Above the night sky, stars twinkled; though it was deep into the night, everything remained clearly visible.
A gentle breeze blew, and tree shadows swayed.
A mass of blood passed through the forest, floating above an open clearing, then flew straight down, burrowing underground.
From a perspective unseen by others, two figures followed this mass of blood to the clearing.
Tamayo and Yushiro exchanged glances, neither speaking, then Yushiro took out another talisman and placed it on his forehead, immediately activating the visual sharing effect of his Blood Demon Art.
...
At the Demon Slayer Corps Headquarters,
The scene before Musashi, who was sitting on the steps gazing at the moon, suddenly changed, and a vast, empty plain appeared before him.
"Did you find it..."
Musashi immediately reacted, stood up, and took a small bottle from his Pregnant, smearing the blood inside onto himself.
At the same time, at the Ubuyashiki Estate, Kagaya's vision also changed, thanks to the talisman Yushiro had left.
"Begin... prepare..."
Kagaya spoke to Kiriya beside him. Kiriya also had a talisman on his forehead, but his talisman's effect, besides sharing vision, could also transmit sound.
Besides Kiriya, Amane and Kiriya's sisters were also there, ready to assist him in commanding.
After Tamayo and Yushiro set off, they would wait like this every night until today, when Yushiro shared his vision. The Demon Slayers participating in the final battle were doing the same.
Upon hearing Kagaya's words, Kiriya nodded.
"Everyone, the decisive battle is about to begin! Everyone, prepare for teleportation first!"
Kiriya's voice was transmitted through the talisman to all the Hashiras and other Demon Slayers participating in the final battle...
...
In the Infinity Castle,
Nakime suddenly noticed a mass of blood burrowing into the Infinity Castle.
"This is... Blood Demon Art?"
The current situation left Nakime somewhat confused. While she was dazed, the mass of blood had already flown away, burrowing into a room within the Infinity Castle.
Muzan, who was reading medical books in the Infinity Castle, discovered a mass of blood flying into his room, and its aura clearly originated from himself.
"Master Muzan, it seems a demon has used a Blood Demon Art on you. Do you need me to teleport this thing out of the Infinity Castle?" Nakime plucked her biwa, teleporting herself to Muzan's side, and asked him.
Muzan found the situation before him somewhat amusing.
"A Blood Demon Art that can track..."
"No need. Do you really think a demon can threaten me?" Muzan turned his head and glanced at Nakime, saying.
"Yes." Nakime lowered her head and said nothing more.
In Muzan's view, as long as it was a demon, it posed no threat to him. Any demon could be easily killed by him. This was not a matter of strength, but rather the bloodline suppression he possessed as the progenitor of demons.
However, he overlooked one point: demons who had broken free from his control would not be affected by this ability.
Over thousands of years, the demons who had broken free from his control were few and far between. To date, Muzan only knew of Tamayo. However, in his eyes, Tamayo's strength was no threat at all; he only wanted to kill her because she knew too much information about him.
The mass of blood floated before Muzan. Seeing this, Muzan gently touched the blood mass, absorbing it into his body, and then a slight numbness appeared.
Upon feeling this slight numbness, Muzan frowned. The next instant, the toxins contained in the blood were decomposed by him.
"Can use Blood Demon Art, and also uses poison..."
A name surfaced in Muzan's mind, but this thought was quickly dismissed by him, because he knew that the other party's Blood Demon Art was completely unrelated to this.
"Who did this? Are they planning to kill me with this level of poison? How ridiculous."
Just as Muzan was pondering the other party's intention, several flesh seeds suddenly appeared in the air around Muzan. Immediately, countless sharp thorns were released from those flesh seeds, riddling the entire room like a beehive. Muzan himself was also pierced and impaled by these thorns, as was Nakime beside him.
"It's Blood Demon Art again... but this level of Blood Demon Art can be absorbed very quickly..."
Seeing this, Muzan began to activate his body to absorb the thorns that had pierced him.
"Now it seems someone has entered..."
When that mass of blood appeared before him, Muzan hadn't thought of this, assuming it was just a long-range Blood Demon Art. But when those flesh seeds appeared, he was already certain that someone had invaded the Infinity Castle.
"Did they use an ability to obscure vision?"
Muzan thought to himself, then planned to use a wide-range Blood Demon Art attack to force the intruder out.
He guessed that the other party must possess an ability to obscure vision, otherwise Nakime's eyes left outside shouldn't have been useless, and the other party had clearly already entered the Infinity Castle, yet he still hadn't seen them.
Just as Muzan was about to use his Blood Demon Art, he suddenly discovered that his Blood Demon Art seemed to be suppressed.
"Was it the poison just now?"
However, this suppressive effect did not last long; it was decomposed by him in an instant. Countless black blood thorns extended from his back. At this point, the Blood Demon Art thorns that had pierced his body were also almost completely absorbed by him.
Just then, a figure appeared before him, and a fist struck his abdomen, which he absorbed along with it.
"Tamayo?!"
Gazing at the figure before him, Muzan felt somewhat surprised, but not overly shocked.
He had just thought that this might have been done by Tamayo, but because the Blood Demon Art didn't match, he had dismissed that idea.
However, he then thought about it again and realized that besides Tamayo, it seemed no one else could have done this.
Facing the situation before him, Muzan did not panic; he even felt that Tamayo was currently committing suicide.
"I never thought that I wouldn't come looking for you, but you would come looking for me, Tamayo. Do you find living too boring and have come to die?"
After discovering that the intruder was Tamayo, Muzan relaxed his guard and mockingly said to Tamayo.
Or rather, as long as he didn't encounter Musashi, Muzan would not be on guard.
"Muzan, you just absorbed my left hand, right? Do you know what my left hand was holding?
That's a medicine that can turn demons back into humans! How about it? Has it started to take effect? It will turn you back into a human! It will take away your strength and your lifespan!"
Facing Muzan's mockery, Tamayo retorted.
She and Yushiro had already activated a Blood Demon Art that could teleport them to the location of their own blood after Muzan's mass of blood reached him, thus entering the Infinity Castle.
Then she released another type of thorn Blood Demon Art, which she had extracted from the ordinary person who was attacked by Muzan in Asakusa.
And then, just as Muzan was about to release his Blood Demon Art, she appeared, both to protect Yushiro, who was still hidden there, and to deliver a larger dose of the medicine into Muzan's body, while also making him relax his guard.
Now, the large-scale teleportation Blood Demon Art was also already being prepared, hidden by Yushiro's Blood Demon Art...