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The Line Between Humanity and Savagery

Summary:

To Akaza, the rest were little more than dust—insignificant, fragile creatures whose lives were fleeting at best. The weak, the frail, those who clung to the illusion of strength—they were nothing. He had slaughtered them by the hundreds, their names fading into the abyss of forgetfulness, like whispers lost in a storm. To him, they were inconsequential, mere obstacles to be wiped away in the pursuit of true power.

But the Hashira? They were a different breed entirely.

The Hashira were the ones who commanded his attention. They were the only ones worthy of his respect, the ones who had the strength, the skill, the tenacity to stand as equals—if not yet in power, then in the potential to become something far greater. They alone had the resolve to test the limits of his own might, to push him to the very edge of his existence. To Akaza, they were the only ones who had the ability to transcend the frailties of the human condition and rise above their mortal chains. The rest? They were nothing. The Hashira were everything.

Chapter 1: The Strength of a Hashira

Chapter Text

Akaza rarely remembered human names. 

To him, they were nothing more than transient markers, mere possessions of insignificant beings clinging to their fleeting existence. A name was an ephemeral thing—a hollow symbol of a person’s transient status in a world that would long outlast them. Humans were small, frail creatures, incapable of grasping the greatness that demons achieved. They were nothing but fleeting, delicate whispers in the passage of time, their lives as brittle as the paper their names were written upon.

To Akaza, humans were weak. Pathetic. Powerless.

Their names were inconsequential—a thin, fleeting imprint on the grand canvas of history, a history in which demons like him would endure while they turned to dust. Humans could never rise above their fragile nature; they were doomed to be crushed beneath the weight of their own limitations.

But strength… strength was another matter.

The Hashira.

Akaza remembered them. The strongest of the demon slayers—their names etched in his mind, not because of their status as humans, but because they alone stood as worthy adversaries. In a lifetime of carnage, he had obliterated countless men, swordsmen with pathetic skill, humans whose names were forgotten the moment their blood stained the earth. But the strong, the ones who pushed him to his limits, those were the ones he could not forget.

The Hashira.

He offered them a deal—a chance, a temptation—one that no one else could ever hope to receive.

“Become a demon, Water Hashira.”

These were the ones who could carve through the Lower Ranks of the Kizuki with ease. The only humans who could stand tall against the Upper Moons and survive, the ones who struck fear into the hearts of demons wherever they went. Their strength was undeniable, and it was that strength that caught Akaza’s attention. The Hashira alone were capable of challenging his power, the only ones who might provide the kind of battle that could sate his bloodlust.

To Akaza, the rest were little more than dust—insignificant, fragile creatures whose lives were fleeting at best. The weak, the frail, those who clung to the illusion of strength—they were nothing. He had slaughtered them by the hundreds, their names fading into the abyss of forgetfulness, like whispers lost in a storm. To him, they were inconsequential, mere obstacles to be wiped away in the pursuit of true power.

But the Hashira? They were a different breed entirely.

The Hashira were the ones who commanded his attention. They were the only ones worthy of his respect, the ones who had the strength, the skill, the tenacity to stand as equals—if not yet in power, then in the potential to become something far greater. They alone had the resolve to test the limits of his own might, to push him to the very edge of his existence. To Akaza, they were the only ones who had the ability to transcend the frailties of the human condition and rise above their mortal chains. The rest? They were nothing. The Hashira were everything .

His gaze fell upon one of the warriors, and a surge of disappointment rippled through him. The man’s movements were slow, almost lethargic to his eyes, his form weak and unrefined like a blade that had never been properly tempered. His face was ashen, devoid of any spark—no fire, no fury, no passion for the battle at hand. The warrior stood there, like a hollow shell, easily dwarfed by the power Akaza exuded. He was nothing more than another fragile human, trembling under the weight of his own limitations, destined to crumble the moment they clashed.

Weak.

Akaza’s lip curled in revulsion as he watched the man crouch beside a fallen slayer, exchanging hushed words with the boy who lay motionless on the ground. The conversation was a murmur, too far to catch, but it made little difference. The very sight of this man—a warrior without spirit, devoid of the tenacity needed to survive—was enough to ignite a cold fury in Akaza’s chest.

Pathetic.

But then, as if stirred by a whisper of something darker, a flicker of curiosity stirred within him. It was subtle at first, a faint pulse of interest that sparked in the pit of his stomach.

