As Tanjiro and Inosuke looked around to try to spot Gyutaro through the mist, the former thought to himself, his hands trembling with anticipation as he gripped his sword as tightly as he could, "I can feel my hands shaking. At any moment, Gyutaro could strike from the mist and we won't be able to see him until he's right next to us." Tanjiro quietly told Inosuke, "I have a feeling he'll strike soon."

"Me too," Inosuke replied. "I sense his presence, Monjiro."

Somewhat annoyed that he still got his name wrong, his battle partner corrected him with, "Tanjiro…"

"Whatever it is."

Then, Tanjiro sniffed the air and sensed something to his right. "Over there!"

Sure enough, Gyutaro attacked once again, using his blood to create and throw sickles at both of them. Inosuke shouted, "Fuck, here he comes again!" He then declared as he readied an attack, "Breath of the Beast, Fourth Fang: Slice and Dice!" Using his dual swords, he slashed at the sickles, deflecting all that tried to hit him as he pushed his body to the limit to keep them off of him.

"Fuck it! Dance of the Fire God, Waltz!" Tanjiro then performed a single vertical slash, interrupting the wave of sickles and stopping them in their tracks while pushing his body to the breaking point. "Please," he thought to himself. "Let me at least get close to him!"

As he did, the mist lit up from the force of the attack, and for a moment, Gyutaro suddenly saw memories flash into his mind. "What the fuck?!" He had to retreat further into the mist as he felt something take over his head and his body tremble involuntarily. "This is odd," he thought to himself. "What are these memories? These aren't mine for sure…"

In his head, he saw an older man with longer hair and a sword approach him. The man glared at Gyutaro, but he did not react, for he knew that the man was not real. The man silently drew his sword before he told Gyutaro, "Where's my brother?"

Deeply confused, Gyutaro thought to himself, "Brother… Who is this guy?"

"You better tell me where he is, Kibutsuji Muzan. You know for a fact that with breathing styles, you're more vulnerable than ever before."

"Wait a fucking minute," Gyutaro thought to himself as he realized whose memories he was experiencing. "These are my master's memories! They have to be! But if they are, who the Hell is this guy?"

"You will be soon."

Just as the man in front of him, who was in fact a vision of Yoriichi Tsugikuni from the inner depths of Muzan's memories, disappeared from view, Gyutaro realized too late that Tanjiro had charged at him while he was distracted and frozen in place. "Fuck!"

"Breath of Water, Tenth Form: Constant Flux!" A clearly ragged but still determined Tanjiro then swung for Gyutaro's neck. However, a last-second deflection with a blood attack forced Tanjiro to the ground and pushed him back over ten feet. "No!" This counterattack injured Tanjiro rather extensively, and caused him to almost pass out as he began to bleed from his wounds and hyperventilated. "Agh… Ahh… Ahh… Agh, no…"

"Keitaro! Keitaro, no!" Inosuke then raced to his side and dragged him over to Tengen and Mukago. "Hang on, I got you, Keitaro!"

"Damn it," Tengen said as Inosuke dragged Tanjiro over. "Don't tell me he's knocked out of the fight!"

"I need to control my breathing," Tanjiro thought to himself as he was dragged over and he began to try to slow his breathing down in an attempt to heal himself. "I need to control my breathing! I need to do what Rengoku-san said! I can't lose now! I won't lose now!"

"Mukago," Tengen then instructed her. "Strengthen your mist to block Gyutaro more!"

"Got it," Mukago replied before making a small cut on her thumb with her teeth and declaring, "Blood Demon Art: Snowy Mist!"

As the mist got thicker and a slightly thicker dusting of snow began to appear on the ground as a mixture of both how cold the actual air was and Mukago's Blood Demon Art, Gyutaro was unable to see more than a few inches in front of him, even with his extrasensory abilities. "Damn it, I can't see a thing, man! Don't make this shit so fucking difficult! Let me see you so I can kill you! Mukago, you can't hide forever, you know?!"

Having faintly heard him through the mist, Mukago admitted to Tengen, "He's right. We can't hide forever."

"That was never the plan," Tengen replied as he readied his swords and bombs. "This was." He then declared, "Breath of Sound, First Form: Roar!" In the general direction of Gyutaro's voice, he threw his bombs and then slammed his swords down on the ground to create a powerful explosion that temporarily deafened everyone for a few seconds due to the intensity of the sound.

As the force hit Gyutaro through the mist, he used his blood to try to form a block against it, but he was still blown back several feet by the attack. "Damn it!"

