Transparent World

Watching Kujo Tachibana, who remained silent and completely unaffected by his words.

Rokuro suddenly felt a sense of boredom; he no longer wished to continue playing with this swordsman of unknown origin.

"Human boy, today I will let you know just how fragile the body of the human species truly is!"

No sooner had Rokuro finished speaking than the exposed skin on his body turned black at a speed visible to the naked eye.

In Kujo Tachibana's perception, the vast majority of the lines of opportunity he had previously seen between himself and Rokuro snapped in an instant!

Having completed his "transformation," Rokuro wasted no more time.

With a heavy stomp of his foot against the ground, a deafening BOOM echoed out.

Leaving a crater where he had stood, Rokuro shot toward Kujo Tachibana like a sharp arrow!

As soon as he entered his attack range, Rokuro raised his fist and hammered it toward Kujo Tachibana's forehead like a falling thunderbolt.

Watching the black fist flying toward his face.

Kujo Tachibana's pupils couldn't help but constrict!

So fast!

Rokuro's speed was at least thirty percent faster than before!

Relying on the perception of Sword Heart Clarity, Kujo Tachibana narrowly dodged the strike by shifting his body just in time.

The large tree behind Kujo Tachibana was shattered right through the middle by a single punch from Rokuro.

Facing Rokuro, who had suddenly powered up and activated "Armament Haki," Kujo Tachibana could not launch a counterattack as he had before.

He had no choice but to quickly put some distance between them!

Kujo Tachibana could see Rokuro's openings, but his body could not support the movements required to exploit them.

He was forced to passively use the terrain of the forest to evade Rokuro's attacks.

Watching Rokuro kick a tree as thick as a water barrel in half, Kujo Tachibana couldn't help but swallow hard.

If I take a hit like that, I'll die, won't I?

Just then, Fujiwara Naoto, a Mizunoto-ranked member of the Demon Slayer Corps carrying two Nichirin Sword blades, arrived at the battlefield.

Fujiwara Naoto raised the Nichirin Sword in his hand and shouted toward Kujo Tachibana, who was struggling in the fray:

"Swordsman! That blade of yours cannot kill this demon."

"Only by using this sword to sever his neck can you kill him!"

However, upon seeing Fujiwara Naoto arrive with the Nichirin Sword, Kujo Tachibana did not show a hint of joy.

He kept his eyes locked firmly on Rokuro, not daring to spare a single thought elsewhere.

Of course, Kujo Tachibana knew that only a Nichirin Sword could kill a demon!

But the problem was that he currently lacked the strength to sever Rokuro's neck!

Only by using the technique he had used to shatter boulders back home would it be possible!

However, the conditions for using that technique were extremely harsh, requiring one hundred percent focus and concentration!

A weapon is an extension of one's limbs; how could Kujo Tachibana unleash such a strike with a strange, unfamiliar blade?

Therefore, in Kujo Tachibana's eyes, Fujiwara Naoto, who had arrived with the Nichirin Sword to provide support, might actually be a burden.

Unless he chose to stand by and watch him die...

"Heh, are you thinking of going to get that sword?" Rokuro said to Kujo Tachibana with a playful tone.

Kujo Tachibana let go of all his senses, staring dead at Rokuro without saying a word.

Just then, Kujo Tachibana suddenly sensed a change in the muscles of Rokuro's left leg...

He's going to kill that Demon Slayer Corps member!

Thinking of this, Kujo Tachibana stopped worrying about the gap in speed and power between himself and Rokuro.

For the first time, Kujo Tachibana launched an active attack, swinging his blade toward the tendon behind Rokuro's left knee!

As long as I cut it, there should be enough time for this Demon Slayer Corps member to escape!

But just then, Rokuro, who had already turned half his body, rapidly adjusted his center of gravity back.

He kicked out heavily toward Kujo Tachibana with his right foot!

Although Kujo Tachibana could perceive the attack, his body could not adjust as quickly as Rokuro's.

He barely managed to brace his sword against his ribs to help distribute the force of the kick.

Even so, Kujo Tachibana was sent flying like a cannonball, kicked ruthlessly by Rokuro.

The moment he landed, Kujo Tachibana couldn't help but cough up a mouthful of blood.

Using his sword to prop himself up, Kujo Tachibana stood up tenaciously, feeling the damage inside his body, and couldn't help but reveal a wry smile.

