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

"I'm back," Yu Ziwei said, tilting her head slightly and looking a little awkward.

Yoriichi stood behind the door, smiling, and said, "It's good that you're back."

"Come inside."

He stepped aside, moving half of his body aside.

"Hmm." Yu Zi responded casually, lowered her head, and walked into the house.

Yuan noticed her absent-mindedness and asked, "What's wrong? Did something go wrong outside?"

Compared to his younger days, the older Yoriichi has gained a more down-to-earth, human quality.

"No...it's just that I haven't been home for a long time, and I'm a little not used to it," Yu Zi casually made up an excuse.

Yoriichi smiled and said, "Are there times when you're not used to it?"

Yuko pursed her lips and looked up at Yuan Yi.

Her fiery red hair now had many white strands, and wrinkles began to appear at the corners of her eyes.

Yoriichi has really gotten old.

Yuko felt a bit suffocated and couldn't talk much with her brother, so she went to sleep feeling down.

The next morning, when Yoriichi arrived at Ikuko's room, he found that she was gone.

This must be the worst decision Yuko ever made.

Perhaps this departure will mean she will never see Yoriichi again.

In ancient times, fifty years old was considered old age, and every year that passed was a pleasant surprise.

Instead of staying by Yoriichi's side to take care of him, she ran away.

……

Many years have passed in the blink of an eye.

Yuko wandered aimlessly across this land.

When she returned to her hometown, she actually ended up here unconsciously.

how many years?

ten years? Or twenty years?

The effects of immortality have made Yuko almost unable to accurately judge time.

Over the years, many changes have taken place in the city. Yuko nervously arrived at that familiar door.

She hesitated, her fingers hovering over the door, unable to knock.

Is Yoriichi still alive?

Yuko began to regret whether she should have run away last time.

Perhaps this place has changed owners.

The moment Yuko withdrew her arm, the door was opened from the inside.

She didn't sense anyone approaching.

Yuko was surprised for a moment and subconsciously looked up.

What appeared before her eyes was an old man with a full head of white hair and a frail appearance.

The old man's face was covered with wrinkles, making him look both old and ugly.

When Yuko saw the familiar wrinkles on the old man's cheeks, tears welled up in her eyes.

Yoriichi smiled gently, but the wrinkles on his face were accentuated, making the smile less than beautiful.

"Welcome back."

Yuko's lips trembled continuously, finally turning into a sound.

"Sorry……"

She shouldn't have left.

……

Inside the room, Yuko lowered her head deeply, unable to face Yoriichi.

Across from her, Yoriichi said gently, "Yuko, you didn't do anything wrong."

"But I haven't been back all these years."

Yoriichi said gently, "I understand your pain."

Yuko subconsciously looked up, her eyes filled with tears.

Realizing her movement, she quickly lowered her head again.

Yoriichi suddenly pulled out a series of envelopes from his pocket and handed them to her.

"What's this?" Yuko asked, taking the item with a puzzled look.

Yoriichi smiled and said, "It's a letter from Tanjiro."

With Yuuko's encouragement, Yoriichi and Tanjiro have maintained frequent contact ever since.

Yuko opened the first letter, which contained greetings from Tanji's family to the brother and sister.

At the same time, they were also concerned about her condition.

She left without saying goodbye that day, which was noticed by the perceptive Tanji.

Tanji comforted her in his letter.

The remaining envelopes were mostly filled with greetings, and also expressed anticipation for their return visit.

Judging from the yellowing of the envelope, it's probably from many years ago.

While Yuko was moved, she also felt guilty.

Yoriichi said softly, "Birth, aging, sickness, and death are the natural order of things in life. We should all face them with equanimity, shouldn't we?"

"But I..."

"Doesn't Yuko still have things to finish?"

Yu Ziwei was stunned for a moment. Defeat Muzan?

Yu Zi nodded emphatically.

Yoriichi smiled and made a rare joke: "Get some rest. I'm going to test your swordsmanship tomorrow morning."

"Good night."

"Goodnight," Yuko murmured.

Is she coming back this time to see her brother off?

The vitality within the body is almost gone, and it has almost reached the end of its life.

I'm afraid he won't live much longer.

Her return was so timely.

Yuko thought to herself with a self-deprecating smile.

After she fell asleep, Yoriichi, in the other room, felt a strange feeling arise inexplicably.

Is it unease?

Or something else?

This strange feeling drove him to leave home and town late at night.

I went to the suburbs alone.

It was only when they arrived in the suburbs that Yoriichi finally understood what that strange feeling in his heart was.

It's the unbreakable blood ties between twins.

"This is impossible... Why are you still alive?"

"A swordsman whose body is marked with spots is destined not to live past the age of twenty-five."

"Why is it that only you... have survived until now..."

To Kokushibo's utter incomprehension, after sixty years, his younger brother, who should have died long ago, reappeared before him like a nightmare.

Tears welled up in Yuan's eyes: "How pitiful, brother..."

He was actually pitied by this creature who was once his younger brother but was now old and frail.

Kokushimona's heart, which had gradually grown cold due to his demonic transformation, was stirred once again.

But... he didn't feel angry at all.

Instead, he was strangely shaken by the other party's address of "brother".

It is an emotion called sadness.

These were among the few emotional words he heard from his unemotional younger brother.

But as long as the other party is still a demon hunter, he must cut the offender in two, even if it is his own brother when he was alive.

Even now, in such a vulnerable state.

Just as Kokushibo was about to draw his sword, Yoriichi drew his Nichirin Blade from his waist first.

The atmosphere suddenly became tense, as Yoriichi's aura pressed down on Kokushibo's shoulder almost materially, like a boulder.

This old and frail creature displayed a posture that was flawless.

"I am coming."

Like a declaration of death, accompanied by that aged voice was Yoriichi's extreme speed.

It was so fast that Kokushibo barely had time to react.

next moment.

Second only to Muzan, the Demon King, he is the strongest of the demons, Upper Moon One.

A spurt of blood gushed from Heishimu's neck.

Why……

Why is it that only you are always special...?

Despite being a striped swordsman, and despite being so thin that he was just skin and bones, the power and speed of his slashes were almost identical to those of his prime.

Those memories that Kokushibo had long forgotten resurfaced in his mind.

Kokushimona's jealousy, which had been dormant for decades, was reignited.

I hate you, I want to kill you!

Kokushibo turned around angrily, his ferocious face resembling that of a demon.

However, Kokushibo also understood that he would not have a chance to dodge the next attack.

Yoriichi's next strike will surely take his own head.

That intense impatience and frustration felt as if it wanted to crush Kokushibo's internal organs into a pulp.

however……

Yoriichi hesitated to strike again, and stood there until his lifespan ended, at which point he passed away.