Maybe… maybe it wouldn't hurt to indulge myself, to test them. To see if any of them are truly worthy of the battle I crave.

A slow grin spread across Akaza’s face, his eyes narrowing as the anticipation began to build. He couldn't resist the pull of the challenge, the chaos that beckoned. He thrived on it. The mere thought of a real fight, of something worth his time, sent a rush of adrenaline coursing through him.

If these warriors have any strength at all, perhaps they'll give me the fight I seek. After all, even the weakest of humans can surprise you when backed into a corner.

With a final, predatory glance at the men before him, Akaza’s grin grew sharper, more feral. The temptation was too great to ignore.

Let’s see if any of them have the strength to make this interesting.

Akaza shot forward like a bolt from the heavens, his demonic strength making the distance between him and the pair seem nonexistent. His bare feet slammed down onto the jagged, rocky ground, the sound echoing through the still night, breaking the quiet with a savage rhythm. His pink pearls, wrapped tightly around his ankles, jingled faintly in response to the force of his motion, the sound almost mocking in its softness compared to the brutality of his arrival. Dust exploded around him as he came to a stop mere paces away from the two slayers, the glow of the moon casting eerie shadows on his form.

He crouched low, effortlessly planting one hand on his left thigh, the other bracing against the ground as he surveyed his prey. His eyes gleamed with amusement as he took in the sight of them. The boy on the ground—tanned, disheveled—looked up in shock and horror, his face contorting as he processed the demon before him. The other simply straightened his back, taller and composed, simply turned his head, his pale face blank, his expression cold and detached as he met Akaza’s gaze.

A smirk crept across Akaza's lips.

Without warning, he surged forward again, a blur of speed and darkness, his fist coiling into a deadly weapon. The air seemed to crackle around him as his right hand shot out, aimed straight for the tanned boy’s face. But before his attack could land, the older of the two warriors, far more composed than his companion, moved with unexpected precision. His blade shot up in one smooth motion, his speed defying Akaza’s expectations as he parried the incoming strike with a fluidity that surprised the demon.

Interesting… A Hashira, perhaps? A Hashira with a weak Fighting Spirit?

Akaza’s eyes narrowed, intrigued. The man’s deep blue gaze bore into him, unwavering as Akaza, with a fluid twist of his body, backflipped to avoid the sword’s deadly arc. The katana shimmered in the moonlight, its aquamarine hue catching the light as it whistled past him. The older boy blinked in shock, clearly caught off guard by Akaza’s unnatural speed, but his expression remained cool, unreadable.

But Akaza’s attention was momentarily diverted when a sharp pain seared down his right arm. The blade had managed to find its mark, slicing deeply through his skin. The crimson flow of blood stained the earth beneath him, its scent sharp and intoxicating.

An easy fix.

With a casual flick of his wrist, the wound began to heal. Muscles and skin knit back together effortlessly, the blood stopping as if time itself had reversed. Akaza flexed his fingers, now whole once more, and without missing a beat, brought his hand to his mouth. His pink tongue darted out, licking the blood that still clung to his fingers, savoring the taste as his eyes never left the pair before him.

“Nice katana…” he purred, his voice laced with dark amusement.

The older swordsman didn’t respond, his left hand hovering protectively over his fallen comrade, the sword still gripped tightly in his right. He studied Akaza, his blue eyes unwavering, cold as ice.

“Are you injured?” The man’s voice was steady, controlled, though there was an underlying tension in his posture. He cast a quick glance at his younger companion, still lying on the ground, wide-eyed and disoriented.

“N-no!” the tanned boy stammered, his voice breaking with shock as his gaze flickered between the older swordsman and Akaza. The deep, dark red of his eyes seemed to glow eerily in the moonlight, a vague feeling of familiarity and the clear feeling of disgust grinding at his guts. “Are you?”

Akaza's grin stretched wider, a predator sensing its prey. The thrill of battle surged through him, intoxicating and relentless. The two before him were weak, of course, but there was something about them—something that sparked his curiosity. They weren’t the formidable warriors he longed for, but perhaps they could still provide the kind of fight he craved.

“Ignoring me?” Akaza mused aloud, his voice dripping with mock curiosity, his gaze fixed sharply on the swordsman before him. He lowered into a crouch, a low, predatory battle stance that hinted at his unrestrained power. His yellow eyes gleamed in the moonlight, a feral hunger igniting within them. “Don’t waste your time worrying about each other,” he warned with a cruel smile. “Both of you will need every ounce of focus if you hope to survive facing Upper Rank Three!”

