In the real world, Zenitsu and Rinji, the latter of whom had been recruited somewhat last-minute, watched from the second floor of a brick American-style house just outside of Yokohama as a raging storm shook the whole building around him and pummeled the ground with torrential rain. As it turns out, the shaking earlier was from a lightning strike that had just barely missed the house and had instead burned up a tree next to it, which shook the house so much that it threw Zenitsu off of his feet.
Rinji asked Zenitsu as the two continued to watch the storm, "Man, the wind's really loud." Indeed, the storm outside produced high winds, and already, they had seen a few tree branches fly past the house. "This is typhoon-level."
"You might be right," Zenitsu replied. "I thought it was bad when we traveled up to this guy's house, but this is even worse." He was afraid that the storm could blow over the house and cause it to collapse. "This storm could wreck the house."
"I doubt that," Rinji disagreed. "This house is pretty new, and it's Western-style with brick, so it's a bit more stable. I think we'll be fine as long as we stay indoors. This isn't like your traditional Japanese house made out of wood, after all."
"I hope you're right," Zenitsu replied out of worry. "I really, really hope you're right."
Just then, they saw almost an entire tree fly past the house, making Rinji remark, "Holy fuck…"
Zenitsu screamed in fear, "Fuck this! We need to board the windows up now!"
"Good idea," Rinji replied as he and Zenitsu began to dash around the house to find any wood planks and tools to hammer them into the walls to board up as many windows as possible. "Hurry up, Zenitsu!"
"No need to tell me twice!"
"This storm could get worse! If we don't hurry, the windows will get blown out!"
…
Back in the dream world, the gang was walking around on a large back porch with glasses of wine in their hands. As Nezuko sipped on her wine, Tanjiro told James, "I don't think we're any closer to finding out the secrets."
"Actually," James replied, bringing something up that he had not before just in case someone overheard it. "I saw him look at somethin' behind me when I mentioned secrets. The changin' room was what he was lookin' at."
Inosuke asked him out of confusion, "Why did you wait to tell us?"
"Just to make sure nobody could overhear us," James explained. "We're all alone on this porch."
"So," Nezuko asked him. "What's the plan now?"
"I'm gonna sneak back into the house and make my way to the meetin' room without anyone noticin' me," James told the gang. "You guys need to distract the guests all around the party while I do. If you have to use lethal force, do it. These are not real people. Have I made myself clear?"
"You have," Tanjiro replied as he made sure his gun was loaded before closing the cylinder back into place. "Nezuko, come with me."
"Got it," she replied as the two of them headed off.
James then turned to Inosuke and told him, "Inosuke, you know what to do, right?"
"Of course I do! I'll be the best distraction there is!"
"I hope that ain't an invitation for tomfoolery bullshit," James remarked as he walked away.
Once James was out of earshot, Inosuke ripped off his shit and screamed, "I'm King of the Mountains, bitches! Now, who wants to take me on in a fight?! Let's go! Let's go! One on one! Two on one! Hell, I'll do three on one! I don't give a fuck! I'll still beat all of your asses!"
His outburst shocked several guests who were walking out onto the back porch, and as they all stared at him with confusion, one of them yelled at him, "What the Hell are you doing?!"
Inosuke pointed and yelled at him, "Is that a challenge, you bastard?!"
"Maybe that is, asshole!"
"Then let's fight! Come on! Let's go, fucker!"
The man tried punching Inosuke in the face, but Inosuke caught his punch and threw him on the ground. "What the Hell?!" He tried to get up and kick him, but Inosuke kicked him first before grabbing his leg, twisting it, and once again throwing him to the ground. "Damn it!"
"How do you like that?!" Inosuke then noticed another man coming from behind him with a knife and turned around, pushing the man before he had the chance to stab him before ripping the knife out of his hands and punching him in the face, breaking his nose. "Take that!" When the first guy tried to get up a third time, Inosuke kicked him twice in the head, yelling, "Oh no, you don't!"
A third guy then yelled at Inosuke as he charged at him with a lit torch, "Fuck you and your knife!" It was clear that the projections in the dream were now trying to kill Inosuke.
"Fuck me? Fuck you!" Inosuke drew his gun and shot the man twice, killing him, before he shot the man who previously had the knife as well in the head. "These bastards wanna kill me, huh?! Well you'll have to do better than that!"
When a woman charged at him with a sword, she yelled at him, "Die, you fucking intruder! You aren't welcome here!"
Inosuke shot her once, but she kept going, so Inosuke dodged her sword and instead stabbed her in the back of the neck before kicking her to the ground. He then shot at a man with another knife twice, killing him. Realizing he was out of bullets, he yelled, "Shit! I don't have those bullet things anymore, and I don't have my swords!" He then stabbed another man who tried putting a bag over his head, causing him to scream as the two tussled, "Get the fuck off of me!"
