The same night James and Susamaru began their two weeks of demon hunting alone, Muzan summoned the three remaining Lower Moons to the Dimensional Infinity Fortress. He had told them prior that he would be meeting them on the 14th of April, but did not tell them where and when on that day, causing all three to act rather surprised when they suddenly found themselves in the heart of Muzan's expansive headquarters. As they looked around, Muzan mentioned to Thaddeus, who stood beside him, "I tried to bring Mukago here, too, just to see if I had control over here, but it looks like that little spell the Mist Pillar did worked." He then turned to his three subordinates with an annoyed look on his face. "Welcome to the Dimensional Infinity Fortress. "

Enmu, Lower Moon 1, looked to Muzan, who was in his female form, and asked his master, "Muzan-sama, what brings us together tonight?"

"The deaths of Rui and Kamanue," Muzan coldly explained to all of them. "And the betrayal of Mukago. This is the final straw for your circus of clowns. While the Upper Moons have gone a full one hundred years without being killed, I have to replace one of you fucksticks every year either because you're not good enough or you get yourselves foolishly killed." His tone began to get angrier with every passing sentence, only heightening their fear. "Wakuraba, give me a reason why I shouldn't execute you right now for your incompetence, and it better be fucking good."

Wakuraba shivered as he replied to his master, "Muzan-sama, I'm one of your most loyal Lower Moons. You've said it yourself. I seek only to improve myself!"

"Okay," Muzan replied to him, unimpressed. "But that isn't really an argument against what I just said, retard. You can be loyal all you want, but if you're not good, it doesn't fucking matter."

Rokuro, by now beginning to panic, thought to himself, "Muzan-sama, you need to understand where we're coming from here. We aren't supported enough."

Muzan immediately could hear his thoughts, and replied to him out loud with, "Who the fuck uttered that thought in their head? The person who did better fess up right now before I rip it out of you." After an incredibly tense pause for a full half-minute, Muzan spoke again, warning them, "I'm going to give you dunces exactly three fucking seconds before I kill you one by one starting with Wakuraba. Three… Two…"

"It was me," Rokuro yelled out. "I thought of it! Forgive me, Muzan-sama! Maybe the solution to your problem is that you haven't given us enough blood. If we were, I know I at least would be able to slaughter demon slayers with even more ease, and maybe even wipe out a few Pillars at once!" He was trying to say anything he could to save his own life, but Muzan was not convinced.

"So now you're telling me what to do," Muzan angrily told him. "Out-fucking-standing, Rokuro! The subordinate is telling his boss what to do!" He then let out a laugh, amused by his suggestion and his perceived slight of his authority over him. Once the sickening laugh was over, he sighed. "Guess what, shit-for-brains, you know what you get for confessing to me and trying to tell me what to do? You get exactly what you fucking deserve, and that's being the first to be exterminated like the vermin you are." He then snapped his fingers.

In an instant, Rokuro felt his body heat rising as he began to cry, begging for forgiveness. "Muzan-sama, please, forgive me! I beg of you!"

"Even as you begin to die," he replied, not caring whatsoever for a concept like mercy. "You still try to command me. It's no wonder you'll be the first to die."

Rokuro's chest was then ripped open as arms emerged from his mouth and abdomen, ripping him apart from inside out and splattering Enmu and Wakuraba with his blood and guts. The sickening sight was only worsened when Rokuro's remaining body exploded, turning the platform they were on into a mess of crimson and pink. Wakuraba screamed in fright as he thought to himself, "Fuck this, FUCK THIS, FUCK THIS! I'M GETTING THE FUCK OUTTA HERE!" He then dashed off the platform in an attempt to escape Muzan as an astonished Enmu watched. "If I can only find the way out of the fortress, I can run away from all this! I'm fucking done being Muzan's slave!"

"You can run," Muzan then interrupted him inside his head as his body heat began to rise. "But you're insane if you think you can hide from me. I am all knowing, Wakuraba. Why the fuck do you think they call it the Curse of Muzan, dumbass?!" With the snap of his fingers from afar, Wakuraba was also ripped apart from the inside out, his body exploding and its pieces falling into the bottomless pit of the Dimensional Infinity Fortress. "Now, Enmu, what do you say?"

Enmu, who was on his knees and was now oddly calm, was almost at peace with the idea that he was most likely going to die. "I feel honored that I will die at your hands, Muzan-sama. I enjoyed hearing the pained screams of the other two as you slaughtered them. I enjoy seeing the suffering of others who cross you or defy you. Do with me as you wish, Muzan-sama!"