In an instant, Akaza exploded forward, his body a blur of motion. His pulse quickened with eagerness as he aimed both fists toward the two swordsmen, the sheer power of his strike sending ripples through the air. The taller swordsman had reacted to his previous attack with surprising speed—perhaps it had been mere luck, a fluke—but if it wasn’t, if he truly had found someone worthy, then Akaza would savor this fight all the more. If it was luck, though, it was irrelevant; these two were weaklings, and Akaza would dispatch them with ease, as only a demon could.

The pale swordsman—his choppy hair black as a moonless night, tied back into a low ponytail—moved with shocking swiftness. With a flick of his blade, he intercepted Akaza’s fists with a fluid precision that suggested years of discipline. His face, as emotionless as the dead, betrayed nothing, but his eyes locked onto Akaza’s with cold intensity. The blade sliced cleanly through the air, severing Akaza’s fists with effortless grace.

“Water Breathing, huh?” Akaza muttered, a flicker of genuine intrigue crossing his features as he recognized the fluid, graceful style. The swordsman’s strikes were a dance, as flexible and unpredictable as water itself. Akaza’s lips curled into a feral grin, and a low, pleased laugh escaped his throat. “Are you the Water Hashira?” he asked, his voice rising with excitement. “Excellent! It’s been fifty years since I last encountered one!”

Akaza leapt backward, his muscles coiling like a spring, but the swordsman was already in pursuit. His haori, an intricate design with one side a muted carmine and the other bearing a geometric hexagonal pattern in shades of yellow and dark green, fluttered in the wind as he closed the distance. The swordsman’s katana flashed, aiming straight for Akaza’s neck, but with a swift, brutal motion, Akaza parried the attack with his fists, smashing the blade aside with his knuckles.

The force of the blow caught him off guard—the swordsman’s speed far outstripped his previous opponents. Akaza, momentarily stunned, was impressed. This was no mere demon slayer; this man was a true challenge.

No words came from the swordsman—only the sound of his blade slicing the air as Akaza’s grin remained fixed. He met the man’s strikes head-on, exchanging blows, each impact like a shockwave rippling through the air. The ebb and flow of their battle began to form, a silent dance of strength, agility, and precision. Akaza’s smile widened.

“Now that I think about it,” Akaza said casually as the swordsman’s blade descended in a smooth arc aimed at his left forearm, only to be narrowly dodged. Akaza twisted backward with inhuman speed, his fist pulling back for a feint, then launching toward the swordsman’s right side. The man parried with ease, his katana twisting in a deadly arc that pierced Akaza’s right arm, nearly reaching his elbow before dissolving into a rapid series of strikes. “The last Water Hashira I fought was quiet too…”

Still no response.

The swordsman moved with a grace that thrilled Akaza, each maneuver more elegant than the last. Akaza felt the urge to push himself harder, to stop relying on his sheer demonic strength and truly test this man’s resolve. He feinted another punch to the swordsman’s right side, though the attack was never meant to land, testing the man’s defense. Another swift strike followed to the swordsman’s midsection, but the man leapt back, avoiding the blow with remarkable agility. Akaza’s fists connected only with air as the swordsman danced just out of reach.

“You’re stronger than I thought…” Akaza murmured, his voice a low rumble of approval.

His feet slammed into the ground as he dropped into a battle stance, his knees bent in a half-crouch, his right arm extended with a clenched fist, while his left arm was open, palm facing forward. The ground beneath him seemed to hum with the force of his power, radiating an intense energy.

Perhaps the moment had arrived to cast aside any further distractions.

With a sudden surge of raw, primal energy, Akaza’s demonic aura flared to life, and his body tensed with lethal precision.

Technique Development…

He could feel it—the pulse of his blood, the rhythm of his heartbeat, the rush of anticipation that surged through him. The swordsman closed the distance again, moving with the fluid grace of a master–a Hashira –as he raised his blade, preparing to strike. Akaza’s senses sharpened, and the world around him seemed to slow, the air thick with the weight of impending collision.

Total Concentration: Water Breathing…

The swordsman’s movements were like a flowing river—effortless, serene, yet capable of sweeping away anything in its path. With a burst of speed, he struck, the blade slicing through the air with precision and power, invoking the Third Form: Flowing Dance .