"I was still too careless!"

Two of Kujo Tachibana's right ribs were broken, and he could no longer exert the force needed to unleash his most powerful strike.

Yet at this critical juncture, Kujo Tachibana suddenly recalled a plot point from when he watched the Demon Slayer manga in his past life.

It was the story of the protagonist Tanjiro Kamado's father, Tanjuro.

At that time, Tanjuro was already in a terminal state of illness.

Yet, he was still able to drag that sickly body of his and, armed with nothing but an axe, leap into the air and decapitate a giant bear in a single strike.

That giant bear stood nearly three meters tall and had previously devoured six people.

Why was Tanjuro able to completely transcend the limitations of his illness?

How could he perform such an astonishing feat with a dying, bedridden body?

It was only because Tanjuro had grasped the supreme realm—the Transparent World.

He could utilize his keen senses to control the movement of every blood vessel in his body.

Just as humans close their eyes to hear sounds more clearly, the same principle applies when launching an attack: seal off all unnecessary parts and leave only what is essential.

Eventually, one reaches a state where they can open and close the blood vessels and muscles within their body at will.

When that happens, a transparent world will reveal itself before your eyes!

This ability allows one to see through a living being's body and identify its weaknesses.

At the same time, because sensory perception is accelerated, the enemy's movements appear to slow down.

(This is the explanation of the Transparent World from the manga.)

Recalling the explanation of the Transparent World's abilities from the manga, Kujo Tachibana's expression couldn't help but turn complicated.

Doesn't it sound incredibly familiar?

Seeing through biological structures, spotting weaknesses, accelerated perception!

Isn't this just the Sword Heart Clarity recorded in our family's archives!

However, there are still subtle differences between Sword Heart Clarity and the Transparent World, as well as in the methods used to activate them.

The Kujo family's method for activating Sword Heart Clarity involves constant training to strengthen the five senses, thereby generating a sixth sense to reach the realm of Sword Heart Clarity.

This sixth sense is not limited to observing living beings; it also possesses a certain degree of observational capability toward inanimate objects.

Kujo Tachibana felt that reaching this level required a relatively high baseline for the five senses, or perhaps, a high level of spiritual talent.

Perhaps this was an invisible cheat granted by his reincarnation.

Regarding the strengthening of senses—or rather, the spirit—Kujo Tachibana felt that the Transparent World was likely not as strong as his sixth sense, Sword Heart Clarity.

The Transparent World realm in the manga is achieved by those with naturally powerful five senses who use those senses to control their blood vessels and muscles.

Once you can control your body with one hundred percent perfection, you eventually reach the state of opening and closing your internal blood vessels and muscles at will.

At that point, a transparent world will reveal itself before your eyes!

This is the Transparent World.

If one were to activate the Transparent World following the process in the manga, their explosive power and endurance would certainly see a massive increase.

After all, this path is fundamentally about studying body control to sublimate one's spiritual senses.

And once the Transparent World is activated, every attack you launch will mobilize the participation of your entire body's muscles and blood vessels.

There will be no wasted movements, not a single shred of unnecessary expenditure.

At this moment, Kujo Tachibana was caught between laughter and tears, wishing he could give himself a hard slap!

Why am I choosing? Why can't I have both!

If others can control their muscles and blood vessels just by the strength of their five senses, he has already cultivated a sixth sense!

Given the current strength of his senses, controlling his muscles and blood vessels shouldn't be a particularly difficult task.

It was just that he had never thought to attempt it in this direction before.

Rokuro walked slowly toward Kujo Tachibana with the air of a victor.

"Is the human body fragile?"

"For me, injuries like these would heal in mere seconds."

"Don't worry, I won't kill you right away; we have plenty of time."

"I will let you watch as I eat you, bit by bit. Hmm? Should I start with your hands, or your feet?"

Kujo Tachibana ignored Rokuro's words, simply adjusting his breathing to maintain his sword stance, his mind entirely focused on the work within his body.

"You really are a bastard!" Just then, Fujiwara Naoto's roar, filled with fury, echoed through the forest.

"You damn demon, what do you take me for! I am a member of the Demon Slayer Corps!"

"As long as I, Fujiwara Naoto, am not dead! I will absolutely, absolutely not allow you to eat people in front of me!"

Having shouted these final words, Fujiwara Naoto could no longer hold back his tears.