Muzan

The death of Genya was spread through to the Demon Slayers around the fortress, as well as the victory over Upper Moon One.

Inside the hall, Hiroto and the others were about to head out and find Muzan's location when the crow above them started shouting out.

"Revival!! Muzan has revived!! The Hashira's must gather at once!!" The crow's shouted their orders out to the Hashira's. "Gather at once!!"

"Muzan revived!" Uzui said, agitated."

"I'm gonna fucking kill that bastard," Sanemi growled, standing up with tears still streaming down his face.

"We need to move, now," Hiroto said, as the others nodded. "We need to cover as much ground as possible, so we should spread out and corner Muzan."

"But that's too dangerous!" Muichiro interjected, "What if one of us faces Muzan alone?"

"No, Kamado is correct," Gyomei said, tears streaming down his face as well. "The crows close to Muzan's location was killed, so the location he was reported at could be a dead end, and he might have already moved far away."

Everyone nodded solemnly and split up into different directions, combing the fortress to find and put an end to Muzan, once and for all.

Hiroto was running through the halls and passed by bodies of dead Demon Slayers, slain and ripped apart. 'Dammit, I need to hurry.' Hiroto thought, grinding his teeth.

As he rounded a corner, he saw 4 different Demon Slayers backed in a corner, as a group of Demon's surrounded them.

"Keep fighting! We need to clear the way for the Hashira's!!" One of them shouted, wielding his sword with one arm, with his left missing.

*shik shik*

Hiroto arrived and cut his way through the crowd of Demon's, slicing off each and every one of their heads. The Demon Slayers stared back in joy and relief, as they watched Hiroto make short work of the Demons.

"Where are the others?" Hiroto said, looking at the 4.

"We-we're all that's left…" Another person answered, gripping the side of his body.

Hiroto nodded and said, "Try and regroup with the others, the Hashira's are going to put a stop to Muzan."

The 4 nodded their heads and ran in the direction Hiroto came from. Hiroto gave one last glance at them and continued down the halls.

The ground below him switched directions, causing the floor to be on its side, as the wall became the ground. Quickly reacting, Hiroto landed on a sliding door, but it was then pushed open and an arm reached out to grab him.

'Dance of the Fire God, Burning Bones' Hiroto delivered a circular slash around him, slicing off the arm that reached out towards him in the process.

"Graahh!!" The Demon screeched out, as it reeled back into its hole. Not giving in a chance, Hiroto swung his sword in a flash, decapitating the Demon in less than a second.

After Hiroto landed back onto solid ground, a voice was broadcasted through the entire fortress.

"What is she doing you ask? The woman's sight is being manipulated by me.�� The voice said, echoing through the fortress.

"That Yuchiro's voice," Hiroto muttered as the fortress started to shake and warp around him.

"Muzan. You have committed the gravest sin in the world. You have taken Tamayo away from me. Now get on your knees and repent!!" Yushiro shouted out, his voice full of grief and fury.

"Right now, I am going to erase you from the face of the Earth!!!" The fortress shook with even more fervor, causing Hiroto to lose his footing momentarily.

The ground below him changed, to walls instead. Then it switched once more, to a ceiling and then to a set of doors, as the ground he stood on split into a large square.

Hiroto started to fall through the large gap, but thrust his sword into the side of a wooden wall, pinning himself to it as he hung off of his sword. Placing his foot against the wall, Hiroto kicked off of it and jumped upwards, out of the large square he fell through.

'Dammit, this is reminding me of that drum Demon and him changing the direction of the room.' Hiroto thought, thinking back to when he first met Inosuke and Zenitsu before that fight.

"You're lying!!!!" A loud, and anguish scream filled the fortress, as Hiroto quickly recognized the voice.

"Tanjiro? Did something happen to him!" Hiroto said anxiously, looking towards where the source of the voice was. As he was about to run towards its direction, the wall in front of him surged forward towards him, threatening to squash him.

Hiroto dodged out of the way in time but lost his monocle in the process as it fell off his face and was crushed between the walls. 'Shinobu is gonna kill me if I can get out of this alive.' Hiroto thought ironically, as the ground below him started to shake.

