Chapter 6: Demon Slayer Blade, Part 1

I arrived in the Demon Slayer world.

The timeline was the beginning of the original story.

‘I mustn’t be late…’

I was ascending the mountain.

Utilizing my superhuman physical abilities to their fullest.

At the start of Demon Slayer, the protagonist’s family is slaughtered by Kibutsuji Muzan, the final boss.

Tanjiro, arriving late, finds his slain family and his younger sister, Nezuko, transformed into a demon.

Nezuko, driven by her demonic nature, attacks Tanjiro.

However, while Tanjiro stalls for time, Nezuko regains some of her sanity.

As a result, Tomioka Giyu, the Water Hashira, who arrives later, acknowledges Nezuko’s difference from other demons, allowing Tanjiro to embark on a demon-slaying journey with his sister.

I intended to alter this.

Since I planned to defeat Kibutsuji Muzan myself, there was no need for Tanjiro to awaken the Sun Breathing technique.

While his awakening would be beneficial, it wasn’t essential.

My purpose in this world was to grow stronger.

I would defeat Kibutsuji Muzan and grow stronger by my own hand.

To defeat Shigaraki.

‘To create a better world for Himiko.’

I would persevere.

After a swift ascent, Tanjiro’s house came into view.

Fortunately, I wasn’t too late.

Tanjiro’s family was still alive.

Although, had I been even slightly later, they would have been slaughtered by Muzan, who stood there menacingly.

He stared at me with chilling crimson eyes.

“Who are you?”

I remained silent, assuming a combat stance.

I intended to test the Demonic Sword Technique I had learned.

“You won’t answer?”

The moment he spoke, I moved.

[Demonic Sword Technique Demonic One-Sword Strike]

My blade pulsed with a vibrant aura.

Originally blue, it had shifted to black due to the Demonic Sword Technique.

The transformed aura surged forward, ready to cleave through anything.

‘With this level of power…’

I anticipated significant damage to Kibutsuji Muzan, but as the dust settled, he stood unscathed.

“Hmm. Interesting. What Breathing style is this?”

Ignoring his question, I executed the second form of the Demonic Sword Technique.

[Demonic Sword Technique Demonic Formation]

While Demonic One-Sword Strike was a direct attack, Demonic Formation utilized rapid, spell-like movements to overwhelm the opponent.

I charged towards Kibutsuji Muzan at my maximum speed.

His eyes widened in surprise.

Clang!

However, my attack was ineffective.

He caught my blade with a single hand, neutralizing my attack.

“Hmph. Nothing special. Just speed. Now, it’s my turn. Let’s see how you handle this.”

With my attack thwarted, it was Kibutsuji Muzan’s turn to strike.

He swung his free hand, sending me reeling backward with a powerful blow.

I looked down to see a clear mark on my chest.

Blood flowed freely from the wound.

‘That hurts.’

The pain was undeniable, but bearable.

My battle experience allowed me to endure far worse injuries.

However, the situation was unfavorable.

While not a major injury, it would become a disadvantage over time.

Blood loss would eventually take its toll.

I had to put everything into my next attack.

I prepared the final form of the Demonic Sword Technique.

The most powerful of the three forms, I was confident it would inflict damage on Muzan.

[Demonic Sword Technique Demonic Heaven Splitter ]

My blade tore through the air towards Kibutsuji Muzan.

“This is somewhat dangerous.”

Unlike before, he used both hands to block my attack.

‘Was it not enough?’

As the smoke cleared, Kibutsuji Muzan’s body was riddled with wounds.

However, considering he was the Demon King, these injuries were insignificant.

I sighed as his body regenerated rapidly.

‘Still, it’s fortunate…’

The sun was rising.

The sun that Kibutsuji Muzan feared.

“It ends here…”

He vanished into the forest.

After confirming his departure, I turned my attention to Tanjiro’s family.

Nezuko, Tanjiro’s younger sister, couldn’t believe what she had witnessed.

The mere existence of demons, thought to be mere legends, was enough to shock her.

But a human confronting a demon? It shattered her understanding of the world.

‘Who is that person?’

Like anyone encountering the unknown, she was filled with questions. She voiced her curiosity, “Who are you?”

The man smiled and replied, “A Demonic God.”

See next chapter