The clash was overwhelming. Akaza’s relentless barrage of blows, powered by his Blood Demon Art and monstrous strength, met the swordsman’s elegant counterattacks in a storm of fury and finesse. Akaza’s fists pummeled the air with the force of a thunderclap, each strike aimed at the man’s vitals, but the swordsman danced around them—his every move a thing of beauty, his sapphire blade an extension of his own will.

And yet—Akaza had not landed a single hit. Not one. Each of his blows, aimed with surgical precision at the man’s most vulnerable points, was expertly deflected or narrowly dodged. The swordsman was not just quick—he was a master, his movements a symphony of grace and deadly precision. Akaza had fought countless warriors in his time, but none like this.

The exchange continued, and Akaza’s grin spread wider, his teeth bared in a rare expression of genuine thrill. This was no ordinary fight—this was something different. There was something about the swordsman, something that made him stand apart. The beauty of his swordwork, the effortless flow of his technique, the raw power hidden beneath his control—it was all so... mesmerizing.

Akaza’s fist collided with the edge of the blade, the impact sending a sharp jolt through his arm. The swordsman had braced himself perfectly, absorbing the force without flinching. The blade didn’t shatter, but instead pushed the man back, the metallic edge skimming painfully across Akaza’s knuckles. Yet, the pain only fueled his determination. He followed up immediately, launching another punch toward the swordsman’s exposed left side, but the man twisted away, dodging with a fluidity that seemed impossible.

For a moment, Akaza was taken aback by the man's speed and skill. The swordsman wasn’t just blocking his attacks—he was anticipating them, countering them with an almost prophetic sense of timing. Akaza blinked, and a sly grin spread across his face, tattoos rippling on his skin.

This man... this one ... was worthy.

Every strike Akaza delivered, every powerful move, had been countered. His Destructive Death: Compass Needle: Disorder was blocked or parried with the swordsman’s mastery of Total Concentration: Water Breathing , and Akaza’s fists only managed to graze the man’s oddly patterned haori in a series of near-miss strikes. But there was something more to it now. This fight had become something Akaza hadn’t anticipated—an exhilarating challenge. His heart raced with each passing moment, a renewed energy filling his every movement.

This is it… Akaza thought, his eyes alight with respect and resolve. He is the one .

Without warning, Akaza leapt backward, his muscles coiling with animalistic precision. The swordsman responded immediately, his sword lashing forward in a devastating arc aimed directly at Akaza’s throat. The attack was lightning-fast, but Akaza anticipated it, leaping just out of reach. The man’s sword cleaved the air in a furious strike, leaving shattered fragments of earth and stone in its wake.

"Become a demon, Water Hashira," Akaza growled, his voice a blend of challenge, respect, and something darker—an underlying sorrow. He couldn’t help but admire the swordsman’s technique, the purity of his form, the strength in every movement. To Akaza, such brilliance deserved preservation. The thought of it fading with time, with the inevitable toll of aging, caused an ache in his chest.

The swordsman’s response was immediate, calm, and resolute. “No.”

The refusal came swiftly, the voice steady with a certainty that Akaza had long since come to recognize. It was the same pride, the same inflexibility that every Hashira held, and Akaza felt a sense of regret wash over him. The refusal wasn’t born of arrogance—he could see it was rooted in something else, something Akaza understood all too well: the swordsman’s strength, his beliefs, and his fear of losing his humanity.

But Akaza saw more than that. This man is worthy. There was no question in his mind. He had fought countless warriors, but none with such grace, such mastery. Every move the swordsman made was the culmination of years, decades, perhaps even a lifetime of hard-earned technique. The beauty of the swordplay was undeniable—this man had refined his art to perfection.

And yet, time would betray him. Akaza could already see it—how the years would erode the sharpness of those skills, how the power would begin to fade. It pained him, a raw, gnawing pain to watch such brilliance inevitably slip away with age. He had seen it before, many times: warriors blessed with extraordinary gifts, their strength diminishing as they grew older. Akaza couldn’t bear the thought of such magnificence being lost.

He wasn’t ready to give up just yet.

This man is too worthy to let slip away.

