Yushiro's current pain, watching his most beloved person die before his eyes, was unimaginable.
The Infinity Castle, under his control, began to ascend towards the surface, and Muzan's mood plummeted with the castle's ascent, but what terrified him most was the person standing before him.
"Kibutsuji Muzan... Muzan!!!"
Tragedies caused by demons flashed through his mind, and the scene of the village that night once again appeared before his eyes.
The source of all this was now right in front of him; anger filled his chest, and Musashi roared, his Nichirin Sword, wreathed in flames, radiating a scorching aura as his figure rapidly closed in on Muzan.
At the same time, the meat seeds in the air once again unleashed their Blood Demon Art, and fourteen figures simultaneously descended into the Infinity Castle.
"The decisive battle begins! There are no other demons now, everyone, attack Muzan with all your might!"
Kiriya's voice was transmitted to everyone's ears through Yushiro's talismans.
In fact, they didn't need his reminder; the moment they were teleported to the Infinity Castle and saw Muzan, everyone already had their target.
Facing the seemingly hopeless scene before him, Muzan gave up on regaining control of Nakime; he no longer had the time.
If it couldn't be used for him, then destroy it directly!
The Muzan's blood within Nakime was controlled by Muzan, and in the next instant, her body exploded.
The Infinity Castle let out a rumbling sound at this moment, as if it was about to be destroyed.
At the same time, Muzan turned and fled in the opposite direction from Musashi, countless black blood thorns growing from his back and lashing out at Musashi, attempting to block his path.
Damn it!! Tamayo, that bitch!! To actually cooperate with the Demon Slayer Corps!!
Muzan's hatred for Tamayo surged at this moment, no longer having his previous disdain.
"Sun Breathing • Scorching Bone Flame Sun!"
The spiral slash struck Muzan's thorns, severing them in an instant, and the flames burned the severed ends, transmitting bone-scorching pain to Muzan's body.
The feeling he had when facing Yoriichi years ago resurfaced, the bone-scorching pain just like that night hundreds of years ago.
Boom!
Just as Musashi was about to pursue Muzan, the wall beside him suddenly shattered, and countless demons rushed in, blocking Musashi and Muzan, separating the two of them.
At the same time, Akaza and Douma also appeared beside Muzan.
"Stop them for me!!"
After shouting at Akaza and Douma, Muzan continued to run forward, simultaneously seizing all the remaining food in the Infinity Castle, devouring it to gain power as he fled.
"Everyone... go up!!!"
Even though Nakime had been killed by Muzan, Yushiro still used her remaining flesh and blood to control her, intending to bring the entire Infinity Castle to the surface.
The sudden surge of a large number of demons allowed Muzan to create some distance from Musashi, and the tide-like demons simultaneously pounced on Musashi.
"Now, proceed according to the original plan! Swordsmen responsible for eliminating Muzan, go forward and assist Musashi, while others engage the other two Upper Moons!"
With the change in the battle situation, Kiriya also made a judgment at this moment, commanding everyone through Yushiro's talismans.
"Amitābha..."
Gyoumei rushed towards Musashi's direction, carrying his chain, the meteor hammer at one end and the broad axe at the other crashing together under his control, after which both turned crimson.
"This time, I can kill to my heart's content!"
Sanemi looked at the tide-like demons before him, drew his Nichirin Sword, and said with a grin, at the same time, he also rushed towards Musashi's direction.
"Muzan!!!"
Tanjirou, upon seeing Muzan, drew his blade and charged straight at him; just seeing this guy had already filled his chest with anger.
And Genya also followed Sanemi, intending to support Musashi.
However, in the next moment, a shocking sight appeared before them.
The seemingly endless demons before them extended their sharp claws and bared their fangs at Musashi, among them even some nearly four-meter-tall aberrant demons.
Seeing this, Musashi showed no panic, gripping his Nichirin Sword tightly, a red more vivid than usual surged from the blade, and even hotter flames, like the sun's fire, clung to it.
"Sun Breathing, Third Form: Blazing Bones, Setting Sun."
In the next instant, Musashi's arms transformed into countless afterimages, and a large number of flame-wreathed arc-shaped slashes flew forward in a fan shape from his body, the number of slashes as countless as the demons in this area.
Hiss~
The flame slashes collided with the demon tide in front, and then, like a red-hot iron rod plunged into snow, the demons were like the accumulated snow on the ground, immediately beginning to melt as the slashes touched them.
"Ah!!!"
A few screams were heard, but more demons were slain by Musashi and disintegrated into ash before they could even scream.
The originally fierce demon tide was almost completely annihilated by Musashi's single strike, with only a few scattered demons outside Musashi's attack range managing to escape.
Moreover, Musashi's slashes, after passing through this demon tide, continued to rush towards Muzan and the two Upper Moons in front.
"Blood Demon Art: Crystalline Divine Child, Lotus Bodhisattva."
Douma, located beside Muzan, waved his fan, and a giant ice figure rose from the ground, resembling a Bodhisattva with hands clasped together.
The slashes continued to collide with the ice Bodhisattva created by Douma, and the sound of melting resounded again; the giant ice Bodhisattva completely turned into steam, but at the same time, it also blocked Musashi's slashes, which had been weakened by the demon tide.
Douma was greatly shocked by this; this move was already the strongest technique he could currently use, and he had used it with full power just now, yet it was still instantly obliterated by the opponent's attack, which had already slain countless demons equivalent to Lower Moon strength.
If the opponent had achieved this result with a powerful technique, it would have been fine, but he had clearly heard "Third Form" just now.
For such an early form to possess such formidable power, Douma now seemed to understand why Muzan had fled and how Kokushibou had died.
Furthermore, this was the first time he had heard the name of the Breathing Technique called Sun Breathing.
This kind of power...
Musashi's single move not only stunned the demon side, but the participating Demon Slayer Corps members were also awed by his power, and Gyoumei and others, who were preparing to provide support, paused, feeling a bit bewildered.
Their understanding of Musashi's strength was solely based on his combat record; they had hardly ever seen him fight, and those who had seen him fight either, like Kyojuro, had seen him during his practice, or, like Zenitsu, had only seen him deal with weaker demons.
And when facing those weaker demons, Musashi hadn't even used sword techniques, let alone displayed his true strength.
"This young man's strength is truly terrifying, Akaza-kakka, I suppose we're going to die here today."
Douma feigned an expression of fear and spoke to Akaza beside him.
Just then, the already shattered Infinity Castle was manipulated by Yushiro through Nakime and thrown onto the ground, exposing everyone to the night sky...