'What the hell was that about?' Hiroto thought as the ground below him started to shift upwards at high speed. Looking up, Hiroto saw that he was about to get crushed in between the ceiling.

'Dammit, there's nowhere else for me to go!' Hiroto thought anxiously, as the walls around him closed up, sealing his retreat. Gripping his sword tightly, Hiroto breathed in.

'Dance of the Fire God, Sunflower Thrust'

Hiroto thrust his sword towards the wooden ceiling above him, driving it deep into the wood and crashing through it, as the floor pushed him through.

*crash*

Hiroto was sent tumbling through the air, as the momentum launched him out into the night sky.

*thud*

"Argg, where am I?" Hiroto muttered, as he slowly stood back up from the crash. As the moonlight reflected off his face, the mark on his face and arm showed no sign of receding.

'I'm back outside?' Hiroto thought, looking around and seeing buildings around him. 'Wait, if I'm outside, then Muzan should be as well!' Hiroto swung his head around, hearing another loud crash closeby as debris of wood and stone was flung into the air.

"There!" Hiroto shouted, sprinting at full speed towards the explosion. As he got closer, he could hear a crow shout out, "Cawww!! One and a half hours until dawn!! One and a half hours!"

'That long?!' Hiroto's eyes widened upon hearing the crow. From what he remembered, the only real way to defeat Muzan is to trap him in the sunlight. Severing his head wouldn't work.

"Owwieee!"

Hiroto heard Mitsuri's voice from ahead, as the familiar figures of her, Obanai and Giyu stood up from the crushed rubble. In the clearing, Hiroto saw Tanjiro seething with rage as he scanned the area.

Before Hiroto could shout out, Tanjiro turned his head towards Hiroto's location and stared at him dumbly.

"Brother! You're alive!! Thank the gods…" Tanjiro muttered with tears streaming down his face.

Hiroto got closer and saw that his right eye was cut badly, with blood streaming down of it, as well as on his body.

"Of course I'm alive, who told you otherwise?" Hiroto said, approaching Tanjiro.

"It was Muzan!" Tanjiro said, grinding his teeth in anger. Hiroto nodded and saw a pile of rubble a distance away start to shake.

*BOOM*

Debris was blown away, as the figure of Muzan appeared, with several spiked-barbed wires growing out of his back as the limbs on his body were covered with jaws with sharp fangs.

"Oh, so you plan on keeping me here until dawn, huh?" Muzan growled, seething with fury, "Well, go right on ahead! If you can!!"

Muzan then spread his arms open, lashing out with the spikes on his back in every direction towards Hiroto and the others.

Hiroto and Tanjiro split up, dodging past the strikes and they bore through the ground, leaving deep indentations in its paths. Looking upon Muzan's body, Hiroto almost froze, as a sense of dread filled him.

Hiroto then shouted out to everyone, "Wait! Muzan's body is different from the other Demons!! He has seven hearts and five brains, all scattered across his body!!"

All of the Hashira's and Tanjiro's eyes widened in horror, as they realized what they would be up against.

Giyu shouted out, "Just cut him across his entire body! We just have to hold him here until the dawn!"

Everyone nodded their heads, rushing past Muzan's spikes and closing upon him, only a few feet away.

'Breath of Snake, Third Form'

'Breath of Love, Second Form'

'Breath of Water, Eighth Form'

Obanai, Mitsuri, and Giyu closed in on Muzan, bypassing his attacks and slicing through his neck and limbs.

As their swords exited Muzan's body, the flesh that was separated instantly reattached itself back together, making it seem as though they never cut him in the first place.

"Eh?! Eh?! Wha? We cut him, but he's not getting cut?!" Mitsuri shouted in surprise.

Hiroto rushed forward, flanking Muzan from both sides.

'Dance of the Fire God, Dance'

Hiroto propelled forwards and slashed downwards from behind Muzan. However, his strike missed its mark, as Muzan jumped in the air and whipped his spikes towards everyone around him.

'Oh crap! He's too close to us!' Hiroto and the other Hashira's shared the same thought, as Muzan cleaved towards them.

*shik spurt*

In the last moment, numerous Demon Slayers jumped forwards, grabbing and pushing Hiroto and the Hashira's out of the way, as they sacrificed themselves.