Akaza clenched his fists, feeling the blood pulse beneath his skin, his demonic energy swelling as the truth gnawed at him. He wasn’t just fighting this man because of the thrill—no, there was more to it. He had seen what happened to those with unmatched skill when time was allowed to run its course. It hurt him to think that this swordsman might someday fade, his strength whittled away by age. He couldn’t let that happen.

He would offer again. And again. Until the swordsman saw the gift Akaza was offering: immortality, the preservation of his perfect technique, the continuation of his brilliance beyond the decay of time.

Akaza’s eyes darkened with determination. This time, he wouldn’t relent. He would make him see. Make him understand. 

I will preserve his strength—his magnificence—by making him the one.

“I see…” Akaza pretended to muse, breaking his exhilarated expression with one of feigned deep thought as he studied him intently, taking in every detail, from the sharpness in his gaze to the stillness of his form. The swordsman before him was a striking figure—tall, with a lean yet muscular frame, the kind of physique that spoke of rigorous training and discipline. His pale complexion stood out starkly against the backdrop of the night, his presence quiet but undeniably powerful.

There was an intensity in his eyes—a deep, unsettling blue that seemed almost unnatural, like the quiet before a storm. The man’s irises were a brilliant lapis blue, so vibrant and clear that they felt almost otherworldly. When his gaze sharpened, the color of his eyes seemed to darken, his pupils becoming almost void-like, an empty abyss of navy blue that made Akaza’s skin prickle with a strange awareness. Those eyes—sharp, piercing—seemed to miss nothing. It was as if they could see through to the very core of him, and yet, they were distant, cold, as if he stood a world apart from everything around him. A stoic calm, a man resigned to his purpose, the weight of countless battles and sacrifices reflected in his silent expression.

His raven-black hair was another striking feature—choppy and uneven, falling in jagged, layered strands around his face. The bangs, falling messily over his eyes, gave him an air of unpredictability, like a storm just waiting to break free. His low ponytail at the nape of his neck did little to tame the disarray, only adding to the sense of wildness beneath his composed exterior.

Akaza’s gaze moved down, noting the black Demon Slayer uniform he wore—a standard set of attire, but one that fit this man like a second skin, perfectly molded to his lean frame. The charcoal hue of the jacket matched his quiet, deadly aura, its golden buttons catching the faint light with every movement. The white belt cinched at his waist, while the tattsuke hakama pants fell with fluidity, wrapped tightly by white kyahan, and the zōri beneath him were nothing short of perfect—dark blue straps binding his feet in quiet, subtle strength.

But it was the haori that truly caught Akaza’s attention—the way it split into two halves, so beautifully contrasting yet so perfectly balanced. The right side was a bold carmine red, a color that screamed power, while the left side was far more intricate, adorned with geometric rhombi patterns in rich greens, oranges, and yellows—each line and shape reflecting a different facet of the man’s strength. The haori, like him, was a combination of two opposing elements: stark, undeniable force and quiet, calculated beauty.

Akaza couldn’t help but feel drawn to him, to the quiet intensity that radiated from the swordsman’s every movement. This was no ordinary man. This was a warrior whose skill had been honed to perfection, someone who wore his quiet strength like a mantle, never faltering, never hesitating. There was beauty in his technique, yes, but more than that, there was something haunting about him. The way his eyes could pierce through the air, the way his presence commanded respect without uttering a single word—everything about this swordsman spoke of a life devoted entirely to his craft.

And Akaza recognized that. This man, this one, was worthy. Worthy of Akaza’s attention, worthy of the strength he offered. His soul burned with the desire to preserve such magnificence, to ensure that this warrior’s brilliance would never fade, would never be allowed to wither with the inevitable passage of time.

“Why not?” Akaza’s voice dripped with intrigue, each syllable drawn out as if savoring the very essence of the question. His eyes glinted with something predatory, sharp and unyielding. “You’re a Hashira, correct? It’s clear to me. It must be—after all, I’ve never encountered anyone with your kind of ability who wasn’t a Hashira. Your strength... your skill—there’s no mistaking it.”

Akaza’s smile curved wider, his teeth gleaming in the dim light as he leaned in closer, as if to savor the moment. He didn’t rush, letting every word hang heavy between them. His gaze locked onto the swordsman’s stoic face, watching with unblinking focus as the faintest twitch of a muscle near his jaw betrayed a moment of emotion. A slip. Akaza’s grin grew ever more dangerous.

