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

From the very beginning, Ms. Yuko approached him believing that he could learn the Breath of the Sun and help defeat Muzan Kibutsuji.

Even though he mastered the Breathing of the Sun, he still couldn't reach the level of prowess that Ms. Yuko had described.

Not to mention Muzan, even the Twelve Demon Moons were fighting him with exceptional difficulty.

The sense of despair intensified after encountering Ms. Yuko's brother.

Even when facing other Upper Moons, Tanjiro doesn't completely lose confidence, even though he knows they are very strong.

But when facing that monster, he couldn't find any chance of victory.

Miss Yuko successfully rescued them.

He felt it was because he hadn't mastered the markings yet, and his body hadn't been trained to its full potential.

So he trained relentlessly and became the second member of the Demon Slayer Corps, after Ms. Yuko, to achieve permanent Demon Slayer Mark status.

……

But it didn't work; the gap was still very obvious.

It's not even the kind of obstacle that can be easily overcome.

It had nothing to do with the strength of breathing techniques or the intensity of the markings. After meeting Tokito-kun, he understood that it was a difference in talent.

Breath of the Sun... He actually preferred to call it the Hinokami Kagura, but he felt that it was inherited from Ms. Yuuko's brother and that he needed to respect Mr. Yoriichi, so he changed his name.

He didn't start learning this breathing technique from Miss Yuko; he only began learning it when he was a teenager.

In fact, he had already learned this breathing technique under his father's guidance when he was young.

He wasn't a genius; he didn't have the same level of talent as others.

but……

Very unwilling.

Perhaps it was out of gratitude for Yuko's kindness, or perhaps he was just a kind-hearted fool who wanted to help others when they faced misfortune.

He didn't want to back down here...

He wanted to help Miss Yuko... to kill Muzan...

……

Tanjiro clenched his teeth, as if grinding his gums until they bled. The taste of rust filled his mouth, as if awakening a bit of his animalistic instincts.

Tanjiro stepped forward stiffly.

Yuko noticed his unusual behavior and instinctively looked at him.

Ok?

When Ikuko saw Tanjiro's distorted face, and the way he stubbornly raised his Nichirin Blade even as his whole body stiffened, her heart tightened.

What did she do to offend Tanjiro?

Why would I still think of rushing up and doing it to her?

Could it be because the usual training is too harsh?

While Yuko was lost in thought, Tanjiro's movements gradually increased from slow, deliberate steps to increasingly faster ones.

Everyone couldn't help but turn their gaze to this.

What is that guy trying to do?

Tanjiro's movements became faster and faster, and he even began to run with stiff steps.

Yu Zi's pupils contracted slightly, and she subconsciously took a half step back.

She couldn't understand.

In her unwavering, pervasive domain, the chill seeped into her entire body through the wound, almost halting the flow of her blood.

That physical condition should have meant he was nearing his limit.

Why can it still run?

She wasn't a doctor, but her exceptional vision allowed her to understand the human body better than Tamayo.

She knew very well that it was absolutely impossible for her to run in that state, and even the slightest movement would be difficult.

Tanjiro's heart began to beat stronger and stronger, and the blood in his meridians seemed to regain its vitality, breaking free from the shackles of the cold.

His speed returned to normal.

Orange-red flames erupted from the Nichirin Blade in his hand, reigniting the darkness.

How is it done?

How exactly does that body move?

Yuko even momentarily lost her senses, subconsciously forgetting that they were still training.

This child came to kill her.

Yuko thought to herself.

She hadn't felt this way in a long time, this feeling of being about to be hacked to pieces.

Holding the Nichirin Blade, Tanjiro's forehead markings became even clearer under the orange-red flames, and his resolute red eyes made his figure gradually overlap with a certain figure in her memory.

Brother...

Yuko unconsciously raised her Nichirin Blade, her mind blank of all other thoughts, except for...

fight back.

I don't want to get chopped up.

She's been slashed many times.

Yuko raised her Nichirin Blade and slashed at Tanjiro from a distance.

……

The image of him raising his Nichirin Blade was deeply etched into Tanjiro's mind, and the world seemed to slow down suddenly.

Tanjiro's eyes widened suddenly.

Saw!

His eyes could see clearly every muscle, blood vessel, and bone in Miss Yuko's body.

That move!!

He swerved and leaped to the right front.

Yuko paused for a moment, but before she could stop, the blood-red sword energy grazed past Tanjiro's body.

It missed.

Was it an accident?

Before Yuko could think further, Tanjiro had already lunged forward, his Nichirin Blade wreathed in flames slashing towards her neck.

Ikuko wasn't that fragile yet. Tanjiro's actions did surprise her, but his body hadn't recovered to its best condition.

With a single slash, Yuko's powerful demonic strike sent Tanjiro flying.

The knife ultimately didn't land on his neck.

Yuko felt a chill run down her spine. Even though he wasn't exactly powerful, Tanjiro's aura just now...

"You seem surprised?" Shinazugawa Sanemi's shrill voice came from behind him once again.

"When?" Yu Zi's pupils contracted slightly. Turning around, she realized that she had been surrounded by people again without even realizing it.

Sanemi Shinazugawa, Obanai Iguro, Mitsuri Kanroji, Giyu Tomioka, Kanae, Kanao, Kyojuro...

All of them...

In that state, did you manage to get close to her?

Yuko noticed their slightly trembling bodies and was utterly shocked.

Because of the chilling air, maintaining normal breathing techniques was already very difficult. The group was panting heavily as they slashed at her with utter honesty.

Yuko was surprised that they could move under those conditions, but under the corrosive chill, their movements became so slow that they were no longer even a threat.

Not wanting to lose, or perhaps not thinking at all.

Yu Zi casually unleashed a wide-range slash, forcing everyone to cough up blood and fly backward.

But it's not over yet.

Suddenly, a glimmer of flame appeared in the corner of my eye, and it grew brighter and brighter.

Behind you!

She quickly turned around and saw Tanjiro raising his Nichirin Blade high and slashing at her again.

?

She had already given Tanjiro to...

Yuko suddenly saw Uzui Tengen behind Tanjiro.

Did you catch him?

Seemingly sensing Yuko's gaze, Uzui Tengen managed a strained smile at her.

Can you feel their passionate bond?

……