Demon Slayer: The Journey That Began When I Became Yoriichi's Sister

It's like a blade embedded deep in rock, impossible to budge.

Tanjiro's eyes showed deep astonishment, and his arm trembled as he exerted himself.

Perhaps it was due to his height, but the six-eyed monster in front of him gave him a much stronger sense of oppression than Miss Yuko.

Having already adapted to Miss Yuko's fighting spirit, her body began to tremble again.

Kokushibo intercepted the Nichirin Blade with one hand, while raising the other hand high, the blade covered with eyeballs standing upright.

At that moment, Tanjiro even held his breath.

In a daze, it felt like I was back in the afternoon at the Butterfly Mansion, when I, Zenitsu Inosuke, Kanao, and Mr. Rengoku were working together, but no matter what we did, we couldn't defeat or even suppress Ms. Yuuko.

In her battles with them, Ms. Yuko often blocked their slashes simply with her hands.

The disparity in combat strength between the two sides was so desperate that it left one feeling utterly powerless...

Kokushibo swung his sword down, but it was unclear whether he was too casual or simply didn't take it seriously.

The blade's speed wasn't particularly fast; it seemed to move almost randomly.

Seizing the opportunity, the one-armed Tengen Uzui lunged at Tanjiro, knocking him aside. The two rolled around on the ground.

Tanjiro struggled to his feet, exclaiming in alarm, "Mr. Uzui... your hand..."

"It's nothing," Yuzui Tengen replied with difficulty, his cheeks already covered in cold sweat from the pain.

He clutched his bleeding severed arm, not having time to treat his injury, and stared intently at Kokushibo.

The situation hasn't changed; in fact, it's gotten worse.

Originally, it might have only been him who was sacrificed...

Kokushibo, still holding Tanjiro's blade in his hand, slowly turned around, his six eyes staring directly at them.

His leisurely posture was like taking a stroll.

As Kokushibo took a half step forward, Uzui Tengen's muscles tensed instinctively, his eyes fixed intently on Kokushibo.

Kokushibo casually threw the blade, which landed in the ground in front of Tanjiro.

Tanjiro looked at Kokushibo with surprise and doubt, not understanding the other's behavior.

Kokushibo didn't seem to care, and calmly said, "This weak power can be called the Breath of the Sun?"

Tanjiro felt as if he had been struck by a heavy hammer.

"Don't even mention being close to Yoriichi, even Ikuko, who isn't good at Sun Breathing, is far stronger than you."

He and Muzan killed all the humans who knew about the Breath of the Sun because they were worried that this breathing technique would pose a threat to them.

But hundreds of years have only proven one thing.

The strength wasn't in the breathing technique, but in Yoriichi.

In comparison, the Sun Breathing technique used by the boy in front of him was as immature as a child's.

"If Yuko sees you as the hope of defeating Muzan, then she is really stupid."

Even though we've been hiding for hundreds of years, what good will it do to find this boy who can use the Breath of the Sun?

In his opinion, Tanjiro's only advantage might be that he is more suited to the Sun Breathing than him and Ikuko, and that using it would not cause any side effects.

Tanjiro gritted his teeth, stood up, and drew his Nichirin Blade.

He was well aware of his own weakness.

but……

We cannot back down here...

He wanted to prove that Miss Yuko was not a fool.

Uzui Tengen stopped him, staring at Kokushibo and said, "Now is not the time to act rashly. Listen carefully, leave this to me, you go and meet up with her first."

Tanjiro understood what he meant and took a deep breath. "Mr. Uzui, this should be the place where the wounded go to seek help."

"Idiot, now is not the time to be reckless..." Yuzui Tengen had just finished reprimanding them when a slow, death-like voice came from behind them.

"There's no need..."

Upon hearing the sound, the two dodged to the left and right.

"Get out of the way!" Uzui Tengen's panicked voice came from afar.

Tanjiro stomped on the ground, quickly turned around to look back, and Kokushibo's figure was already close at hand.

Are they attacking him?

Tanjiro, trembling with fear, exhaled a red aura as he swung his Nichirin Blade horizontally in front of him.

"Sun Breathing - Third Form - Blazing Red Mirror!"

Two orange-red arcs of light slashed out from the left and right, like the red sun reflected in a mirror.

“It’s really quite weak…” Kokushibo calmly raised the blade and then flicked it lightly.

The Nichirin Blade and the Demon Blade clashed, never even reaching a stalemate for a moment.

Click...

The black blade snapped off with a snap, flipped several times in mid-air, and then embedded itself in the ground.

Tanjiro's breath hitched, and a moment of blankness appeared in his red eyes.

He remembered what Miss Yuko had once said.

When the skill levels of humans and demons are roughly equal, and disregarding Blood Demon Arts, in a pure weapon battle, the Nichirin Blade actually has a greater advantage.

Since most of the demons' weapons are made from their own flesh and blood, in a head-on confrontation, the Nichirin Blade is generally stronger.

but……

His sword was broken by the demon's blade.

why?

He had already awakened the exact same markings as Miss Yuko...

Kokushibo didn't stop. His powerful body pressed down on Tanjiro, grabbing him by the neck and lifting him up.

"Ugh..." Tanjiro reached out in pain, trying to pry Kokushibo's fingers open, but he couldn't manage it.

"Let him go!"

Uzui Tengen charged forward with a sword in one hand.

Without even turning his head, Kokushibo unleashed a purple crescent-shaped slash, which arrived in front of Uzui Tengen in the blink of an eye.

Uzui Tengen gritted his teeth and charged forward, brandishing his blade.

We can't hold them off!

The powerful slash almost knocked him over. Yuzui Tengen's muscles bulged, and he roared.

"what!"

He slammed the blade into the ground.

boom!

With a loud explosion, the crescent-shaped slash embedded itself in the ground, raising a cloud of dust and creating a huge crater in the ground.

Using the cloud of dust, several kunai shot out through the smoke.

Kokushibo frowned slightly, glanced back, and casually swung his sword again, the air-swept strike shattering all the kunai.

Suddenly, a gust of wind swept past my side.

Kokushibo leaned back slightly and looked back. He saw a beautiful figure on Tanjiro's shoulder, supporting herself with one hand, leaning her body and sweeping her right leg towards Kokushibo's head, as if she wanted to kick him to pieces.

ghost……

Moreover, it's a demon whose aura is almost identical to that of an Upper Moon demon...

He had sensed the presence of the boy in the box long ago, so he did not show much emotional fluctuation.

Swish! !

A chilling glint of light flashed, and a look of pain crossed Nezuko's face as her right leg was severed in an instant.

But enough is enough.

Taking advantage of this surprise attack, Nezuko grabbed Tanjiro by the collar and quickly retreated.

Steadying himself, Tanjiro looked at Nezuko's right leg, which was beginning to heal:

"Are you alright, Nezuko?"

Nezuko shook her head.

Nezuko was unharmed, but the monster that resembled the Grim Reaper moved again.

Kokushibo walked slowly, each step seeming to tread on the hearts of everyone present.

Uzui Tengen stood in front of the two, and without turning his head, said calmly, "Leave here quickly."

"But……"

"Don't you understand?! If we stay here, we'll all die!" Uzui Tengen roared. "Didn't you still want to turn your sister back into a human?"

Turning my sister back into a human...

Kokushibo paused in his advance.