In the original work, Muzan used this attack when he was 9,000 years old, but even in this state, the shockwave he released still knocked back everyone around him, and they all rolled their eyes.

Obanai Iguro, the Serpent Pillar, was knocked unconscious by the shockwave.

Tanjiro was so shaken that he couldn't move.

The shockwave Muzan used at this moment was no weaker than that in the original story. This powerful shockwave swept in all directions, and the entire Infinity Castle trembled, as if Muzan was going to destroy the entire Infinity Castle along with it.

Even on the battlefield far away in another corner of the Infinity Castle, Nakime and Inosuke's side were affected...

"Tsk, how come this kid can climb so well?"

Nakime repeatedly toyed with Inosuke using her ability to manipulate the terrain of the Infinity Castle. At first, Nakime found it quite interesting, but as the number of times increased, she found it boring and even annoying.

"Don't even think about shaking me off! I, Inosuke, always keep my word! You demon, I'm going to chop off your head!!!" Inosuke shouted, pointing the blades of his two Nichirin Blades at Nakime.

Naruto, who was looking down, was barely able to contain herself. If she could, she really wanted to tear Inosuke's mouth off, but unfortunately, her Blood Demon Art did not do any damage at all.

Even though Muzan gave her the title of "Upper Moon Two," it was just for show, and Nakime didn't feel any change in herself.

The original ordinary demons were forcibly injected with Muzan's blood and turned into mass-produced Lower Moon demons without any sense of reason.

The original Lower Moons were wiped out by Muzan himself.

There was only one Upper Moon living, Doma. Even if you add her, who came temporarily to make up the numbers, there are only two Upper Moons in total.

Moreover, unlike Doma who received a "promotion" and a "raise," Nakime only had words and numbers appear in her pupils; Muzan did not give her blood to make her stronger.

This made Nakime realize a truth: a tool demon is always just a tool demon. If she could do it all over again, she would definitely strive to become an Upper Moon with combat abilities...

Seeing that Inosuke was about to launch another attack on her with great enthusiasm, she sighed helplessly. Just as she was about to pluck the biwa in her hand, the tremor that erupted from Muzan's side reached her.

Just like an earthquake, the sudden change startled Nakime, who had been sitting comfortably in the Infinite Castle for years, while Inosuke, who had lived in the deep mountains since childhood, was not significantly affected.

His dark green eyes were fixed on Nakime, and in the instant Nakime was stunned, Inosuke knew his chance had come.

"Beast Breathing - Flash of Inspiration Type - Explosive Throw and Slash!"

Inosuke gripped his Nichirin Blade tightly and hurled it like a javelin.

With a sharp "whoosh, whoosh, whoosh!" sound, Inosuke's Nichirin Blade spun rapidly through the air. Before Nakime could recover from her daze, the blade pierced her forehead, causing blood to splatter everywhere.

Perfect headshot!

"Damn it! It didn't hit my neck!"

Inosuke hurriedly charged towards Nakime with his other Nichirin Blade, intending to finish her off. Nakime, whose head had been blown off, paused for a moment before letting out a series of sharp, piercing screams.

Unlike other demons, Nakime has always been by Muzan's side since becoming a demon, and unlike other demons, she has not experienced bloody battles. As a result, her sensitivity to pain is almost the same as that of humans.

Inosuke's unique serrated Nichirin Blade pierced through her forehead, and the intense pain made her completely unable to focus on Inosuke, who was charging towards her at breakneck speed.

With Inosuke shouting "Charge! Charge! Charge!" repeatedly, Inosuke, wielding his Nichirin Blade, had already charged to Nakime's side and swiftly and accurately slashed at her neck.

Whoosh!

With a crisp, clear sound of a slash, Nakime's head, with the Nichirin Blade stuck in it, was severed and sent flying.

Following an arc-shaped flight path, Nakime's head rolled to the ground with a "thud!" Because of the Nichirin Blade stuck in her head, it couldn't even roll a few times on the ground.

The excruciating pain of being decapitated gradually subsided after the head was severed.

Of course, it's not just the sensation of pain that disappears.

Nakime's gaze was fixed on the Infinite Castle in her line of sight, and memories from her human days gradually surfaced.

During her human days, she made a living by playing the pipa. Despite her excellent pipa skills, she was not very popular. Her husband gambled all day long, which made their already poor family even poorer.

One day, her husband even sold the clothes she wore when she went out to perform in order to gamble. This was Nakime's bottom line. In a fit of anger, Nakime killed her husband with a hammer.

Even after killing her husband, she still had to work playing the biwa (a traditional Chinese stringed instrument). Helpless, Nakime had no choice but to go to her workplace to play the biwa, dressed in tattered clothes.

Although the guests showed displeasure at Nakime's tattered appearance, the tone of her playing was unanimously praised by them as soon as she began to play.

After that incident, Nakime would kill someone before each time she played the biwa. Over time, she even became addicted to the feeling of killing, until one day she turned her ruthless hand on Muzan who was passing by...

At this moment, Nakime's expression was very calm. She was very clear about her own position. As a tool demon, she did not think about breaking through the boundary of immortality after decapitation, because she knew that she could not do it.

After a moment of silence, Inosuke reached out and pulled the Nichirin Blade he had stuck in Nakime's head. Nakime's head and body gradually turned into dust and dissipated into the air a few seconds later.

Yi Zhishu gripped two swords, excitedly raising his head and laughing heartily. After all, the sense of accomplishment from finally winning after such a long and arduous battle was immense.

"Boss, my mission is complete..."

Inosuke's words were cut short as a violent tremor, even stronger than before, swept over the area, causing the surrounding buildings, including those beneath his feet, to collapse at a visible speed.

Startled, Inosuke started running, leaping wildly through the crumbling Infinity Castle.

The entire Infinite Castle was created from Nakime's "Blood Demon Art". Now that Nakime is dead, the huge Infinite Castle has lost its pillars, and its structure has collapsed. It has even returned to its original world from another dimension.

Infinite City has completely collapsed!