Mukago then launched an attack that hit Gyutaro less than a second after Tengen's attack ended. "Breath of Mist, Seventh Form: Obscuring Clouds!" In her head, she thought to herself, "This is the first time I'm using Mui's own personal form! I hope I don't fuck this up!"

As Gyutaro tried to keep up with a variety of blood sickles to deflect her attack, still thrown off-balance by Tengen's own earlier attack, Mukago initially appeared to be moving slowly towards him. However, when he felt her blade touch his arm, he realized that not only was she faster than he realized, but also much closer than she appeared to him. "Oh fuck me!"

Mukago then severed Gyutaro's left arm completely. Though he was almost instantly able to grow it back, the fact his arm was severed at all not only interrupted his blood-based attacks for the time being, but also shocked him. "I got him," Mukago shouted. "I did it!"

"Damn it," Gyutaro muttered as he watched his arm grow back in a few seconds. He tried to strike Mukago with a sickle on his right hand, but she was able to dodge the swing and retreat back into the mist. "I won't miss you the next time, Mukago! You hear me?!"

Tanjiro said weakly as he began to regain control of his breathing, "You… You hit him?"

"I got his left arm," Mukago replied to him. "It's not much, but it's better than nothing."

"We'll have to hold him off until we get more help," Tengen theorized. "We'll need Colby-san and my wives to get here to finish both of them off."

"I hope they get here soon," Inosuke replied to him. "It sucks not being able to deliver a killing blow. The suspense is killing me!"

"Killing you, huh?!" Gyutaro then launched another attack against the four of them with his blood sickles as he raced towards them. "How about I kill you for real, man?!"

Tengen and Inosuke quickly blocked his attacks, holding him off by rapidly swinging their dual swords to match with the movements he made. As they held him off and the sound of metal clashing together many times per second rang through the air, Inosuke yelled out, "Help better come soon!"

As James and Hinatsuru walked out of the building the latter had been held hostage in, they looked around for any sign of attackers. "No one," Hinatsuru said to him as they walked out. "Let's hope it stays that way."

"Where did ya say this cavern was?"

"It should be somewhere right below us," Hinatsuru replied as she pointed to the ground below. "We just need a way down there so we can get Makio and Suma. I still can't believe that bitch Daki told me where they were. She was boasting about keeping them down there for a meal."

"She didn't count on ya survivin' long enough to do anythin' 'bout it."

Both of them then saw a soldier come running towards them past several people in the street with a bayonet attached to his rifle, pushing several people out of his way in an attempt to intercept and stop the duo. "There you are, Colby!"

"I got this," Hinatsuru then told James as she pulled out a kunai knife and threw it with perfect accuracy at the soldier's head, causing him to stop and scream in pain. "Tengen-sama gave me poisoned kunai." She then tossed another at him when he tried to get up, this one striking him in the chest.

"Damn bitch!" The soldier aimed his rifle at her, but she jumped out of the way just as he was about to pull the trigger and kicked him in the head, causing him to fire blindly in the air as she pulled the kunai knife she had thrown at his face out of his right eye socket and stabbed him twice in the neck and upper chest. "Aaagh! Aaaaaagh!" The soldier began to scream as the poison took effect, causing his body to burn up and disappear as Hinatsuru hopped off of him.

"He won't be bothering us anymore," Hinatsuru told James as she grabbed her other kunai knife and then put both knives away. By the time she walked back over to him, the soldier demon was completely dead and gone, with only his clothes remaining on the ground. "Now, let's move on."

"Agreed." He then remarked to her, "You're pretty good at this shit. Are the other two wives good, too?"

"All three of us were trained as kunoichi," Hinatsuru explained to him. "Female ninja, essentially. All of us have combat experience. Tengen-sama himself came from a rather cutthroat family of ninja."

"I can see it," James nodded as they began to walk again. "He definitely feels like one of those ninja types you guys have here in Japan."

Suddenly, as they walked down the street, they heard a rumbling behind them and turned around to find several obi sashes emerging from the ground. "Oh shit," Hinatsuru said as they began to inch closer to them. "She's gonna try to drag us into the cavern."

"Then let her," James then theorized. "It's our only way to get down there fast. We'll let ourselves get dragged in, and then fight our way out with Makio and Suma."

"Are you sure about this?"

"Very," James replied as one of the sashes grabbed his leg and forced him to the ground, dragging him down into the hole the sashes had made nearby at a much faster pace than they had done when they were reaching for him. "I'll see ya down there!"