The man who was stabbed yelled at Inosuke as he tried to get up and pulled a gun, "Fucking psychopath!"
"I'm not a psycho-whatever," Inosuke yelled back at him before he tackled the man before he had a chance to shoot him. He then deflected his gun away from him as the man pulled the trigger, firing a bullet into the air. Inosuke then stabbed the man again, killing him. He then took his gun and checked it, finding that it still had five rounds, and then closed it up. As he dashed off the back deck, he found that everyone else had seemingly run away despite the fact that his rampage should have resulted in a seemingly endless amount of projections attacking him. "Huh? Where the Hell did everyone go?" Angry that people had seemingly ran away from him, he yelled, "Are you bastards that fucking afraid of me?! Come on! Don't run! Fight me! I want a fight!"
…
Meanwhile, as Inosuke was fighting the crowd outside, the other three were sneaking their way through the house, all of them taking wildly different paths. Tanjiro, for example, simply snuck through the crowd inside the house. Nezuko, meanwhile, killed a maid, changed into her clothes, and then tied her hair up to disguise herself. James, meanwhile, went into his hotel room and tied himself off to the bed with a rope he had in the closet before rappelling down the side of the mansion and breaking open a window to access a kitchen.
Once inside the kitchen, James had killed two cooks with a knife before managing to get into the changing room once more. As he walked in, he said to himself, "Hah… Here we go…" He then pressed his ear against the door to the meeting room to check if anyone else was on the other side, and then opened it when he heard nothing.
Upon entering the meeting room, he immediately looked around before shutting the door again and then looking at the walls of the changing room to see if there were any unusual patterns or signs to indicate a potential opening. After spending a good minute and a half doing so, he noticed something and rubbed his hand along it, finding an unusual bulge in the wall. As he slowly peeled away the paint, he felt the building shake again, presumably from whatever was going on above them, but this time a bit more violently. Once it stopped, he peeled more of the paint before revealing what looked like a small cabinet inside the wall.
"What's this?" James then opened the cabinet and found a folder containing many sheets of paper, which he immediately realized were secrets within Yoichi's mind. "Found it." He then carefully read it over to generate a copy of the folder with his own mind, which appeared in his free hand. Once that was done, he placed it in the cabinet and closed it before carefully stowing away the real folder into his coat. With his goal complete, he opened the door to get into the meeting room and make his escape.
However, waiting for him in the meeting room was Yoichi himself plus two projections consisting of guards, who were holding Tanjiro and Nezuko at gunpoint. Yoichi yelled at him, "Hold it right there!"
"Saito-san," James addressed him. "What's going on?"
"Cut the shit," Yoichi replied. "I know you and your buddies here came to steal secrets from me under the guise of selling services to me. Your first friend was already killed."
"Inosuke?!"
"Yeah," Tanjiro admitted. "They shot him in the head when he kept resisting."
"Fuck," James muttered to himself. "That means he woke up."
Yoichi, curious about his intentions, asked him, "What do you want to know so bad?"
"I might as well tell ya," James began to explain. "We came here to find out the location of one of your clients. You see, we believe he's a demon by the name of Thomas Jackson. He also goes by the nickname of Stonewall Jackson."
"That guy? Demon? What the Hell?"
"So you know him?"
"Of course I know him," Yoichi replied. "Why do I have to disclose my dealings with one of my customers?"
"Because we're members of the Demon Slayer Corps," James told him as he pulled out his gun. "And we're here to stop people like him."
"Demon Slayer Corps? You mean those guys are real?"
"That's what we've been trying to te-" Nezuko was then interrupted by a kick to her chest by her guard. "Agh, fuck! Stop that!"
"Come on," James said to him. "Just let those two go. It's me ya want, right?"
"They helped you," Yoichi pointed out. "Why should I let them go?"
James sighed. "Fuck it. I already got what I needed anyway." He then aimed his gun at Tanjiro and shot him in the head to wake him up, followed by Nezuko. When both guards returned fire, he fired three more shots to kill them as well.
Yoichi, shocked, yelled at him, "You killed your own teammates?!"
"It's just a dream," James replied before aiming his gun at the side of his head and pulling the trigger, killing himself in the dream and waking himself up.
Now with just him left, Yoichi looked around and began to notice that the dream was beginning to fall apart. The walls were crackling, the ground shook even more, and he could almost faintly hear rushing water come from somewhere towards the house. "What the fuck is going on?!" Then, after a brief lapse in the collapse, water came rushing in from above, suddenly flooding the entire house and causing him to desperately try to grab onto something. "Aaah, help! Help me! Help!" As he began to drown, the dream totally and completely collapsed, and now, all of them would have to deal with the consequences of the dream in the real world as a storm raged through it.