Muzan looked to Thaddeus and nodded. "Very well. This was our plan from the beginning. My confidante Thaddeus here will give you a syringe containing my blood. Once he gives it to you, I want you to help me recruit five new Lower Moons, and then in four months, you will take part in a great plot that will allow us to cause panic across all of Japan."

Thaddeus approaches Enmu with the syringe, telling him, "Don't worry, this won't take long, son."

As Thaddeus found a spot on his arm, Enmu asked Muzan, "And what is this glorious plan?"

"You will team up with one of the Upper Moons to commit an act of terrorism," Muzan explained. "We are currently identifying several possible targets on the Japanese national rail system. Kill as many people as possible in repeated attacks. I am tired of staying in the shadows and being unknown to the city folk of Japan. I want to make the whole country aware of us, and when we strike the very heart of Japan's transport system, we will make their pathetic Emperor and his government bow to us."

Right after he finished, Thaddeus pushed the blood into Enmu's arm, causing him to tense up as he felt a surge of power rush through his body. "Muzan-sama, your blood feels wonderful, just as wonderful as your plan! I bet that we won't just make Japan bow to us. No, I feel like we can make the whole human world bow to us!"

Muzan and Thaddeus smiled, admiring his enthusiasm. The former told him, "Your energy and enthusiasm are why I kept you around, Enmu. With you, we will not be disappointed." After a brief pause, he gave him one last command. "Also, if you can kill the demon slayer with hanafuda earrings, as well as James Colby and Susamaru, I'll give you even more blood. Does that sound good?"

"It sounds absolutely wonderful," Enmu exclaimed in ecstasy. "Absolutely wonderful indeed, Muzan-sama!"

As James and Susamaru walked along a path inside Mount Fujikasane, they had their main guns out with them, ready to strike at any moment. Then, James held his free hand out and told Susamaru, "Stop. I sense somethin'." Then, both of them saw a shape move in front of them within the forest, and it was of a humanoid shape. "Right there!"

Susamaru fired a blast of her shotgun in the direction of the shape, causing it to stop and yelp in pain. "Alright, we got it to stop in place!"

"You got me," replied a demon with three horns protruding from his forehead as he emerged from the cover of the trees. "I can already sense from you two that you are of our kind. Did the demon slayers drop you off here to join us?"

"No," Susamaru denied as she pumped out the empty shell from her gun. "We were dropped off here to kill as many of you as we can for the next two weeks and survive."

"Now this is peculiar," the demon replied to her as he ripped off a piece of his skin, causing blood to fall from the wound he made on himself and the ripped-off skin in his hand to form into a kunai knife. "Demons hunting their own kind, huh? How about we play around?!" He then dodged a second blast from Susamaru's shotgun and threw the knife in her direction, causing it to lodge in her shoulder.

"Fuck!" Susamaru winced in pain before she ripped the knife out of her skin. As soon as she did, though, the knife exploded in her hand, ripping it off and causing even more pain." Agh, shit! My fucking hand!" She dropped her shotgun as her hand reformed, using her remaining hand to rip her yukata off and spawn her four extra arms. "You wanna play the old-fashioned way? Then we'll do just that!"

James fired two rounds from his rifle at the fast-moving demon, but missed each time. A single successful wisteria buckshot blast would not be enough to adequately poison the demon, and James' bayonet was only regular metal. He then felt another kunai knife hit him in the back, causing him to fall as he screamed in pain and Susamaru spawned six handballs, throwing all six in every direction to see if she could hit him, but all six missed. "He hit me right in the back!"

Susamaru immediately used one of her extra hands to pull the kunai, knowing that it would blow up as a result. When it did, she fell to the ground as well from the pain before staggering back up to her feet. As two of her handballs came flying back, most likely having been picked up by the demon and thrown back at her, she barely dodged them as they hit several trees behind her. "Damn, that was way too close!" She then picked up the shotgun on the ground and yelled out as she fired off every single shell left in it in every direction she could think of, by now deeply annoyed by this demon with knives. "Fucking die already!"

After she fired off all the rounds, she heard a thud in front of her and ran to its source, losing her extra arms in the process as she no longer needed them. James quickly followed her once his injuries healed and asked her, "Did ya get 'em?!"

"Yeah," she replied upon seeing the demon writhing on the ground in pain. "The poison must be kicking in."

"You poisoned me?! You sick fucks, how could you give one of your own wisteria?!" The demon then let out a primal scream of rage and fury as his body dissolved into nothing, leaving only a puddle of blood and his clothes on the ground, as well as an unused exploding kunai knife he had been holding when the wisteria took effect.

"One down," James remarked to himself and his partner. "God knows how many of these guys to go."