“In fact,” he continued, voice smooth and almost coaxing now, “you may be the most skilled Water Hashira I’ve ever encountered. The most refined. The most... perfect. Your technique is breathtaking, your form is unshakable. But…”

The word rolled off his tongue like a slow, deliberate threat. But... It was the pause that mattered. It was the promise of something more, something inevitable, something beyond the reach of even the strongest of warriors.

Akaza’s eyes glinted with cold certainty as he observed the subtle tightening of the swordsman’s lips, the way his body shifted just the slightest bit. He could see it—the man’s awareness, his recognition of the truth Akaza spoke, the one that hovered over them both like a shadow. And it delighted him.

“Time,” Akaza said, his voice now low, almost a murmur, but with a hard edge like a blade at the throat. “Time will take all that skill away. All that power. That perfect, beautiful form of yours will wither. You won’t get any stronger. You’ll never get better. Not while the years creep up on you like an inevitable storm, eroding everything you’ve worked for. Every fight, every battle—each one will cost you a little more. And soon, your strength... will start to fade. Can you feel it?”

He paused again, letting the weight of the words settle in the air like a poison. His eyes didn’t leave the swordsman’s, watching him closely, intently—knowing full well the truth of what he said would sting, would hit deeper than any physical strike.

Akaza tilted his head slightly, his grin shifting into something far more predatory, almost tender. “Surely, you want more. You want power that doesn’t fade. Strength that doesn’t waver with time. I can give it to you.” His voice was velvet, smooth and insistent, as if offering a gift no one else could. “I can preserve you, make you eternal. Your skill, your form, your life—all of it will remain as it is now, or even grow sharper. Your power will never diminish. You’ll always be at your peak, forever.”

Akaza’s hands clenched at his sides, his demonic aura flaring with restless energy as he took a step closer, closing the distance. His eyes, burning with the intensity of his belief, bore into the swordsman’s unyielding resolve. “Why throw all that away? All that skill, that magnificence—just to let time take it from you? Why age and fade when you can have eternity, when you can remain a force of nature?”

The air around them seemed to vibrate with the force of Akaza’s words, as though the very world was holding its breath, waiting for the swordsman’s response. Akaza’s grin deepened, hunger and admiration both reflected in his eyes.

“You are worthy. More than anyone I’ve seen in a long time. Don't waste that. Don’t let time rob you of what you've earned. Become a demon. I’ll make you stronger than you’ve ever dreamed."

The swordsman stood still, his eyes fixed on Akaza with the same cold, unwavering calm he had always carried into battle. His expression remained stoic, the faintest hint of any inner struggle masked by the steely resolve that defined him. He must’ve heard Akaza’s words, felt the weight of them in the air between them, but he did not flinch.

"You speak of strength," he said quietly, his voice betraying nothing, no emotion at Akaza’s words. His lapis blue eyes, sharp and steady, never wavered. “But I’ve seen enough. Strength is not measured by immortality or unending power. It’s found in how you live, in how you face death knowing that each day might be your last.”

“If you truly understand strength, then you would know that real strength isn’t eternal,” he continued, his gaze narrowing slightly. “I don’t want to live forever, and I don’t need power that doesn't come with the burden of mortality. If that means my strength fades with time, then so be it. It's the price I’ll pay.”

“I don’t need your offer,” he said flatly, his eyes unwavering, not a hint of doubt or hesitation in his voice. “I have my own path. I will face whatever comes. And if I die... I die knowing I did what I could.”

His fingers tightened around the hilt of his sword, the weight of his words settling into the air with finality. There was no room for argument, no space for compromise. Akaza’s words were nothing more than a cruel temptation, a false promise of power for those who couldn’t see the value in life as it was, fleeting and fragile.

"I’ll stop you here," the man added, his tone colder now, the blood in Akaza’s veins freezing in response. His gaze hardened, and his posture shifted slightly, readying himself for whatever came next. “And if you continue to stand in my way, I’ll do what I must.”

Akaza’s grin faded, replaced by a look of cold determination. His eyes, burning with unnatural fervor, narrowed as he stepped even closer, his presence suffocating and intense. “You don’t get it, do you, Water Hashira?” His voice dropped lower, a venomous edge creeping into it. “Your pride is meaningless to me. Your choice doesn’t matter anymore. You’re not going to walk away from this.”

He stepped forward again, his body tense with the raw energy of his demonic power, his every movement carrying an air of finality. The weight of his words seemed to press down on the very air between them.

