You see I thought about killing all of you on my own but I thought that would be a waste, so I got some similar enemies of yours to join me in this fight, and get myself a new servant in the meantime." Shie said while pointing his thumb towards Changling where Akaza appeared sitting next to him to keep guarded and safe so he wouldn't be interrupted by being attacked.
Seeing this made Muzan grit his teeth as he new his connection had been completely cut off from Akaza and thus he had no control over him.
Soon enough the platforms became there own individual and extremely large rooms as every Demon Slayer along with Shie and I began to channel our Spiral powers standing off against with each of the Upper Moons in Front of us.
So gather your strength, let your laughter ignite,
Their games might be cunning, but you'll win the fight.
From the darkness they came, but come morning's bright sway,
With valor and heart, we'll send them away!
"This is the day that you and the rest of your kind die Muzan, And I will keep you company, so please entertain me while you show me everything you got!" Shie shouted out before he instantly appeared before Muzan and smashing his staff right into him with such force that many of his bones shattered as a result with him slamming into the wall, making a spider web crack from the impact.
'I couldn't even react to that?! Damnit!' Muzan couldn't help but exclaim in surprise while his bones rapidly fixed themselves as Shie spun his staff around.
He then lifted his hand before giving him the 'Bring it on' gesture with his hands, pissing Muzan to no end as his hair turned pure white with sharp toothed mouths sprouting out across his body while his arms became like spiked tendrils as he used everything he could to kill this man before him.
But the final battle has only truly just begun.