In this world.
Yoriichi Tsugikuni.
Is undoubtedly the ceiling of martial prowess.
Even when facing the great boss, Muzan.
He can still slay him with a single blow.
However, Yoriichi Tsugikuni may have been the strongest ever.
But he is definitely not the strongest in theory.
In Shirakawa's view.
In this world, the strongest in theory.
Should be Yoriichi Tsugikuni + Muzan.
One possesses the strongest comprehension, the other, the strongest lifeforce.
Combined, that is the true strongest.
And this, is Shirakawa's plan.
On the path of Breathing Techniques.
Shirakawa has basically reached the peak.
Even if Yoriichi Tsugikuni were to be resurrected.
It would be at Shirakawa's current level.
In this situation, to enhance his strength.
Naturally, Shirakawa set his sights on another path.
That is, Demons!
If he could obtain the Demon King Muzan's kind of long lifespan, powerful physique, and exaggerated recovery ability.
Then, paired with his current "Sun Breathing".
Shirakawa is certain.
He will truly become the theoretically strongest being in this world.
And even surpass Yoriichi Tsugikuni.
To achieve this.
First, there is a prerequisite.
That is, to become a Demon!
..
That's right, Shirakawa's plan is actually very simple.
To transform himself into a Demon.
Then, on the path of Demonhood.
He will also reach the end.
By that time, Shirakawa will have gathered two extraordinary paths in one.
Truly becoming a ceiling-level existence.
However, this plan has a risk.
That is, all Demons are essentially vassals of the Demon King Muzan.
Even their lifespans are subject to the Demon King Muzan's control.
If he becomes a Demon.
He might accidentally turn into the Demon King Muzan's shape.
That would be quite troublesome.
But even so, Shirakawa still decided to take the risk.
He is not brash.
He has his own confidence.
He doesn't believe.
That with his "omniscience",
He could be controlled by the Demon King Muzan.
The Demon King Muzan's bloodline curse.
Could it possibly surpass his "I think therefore I am" power?
If the Demon King Muzan had that ability.
He wouldn't have been slashed to death by Yoriichi Tsugikuni in the first place.
.....
Nightfall.
The moon is dark and the wind is high.
The sky is accompanied by a thin drizzle.
It's a perfect weather for murder and arson.
After preparing, Shirakawa turned to Kasumigaoka Shizuka and said, "I'm going out tonight, I might be back late."
Hearing this, Kasumigaoka Shizuka felt a little anxious.
She had gotten used to Shirakawa accompanying her to sleep.
Today, Shirakawa suddenly wanted to go out.
She was a little uncomfortable.
However, Kasumigaoka Shizuka is very sensible, she didn't make a fuss.
She nodded obediently, indicating that she understood.
Then, pulling Shirakawa's hand who wanted to go out, she said, "It's raining outside, I'll get you an umbrella."
Shirakawa smiled, "No need, my blade is enough."
.....
Leaving the house.
Shirakawa headed towards a nearby town.
In the past few days, Shirakawa had already inquired.
This town has been plagued by demons recently.
And his purpose is precisely for this.
To become a Demon, you have to find a Demon first.
If you can't even find a Demon, what's the point of becoming one.
Relying on his powerful physique.
Shirakawa's speed was very fast.
It only took him ten minutes to reach the town.
Then, he unleashed his perception, entering the Transparent World.
He began to search for the legendary Demon.
"Hmm, found it!"
On the north side of the town, Shirakawa found the so-called Demon.
He immediately rushed over.
Halfway there, Shirakawa could already hear the sounds of fighting and shouting.
Obviously, someone was already fighting those Demons.
When he got closer.
Shirakawa could even see the scene of the fight.
On the edge of the town, on the street.
A girl in black formal wear, with a white feather robe over it.
Was fighting a group of Demons.
Shirakawa immediately recognized the girl's identity.
Insect Hashira, Kocho Shinobu.
.....
In the center of the battlefield.
Facing the siege of several Demons.
Kocho Shinobu was unhurried, like a butterfly dancing in the rain.
Graceful.
But beneath the beauty, there lies endless killing intent.
Two lifeless Demon corpses on the ground.
Are enough to illustrate her danger.
Shirakawa didn't rush to join the fight, instead he watched from the rooftop nearby.
However, after only watching for a short while, Shirakawa had already completely grasped Kocho Shinobu's "Insect Breathing".
There's no way around it, his comprehension is just too godly.
"Aside from the most primordial Sun Breathing."
"Later generations, based on Sun Breathing, have derived many first-rate Breathing Techniques."
"Water, Flame, Rock, Wind, Thunder, the five basic Breathing Techniques."
"There are also many niche Breathing Techniques, such as Moon Breathing, Mist Breathing, Flower Breathing, and so on."
"Although these Breathing Techniques cannot compare to Sun Breathing, they still have their merits in certain aspects."
"Maybe I should collect these Breathing Techniques when I have the chance."
Shirakawa intends to walk a path that no one has ever walked before.
That is, to master various Breathing Techniques, then fuse them into one.
A Breathing Technique that belongs only to him.
At that time, he will truly have reached the end of the path of Breathing Techniques.
Of course, that can wait for later.
Now, Shirakawa has his own business to attend to.
"I've seen enough of the show, now it's my turn."
Thinking this, Shirakawa leaped directly from the rooftop.
He jumped into the battlefield.
The sudden appearance of Shirakawa.
Made Kocho Shinobu and the Demons all pause for a moment.
Then, their reactions were different.
First, Kocho Shinobu.
She initially thought it was a reinforcement.
However, when she saw that Shirakawa was wearing an ordinary katana at his waist.
She immediately realized that he wasn't a member of the Demon Slayer Corps.
Just an ordinary samurai.
But how could an ordinary samurai be a Demon's opponent?
As for the Demons, they laughed.
"Haha, another one who came to die!"
"Let's kill you first, then we'll slowly kill that damn Demon Slayer brat."
With a roar, a Demon charged at Shirakawa.
Facing the charging Demon.
Shirakawa didn't even blink.
Calmly drew his sword, and slashed.