“You may be strong now, but that strength won’t last. Time will make sure of that,” Akaza continued, his voice dripping with contempt for the swordsman’s denial. “I’ve seen too many people like you—people who think their resolve is enough to overcome time. But you can’t. You will fall . You will wither , just like the others.”

He tilted his head, his smile returning, though it was colder, more predatory now. “And that’s why I won’t let you go. You will become a demon, whether you accept it or not. You’re far too worthy to die. Your strength, your skill, your technique— they’ll be wasted if you let them fade. But with me? With this gift? You’ll never have to worry about that again.”

Akaza’s eyes darkened, the atmosphere around him thick with malevolent energy. He took another step forward, closing the distance between them. His voice was unwavering, sharp like the strike of a blade. “You will join me, Water Hashira. You’ll become the weapon you were always meant to be—immortal, powerful, beyond the limitations of human frailty. I’ll make you see the truth, whether you accept it now or not.”

His hand raised, fingers twitching with bloodlust as a dangerous aura swirled around him. “You can’t escape what’s coming. I’ll give you one final chance to understand… But if you still refuse, then I’ll take what’s mine. You will become a demon —whether you like it or not.”

Akaza surged forward, every muscle in his body coiling with an explosive surge of power. His movements were a blur, a violent rush of pure force, the air around him crackling with energy as his foot slammed into the ground, propelling him toward his target. There was a rush of exhilaration in his chest as he saw the swordsman’s lapis-blue eyes flicker, widening ever so slightly in surprise, the movement so slow, so human in comparison to his own lightning-quick reflexes.

Akaza’s smile deepened, a savage thrill coursing through him as he closed the gap with terrifying speed, the space between them vanishing in an instant. He could already feel the thrill of the kill—the anticipation building in every fiber of his being.

Destructive Death: Compass Needle… 

The ground seemed to tremble beneath him as he executed the technique, his blows striking with the precision and power of an annihilation type. His strikes were not just fast, but devastating—each punch a force of nature, each movement aimed with deadly intent, designed to obliterate. The air screamed with the force of his attack as his limbs moved with brutal precision, his fist slamming forward in a blur of motion that would have left any normal opponent in ruin before they could even think to react.

The swordsman’s eyes barely had time to widen in realization, and Akaza reveled in the seconds of hesitation before he unleashed the full, destructive potential of his assault.

Annihilation Type!

___________

Few things were constant in the life of a demon slayer.

The sun burns. The sky is blue. One plus one is two. Shinobu Kocho has stolen her sister’s smile, and Giyu Tomioka is, without question, her most irritating patient.

It was a simple truth, one she had become all too familiar with. Yet, no matter how many times she wished otherwise, it never seemed to change.

From the moment she first encountered him, Tomioka had been a puzzle, an exasperating, impenetrable block of stubbornness. He was so entirely unlike the rest of the Hashira with his quiet, cold distance that it should have been refreshing. But it wasn’t. No, it was infuriating. His silent defiance was like an invisible force that always put him at odds with her every time he begrudgingly stepped foot into the Butterfly Mansion. She had spent hours carefully crafting her recommendations, suggestions that no one could possibly ignore—except for Tomioka, of course.

He’d never listen. He never seemed to care.

It was a game to him, wasn’t it? Skirting around her advice as if he had something far more important to attend to. As if he had somewhere else to be. As if the healing she could offer him meant nothing. Every time he came, it felt like an ordeal—his presence, cold and unyielding, sending waves of tension through the air, suffocating the otherwise lively atmosphere of the Mansion. And yet, despite all of this, there was an inexplicable fascination about him. A cold grace that never ceased to irk her, though it made her eyes linger longer than she would ever admit.

Tomioka was the most frustrating of creatures. So utterly silent, so aloof, so seemingly incapable of understanding anything she said. He had that air about him—distant, like a man too high above the rest to engage with the mundane concerns of the world. His aloofness unnerved the girls, their admiration for him laced with a strange reverence, as if he were something untouchable, beyond the reach of mortal words. It unsettled them in a way she didn’t quite understand, but it certainly didn’t make her feel any more comfortable.

But of course, that’s what made him... Tomioka.

