I Saw Everything About You!

Generally speaking, the beach is very quiet at night, without any messy noise, only the gentle sound of the wind and the beautiful sound of the waves.

It could be located on Yasnaya Island in the East Blue.

The sound of the wind was drowned out by the constant, shrill screams, and the sound of the waves was forced back by the clanging sounds on the beach.

Using the thick mist Muichiro Tokito sometimes disappeared and sometimes appeared, unleashing powerful sword techniques to clash with William's 'Yubashiri'.

Each clash produced a piercing screeching sound and flashes of sparks.

The two men darted and collided rapidly amidst the white mist and steam, exchanging blows fiercely. As time passed, the heavy breathing in the arena became increasingly noticeable.

Giyu Tomioka, watching from a distance, frowned deeply, for the heavy breathing was coming from Muichiro Tokito.

Breathing Technique are a method that allows one to inhale a large amount of oxygen in a short period of time, instantly boosting physical abilities and temporarily granting physical strength comparable to that of a 'demon'.

Although 'Total Concentration - Constant' can greatly extend the duration of the buff, the higher the intensity of the battle, the shorter this duration will be.

The key lies in physical fitness!

The battle has been going on for nearly two hours now, and considering that Muichiro Tokito is still a minor, his stamina must be almost exhausted.

To be honest, the reason he was able to hold out for so long was entirely due to the invisibility effect of the 'Mist Breathing'. If it were his own 'Water Breathing', he would probably have been defeated long ago.

It must be said that both Giyu Tomioka and Muichiro Tokito, who was in the middle of a battle, deeply felt the power of Logia.

As for the Sea Star Person's endurance, they had already witnessed it many times before.

Giyu Tomioka could see that even if he intervened, it would be futile, because neither of them had any means to harm William, and they were also physically exhausted.

But.

Because he was standing at a distance, although he could feel the heat wave coming towards him, he was unaware, under the cool sea breeze, how difficult Muichiro Tokito's true situation was at that moment.

On the field.

Muichiro Tokito was already drenched in sweat, and every breath felt like swallowing flames.

It was like playing hide-and-seek with a 'steam man' in a sweltering sauna.

In order to have enough mist to conceal their figures, they must frequently use sword techniques to create new special effects, since the effects of Breathing Technique have a very short duration.

This caused his body temperature to already reach 38 degrees Celsius, and it was still rising, while his heart was beating so fast it felt like it was about to burst out of his chest.

Muichiro Tokito had considered moving to a different location, where the temperature would be more comfortable.

But how could William not have thought of what he could think of?

The latter, relying on its jet speed and elemental transformation that ignores damage, frequently Muichiro Tokito he tried to escape, limiting the battle area between the two to the center of the arena as much as possible.

William had already figured out the greatest value of these two Otherworld beings.

However, to gain the upper hand in the upcoming cooperation, it is necessary to demonstrate its strength and potential, and then win this battle.

"Huff--Huff--Huff--"

Muichiro Tokito was extremely tired and uncomfortable at the moment. Because of the heat, both the environment and his body were very hot, and his consciousness began to blur.

Although each swing of his sword cleared away the surrounding steam, giving him a brief respite, he could feel the Nichirin Blade in his hand becoming unusually heavy.

This is a sign that your physical strength has reached its limit.

What's most despairing is that no matter what you do, you can't hurt the other person in the slightest.

It has to be said that the ability to transform into elements is sometimes incredibly powerful and invincible, which makes him even more eager for Armament Haki.

At the same time, he made up his mind that if he had the chance to go back alive, he would definitely get a Nichirin Blade mixed with Seastone!

Muichiro Tokito's thoughts had begun to wander.

But his body obeyed his instincts and subconscious, engaging in a high-intensity battle with William with complete abandon, as if he had forgotten his fatigue and pain.

This genius boy, who is only fifteen years old this year and even a year younger than Tanjiro Kamado and the others, suddenly had a new memory appear in his mind.

Is this the older brother?

In the dilapidated thatched hut, the older brother, lying in a pool of blood, was clearly on the verge of death, yet he stared intently at her, uttering each word in a weak voice.

"I know... Muichiro's 'Mu' is infinite 'Mu.' It is 'Mu' that can exert infinite power to protect others."

This one sentence reminded Muichiro Tokito of all the little things he and his Yuichiro brother, Ichiro, had shared.

At the same time.

This also gradually thawed the cold expression that the 'outside world' had maintained, giving it a gentler feel, followed by the appearance of new memories and images.

This time it's... Father?

It must have been something from even earlier than my previous memories. I was much younger then, lying on my father's lap, and the surroundings were blurry and white.

Her mother and brother were also smiling as they surrounded her.

"Dad, Mom"

"Yes, we all saw it. You worked very hard, Muichiro."

The father stroked his face and smiled gently, "Muichiro, you must remember, humans are creatures who can unleash extraordinary power for those other than themselves~"

"No matter what, you must always strive to become strong with the intention of protecting others, remember that?"

"I've got it!"

At this moment, William was surprised to find that Muichiro Tokito's face, and that light blue cloud patterns had appeared on his left forehead and right cheek.

"This is."

The next second, Muichiro Tokito's previously unfocused eyes suddenly sharpened, and he moved like a blur, rushing out of the steam-covered area.

Its speed was so great that William had no time to intercept it, and it plunged headfirst into the shimmering, icy seawater, forcing William to abandon the idea of giving chase.

That is...

Giyu Tomioka, standing some distance away, was also surprised; Muichiro Tokito too fast for him to see clearly.

[Boom!]

Suddenly, a towering column of waves erupted from the sea, and within it seemed to be a blurry human figure.

"Water Breathing, Sixth Form, Twisting Whirlpool!"

Muichiro Tokito actually used the "Water Breathing" sword technique in the sea, and even used the Berserk of "Water Breathing" to create a large number of waves in the sea.

It transformed into a 'Suiryu' over ten meters high, with the Uzumaki Clan water droplets comparable to sharp blades, which surged towards William's location.

In fact, every 'pillar' has practiced 'Water Breathing' to some extent.

Because this is the most suitable Breathing Technique for beginners, the Demon Slayer Corps has never lacked a 'Water Hashira' since the Breathing Technique appeared.

Muichiro Tokito had figured it out: if enough seawater could submerge the Devil Fruit user, it would temporarily weaken them, giving him the opportunity to deliver a fatal blow!

However, his stamina was only enough to sustain this one attack.

Opposite.

Faced with such a massive 'sea escape', William's first thought was not to confront it head-on, but to use steam jets to evade it.

But just as he was moving at high speed to the upper right, he was shocked to find that the Suiryu had anticipated his movements and, as if by coincidence, crashed into him.

At the same time, Muichiro Tokito's voice gently rang in William's ear, accompanied by the moonlight.

"It's no use, I've already 'seen' everything about you."

For those of you who have followed this far, besides urging for more updates, do you have any suggestions for the plot direction, or any major flaws you hope I can avoid?