Final battle(end)

With a rumbling sound, a small city suddenly appeared on the outskirts of Tokyo. This city is Infinity Castle, which emerged from a hidden dimension following Nakime's death.

In the center of Infinity Castle, Kibutsuji Muzan appeared in a grotesque form: a massive ball of flesh covered in thorny whips that enveloped its surface. Caught between anger and helplessness, Muzan continued to struggle to unravel the poison spreading within his body.

Although he could neutralize the poison in his body, it took a long time.

Meanwhile, Haru, Shinobu, and the surviving Hashira rushed toward the center of Infinity Castle with a speed they had never shown before. Without Nakime's presence, who usually manipulated the structure of the castle, they were finally able to reach the location where Kibutsuji Muzan resided quickly.

Upon arriving at the scene, Haru and the other Hashira immediately confronted Kibutsuji Muzan. They knew they couldn't kill Kibutsuji Muzan, as he had overcome his weakness to beheading. Therefore, what they needed to do was to disrupt Muzan from unraveling the poison in his body so that he couldn't unleash all his power and drag the battle until sunrise.

"Fourth Form: Striking Tide"

"Dragonfly Form: Compound Eye Hexagon"

"First Form: Dance"

"First Form: Serpentint Bipolar"

"First Form: Unknowing Flame"

"Third Form: Flowing Dance"

Their movements flowed in harmony, each attack directed at Kibutsuji Muzan. Their swords glimmered under the dim moonlight, creating a terrifying shadow that reflected their determination.

... Swosh... swosh...

Facing their attacks, Kibutsuji Muzan's thorny whip waved wildly, accompanied by strong gusts as their attacks collided. Muzan's thorny whips were cut apart before they began to regenerate slowly.

Feeling that his current form was just a living target, Kibutsuji Muzan immediately stopped his work of unraveling the poison and returned to his human form.

Muzan's two hands transformed into red thorny whips. Four larger whips grew from Muzan's back. These four whips were harder than all of Muzan's previous whips.

"Always... always... always getting in my way... you all are like cockroaches that are hard to kill."

"Why are you getting in my way? Am I not just killing a few humans compared to earthquakes, volcanic eruptions, tsunamis, and other natural disasters? The humans who die at my hands are few. Have you ever hated natural disasters? No. Why don't you just consider their deaths as natural disasters!" Muzan shouted irrationally.

"Kibutsuji Muzan!!!!!!!"

Hearing Kibutsuji Muzan's irrational statement, they all became enraged and attacked even more fiercely.

... Swosh... Boommmm

Muzan's whip struck the ground as they dodged.

"Second Form: Rising Scorching Sun"

Rengoku arrived in front of Muzan like a flash of fire and slashed his sword vertically from below, successfully cutting Muzan's right-hand whip before jumping back as Muzan attacked him with the whip on his back.

"Sixth Form: Waterfall Basin"

Giyu leaped high into the sky and struck down with the force of a waterfall.

"Fall back!!!"

Haru shouted to remind the Hashira while jumping back and pulling Shinobu, who was nearby.

... Boom...

Muzan unleashed a sonic attack that caught them all off guard, creating a large dent several meters away. Due to the sudden attack, the Hashira were injured to varying degrees; if it weren't for Haru's warning, they would have been seriously hurt. Giyu, who was closest to Muzan, was sent flying hundreds of meters and crashed into a building, his life or death unknown.

"Tomioka!!!"

"Focus, killing Muzan is more important right now," Gyomei said earnestly.

Hearing Gyomei, they all temporarily set aside their concern for Giyu.

.....

On the other side, the other Demon Slayer members were not sitting idle. Aware that they were facing a siege of hundreds of low-ranking demons trying to approach the main battle site, they united to protect the Hashira. With a high fighting spirit, they formed a defense line, battling against the wave of attacking demons. Every attack launched by the demons was swiftly met, and their skills and cooperation became the key to overcoming the existing threats.

.....

"Kibutsuji Muzan!"

Tanjiro shouted angrily, seeing Giyu's uncertain condition.

"Seventh Form: Beneficent Radiance"

Tanjiro leaped with a spinning motion, then unleashed a fiery slash toward Muzan.

The intense heat reminded Muzan of Yorichi Tsugikuni, and for a moment, his body trembled in fear. Tanjiro's slash managed to behead Muzan, but only for a brief moment, as the head reattached.

"Tenth Form: Constant Flux"

Haru's attack arrived shortly after Tanjiro's, slicing off Muzan's four limbs.

"Quick, chop Muzan's body into pieces. Do as much as you can to slow down his regeneration!" Haru shouted while continuing to sever Muzan's hands and feet.

Hearing this, the eyes of the other Hashira lit up as they remembered the story told by Haru, where Yorichi Tsugikuni nearly killed Muzan by cutting him into hundreds of pieces in an instant. Although they couldn't do that alone, they must not forget that they were not fighting alone.

With their numbers and strength, it wouldn't be difficult to cut Muzan into hundreds of pieces in an instant.

Muzan felt fear upon hearing this.

"No....!" his voice was silenced as his head was cut off by Mitsuri.

Swosh... Swosh... Swosh... Swosh.

They continued to slice without stopping for hours until the sun began to rise slowly. Its warm golden rays seemed to bring hope and celebrate their victory.

The sunlight fell on Muzan's flesh pieces and burned them to ashes. Without a place to hide, the progenitor of demons, who had lived for a thousand years and brought disaster upon humanity, came to an end.

Despite achieving victory, the casualties in the battle were significant. Even Giyu, Sanemi, and Tengen died in the battle, while Tokito lost an arm. In addition, nearly a third of the demon slayer members also perished in the fight.

Haru observed everything that happened calmly while sighing. He knew that in his long journey in the Tower of Reincarnation, he would experience more things, and he might even get killed. To avoid this, he had to wisely utilize every resource he had.

Haru looked at Shinobu beside him, who was crying between sadness and happiness. He hugged Shinobu tightly as if he wanted to merge her into his body, unsure of when he would meet her again, or if they would ever meet.

But he could only try to find a way for that.

Shinobu was momentarily stunned as she felt Haru's tight embrace. She didn't know why, but it seemed that Haru would be going far away from her. So she hugged him tighter. Neither of them spoke.

The other demon slayer members were also crying and shouting loudly, conveying their messages to their families who had died at the hands of demons. Even though they knew their words would not reach them, they still did so.