"Unknown... whereabouts? Didn't you ever consider that I defected from the Demon Slayer Corps and became a demon?"
Teiichi replied, "Back then, the Demon Slayer Corps had the upper hand in dealing with demons, and you were the strongest member of the Demon Slayer Corps. It's understandable that you didn't expect this!"
Kokushibo nodded slightly, not dwelling on the matter further, and instead asked:
Want to hear the true history?
Teiichi firmly, "I'm all ears."
Kokushibo slightly raised his head, watching the falling snowflakes, seemingly lost in memories.
" Yoriichi and I are twins. I am the older brother and he is the younger brother."
But in that era, twins were considered an ominous sign.
Because twins can lead to disputes over inheritance, which could potentially cause a decline in the family's power.
Yoriichi, due to the Demon Slayer Mark he was born with, appeared very strange to outsiders and was therefore disliked by his family from a young age.
At that time, my father even wanted to kill Yoriichi.
Ultimately, he didn't do it only because his mother strongly objected.
But the condition was that Yoriichi was 10 years old to go to a temple to practice, in order to prevent him from competing with me for the inheritance.
For this reason, I was raised from a young age to be the heir of the family.
Yoriichi, on the Yoriichi, was abandoned and forgotten, left only to stay by his mother's side.
No one has ever seen him smile or speak.
Because of this, I used to feel very sorry for him.
She would secretly go to see him and play.
All of this continued until the year she turned seven.
When I was seven years old, I was practicing swordsmanship in the yard, and Yoriichi secretly stood by and watched me practice.
Do you know how I felt when I found him?
Teiichi asked, "How does it feel?"
"Scary!"
That was a feeling I had never experienced Ueya my father.
Even though we were both children, I felt an unprecedented sense of danger emanating from him.
That was also the day I heard his first words.
'Is my brother's dream to become the strongest samurai in this country?'
Later, he would often come over to watch me practice.
Until one day, my teacher, in a joking manner, gave Yoriichi a bamboo sword and asked Yoriichi to try attacking him.
Then, at the age of seven!
He had never practiced swordsmanship before!
that's all...
Before my eyes...
He instantly knocked out the teacher I had been practicing so hard for but could never even touch!
I found out later.
For ordinary people, it takes a lifetime to pursue the Demon Slayer Mark and the Transparent World.
As for Yoriichi...
It's just something we're born with.
It was also on this day.
Having discovered Yoriichi's talent, his father decided to pass the inheritance to Yoriichi.
I will take on the Yoriichi originally received.
I have nothing to say about this, after all, Yoriichi's talent is indeed stronger than mine.
Just when I was about to accept it...
It was also that evening.
Yoriichi came to my room.
He told me that his mother had died, and that he was leaving home to go to a temple to practice Buddhism.
At that moment.
I heard it.
I could hear the burning sound of jealousy coursing through my entire body.
I began to hate this genius named Yoriichi from the bottom of my heart.
I hate this person who is so talented but doesn't value their talent.
However, no matter what I thought about it, it was all in vain.
Yoriichi left just like that.
More than ten years later, I was attacked by a demon and was saved by Yoriichi.
He has become even stronger.
It's so powerful that I can't quite comprehend it.
At that moment, I saw in Yoriichi...
I witnessed the swordsmanship and skill I had always dreamed of.
Therefore, I abandoned my family and chose to become a Demon Slayer like Yoriichi.
Soon, my strength improved greatly from what it was before, and I also mastered the Demon Slayer Mark.
Unfortunately, I am also unable to use Yoriichi's unique Sun Breathing, and can only create my Moon Breathing.
However, despite this, I am quite satisfied.
Just when I thought I could cultivate step by step until I could reach the same level as Yoriichi,
Swordsmen within the Demon Slayer Corps who awakened their Demon Slayer Mark began to die one after another.
Through a series of speculations and conclusions.
In the end, everyone discovered something in despair.
Demon Slayer Mark is like prematurely mortgaging one's life; no one who develops Demon Slayer Mark later in life lives to be 25.
This news is no different to me than the sun going out.
I realized that I seemed to have no future.
It was at this moment that I encountered Lord Muzan...
The rest was left unsaid, but both people present already knew the outcome.
Teiichi, "However, hundreds of years have passed, and even now, you still haven't reached the level he attained!"
"Yes..." Kokushibo sighed, "But it doesn't matter, I still have unlimited time. I... I can continue to catch up, and one day, I will reach his level!"
At this point, Kokushibo looked at Teiichi and asked, "Are you willing to become a demon?"
Teiichi shook his head, "I'm not interested!"
"Why?" Kokushibo asked, puzzled. "Do you also intend to disappear like this, taking with you the skills you've honed your entire life?"
"What's wrong with that?" Teiichi countered.
"You think it's a pity that your skills, honed over decades, have vanished?" Kokushibo.
"Hmm..." Teiichi pondered for a moment, "It's alright. My skills aren't anything indispensable, so it's fine if I lose them!"
After all, the world has no shortage of geniuses!
Even if not now, I believe that in the future someone will be able to reach or even surpass my level!
The ambiguous words startled Kokushibo, and his vision seemed to blur.
Yoriichi Tsugikuni gazed into the distance, casually remarking:
Instead of worrying about useless things, let things develop naturally.
We brothers aren't really that important.
Ultimately, we are merely two passersby in the long history of humankind...
A baby with talent far surpassing yours or mine may be born somewhere in the world.
Surely, someone will reach our level in the future!
We don't need to worry too much; we just need to wait for the moment when life comes to an end.
At this point, Yoriichi Tsugikuni finally turned his gaze from the distance to his older brother beside him.
Don't you think this is a very pleasant thing?
Brother!
As the memories faded, Kokushibo stared at the Demon Slayer before him, a feeling of disgust rising in his eyes.
They're all the same.
He seemed indifferent to everything.
They had clearly reached the pinnacle of humanity in their time.
Yet he can so casually utter words that are not important to him.
"Ha... so you're all the same kind of people after all!"
Indifferent words came from Kokushibo's mouth.
"Draw your sword!"