"Fuck it," Hinatsuru said as she drew a small kunai knife and a sash grabbed one of her legs. "Here we go!" As she was dragged down, she closed her eyes and readied herself as she was pulled into the ground.

When both of them opened their eyes again, they were met with a large and spacious cavern under the streets of Yoshiwara. James was very quickly able to cut through the sash around his leg as he was suspended upside-down in the cavern and fell to the ground. As he landed on his feet, he looked up and saw a variety of sashes hanging from the ceiling. "God damn…"

"Uh," Hinatsuru then pointed out as she hung from the ceiling upside-down. "A little help?"

"Oh, right!" James then sheathed his sword, pulled out his shotgun from behind his back, and aimed at the sash that kept her suspended. "Hang on now! I won't hit ya! I got good aim, and this here shotgun's got a full choke!" Hinatsuru then closed her eyes as James pulled the trigger and destroyed the sash holding Hinatsuru up with a well-placed blast of shot.

As Hinatsuru landed on her feet and James put his shotgun away, she looked up and immediately recognized two of the other people that were held up by the various obi sashes. "Makio! Suma!"

"So that's them, huh…"

A sentient piece of the obi sash then slithered over to them and yelled, "What the Hell are you two doing here?!"

"Yeah," said another sentient sash. "What gives you two assholes the right to barge in down here?!" Both of them sounded exactly like Daki, which confused James and scared Hinatsuru. "I don't like meals that try to run from me!"

James shot both of them and killed them with relative ease in three shots, only for another sentient sash to try to grab him from behind. "Fuck!"

Hinatsuru noticed this and swiftly cut through the sash as it began to grab a hold of James's right arm, killing it. "Close call! Way too close!"

"I'll hold these fuckers off," James instructed her as he rapidly reloaded his shotgun. "Go free the other two!"

"Sounds good to me!" She then jumped up onto the walls of the cavern to reach those who were trapped in the various sashes that hung from the ceiling.

Meanwhile, James began shooting at various sentient sashes that tried to attack him, successfully fending off all that tried to grab onto him. "Come on! Come on now! Try and get me, ya little bastards!" After using up all five shells in his shotgun, he threw it to the ground and pulled out his sword. "Breath of Flames, Second Form: Risin' Scorchin' Sun! He then killed three more sashes at once work his attack, letting them fall to the ground just as he saw Hinatsuru freeing Makio and Suma, both of whom fell to the ground but were still alive. "Alright!"

"Ugh…" Makio awoke first, looking around at the cavern and asking as she rubbed her head, "Where the fuck am I?"

Suma then screamed in fear as she woke up and looked around the cavern, "Where are we?! Are we in Hell?! This is really scary, guys!"

Makio angrily yelled at her, "Shut the Hell up and stop panicking! That ain't gonna help here, you know!"

Hinatsuru calmed both of them down by saying, "Guys, come on. We can't fight right now. We have a mission to do. We need to help Tengen-sama." She then jumped back up to free the others trapped in their sashes.

Suma looked at James and timidly asked him, "Um, hi, uh… Who are you?"

"I'm James Colby," he told her. "Flame Pillar of the Demon Slayer Corps and a comrade of your husband."

Makio told Suma, "You idiot, you forgot?! This is who Tengen-sama was talking about before we left and came to Yoshiwara!"

"Sorry… I was so focused on the mission I forgot about Colby-san…"

"Now," Hinatsuru then said as both she and James looked up at the ceiling of the cavern. "How the fuck are we gonna get back up there?"

"I can help you out," then said a woman nearby who had been cut out of the sashes that Daki had stored in the caverns by Hinatsuru. As all four of them turned around, they saw an oiran emerge from the sash that had bound her. The woman, who was in fact Koinatsu, told them, "Thanks for saving me and the others. I thought I was gonna die down here after Warabihime trapped me here. I knew these caverns existed, and I know a way out that is reasonably fast."

All four of them looked at each other and nodded. James told Koinatsu, "Show us the way. We gotta help the other demon slayers out up above."

"Including Tanjiro?"

"Especially includin' Tanjiro!"

As the four of them ran out of the caverns and down a pathway, Koinatsu told them, "Many of the courtesans here have known about these caverns for a while, but I didn't realize Warabihime used them as storage for her victims!"

"Her real name is Daki," James then informed her. "And she's actually a demon!"

"I figured as much!"