And so, as infuriating as it was, Shinobu couldn’t help herself. She watched him, observed him, and grew more fascinated with each passing day. Beneath the surface of that cold demeanor, was there anything? Any hint of vulnerability? Anything that would make her want to peel back that layer? She couldn’t quite put her finger on it, but she wanted to. She was drawn to it, like a moth to a flame... or perhaps more accurately, like a spider to its tangled web.

But that was all irrelevant the moment she received an urgent message from her crow to return to the Butterfly Mansion, to a very injured Giyu Tomioka. 

The morning had unfolded like any other. Shinobu had taken Kanao with her on patrol through the designated district, the two of them working in practiced harmony, as they always did. It was only when she received the message from En that everything changed. Her crow’s call, sharp and frantic, had sent a jolt through her—a rare break in her otherwise steady composure.

Tomioka had held on against all odds to withstand his injuries for that amount of time, without any outside treatment since. But to praise him for clinging to life, to speak of it as a victory, would have been a gross simplification of the situation. In reality, Shinobu had run—no, sprinted —dragging Kanao along with her, her feet pounding against the ground with the force of a rushing river. She had not needed to be told twice; the urgency had been palpable, cutting through the air like a blade.

When she had arrived, the scene before her had been nothing short of a nightmare. It had been chaos incarnate—more overwhelming than anything she had encountered in her years as a Hashira. The stench of blood, the frenzied murmurs of the Kakushi, the sheer weight of the panic—it had pressed in on her from all sides. Their voices had been frantic, their usual calm shattered, as they whispered urgent details that had only heightened the tension in the air.

Her eyes had immediately found Tanjiro, his face a mask of pain and fear. The young boy, always so composed in the face of danger, had been a trembling wreck, streaks of tears staining his cheeks as he had frantically begged her to save Tomioka. His voice had cracked under the weight of his desperation, a plea that had hit far too close to home.

Zenitsu, always the nervous wreck, had been no better. His usual hyperventilating had escalated into a full-blown panic. His words had been a jumble of incoherent pleas, his fear of losing someone so important to him flooding his every movement. It had been a sight she rarely saw from him—so unrestrained, so consumed by his anxiety.

Even Inosuke, with his boundless energy and defiance, had been eerily silent. His usual bravado had been nowhere to be found, replaced by a grim stillness that had sent a chill down her spine. The boisterous roar that typically accompanied him had been subdued, and for once, his pride had been quieted in the face of the very real threat of loss.

And there, in the midst of it all, lay Giyu Tomioka.

Unconscious. Vulnerable. A stark contrast to the warrior she had grown so accustomed to. No cold indifference. No quiet defiance. No stoic silence. He was simply... there. Helpless.

A far cry from the Tomioka she knew.

The irony hit her all at once.

Giyu Tomioka, the one who had always disregarded her words, the one who never seemed to care about her recommendations, was now a model patient. He could neither fight nor flee, could only lie there in silence, awaiting her care. For once, it was her turn. It was... almost amusing. The great Tomioka, so unreachable, so untouchable, reduced to a mere patient. There was a strange satisfaction in it, something that stirred deep within her, though she would never dare acknowledge it.

And yet, despite that satisfaction, a darker thought slipped into her mind.

It was wrong. Revolting, even.

The sight of him—so lifeless, so broken—did something to her. She shouldn’t have felt it, but she did. Tomioka, with his usual grace, now lay in a pool of his own blood, his odd haori torn to shreds, the once-pristine fabric soaked in crimson, a dark stain creeping through the material. His expression, usually so cold and aloof, was different now—alive, but in a way that unsettled her. His brows furrowed ever so slightly, his lips slightly parted in an unconscious pout. His head, once perfectly poised, was now tilted to the side as he lay unmoving, except for the slow rise and fall of his chest. It was an unsettling contrast—her clinical control, and his helplessness.

It was almost... beautiful in a tragic way.

But no, that was absurd.

The smile that had become so familiar to her faltered, just for a moment, before it returned with greater intensity, sharper, more biting than before.

What a deliciously twisted irony.

She wished to the gods—those same gods that Kanae had believed in—that Tomioka would wake up and act like his usual self again. That way, she could go back to being frustrated with him without feeling like this. Without the strange ache that was starting to settle in her chest. Without this ridiculous softness creeping into her thoughts.

It was far easier to loathe him, to find his stony silence irritating. Far simpler than this.

At least then, she wouldn’t have to feel guilty about it.

___________

Two blood transfusions, a hundred and sixty stitches, and nearly four hours of meticulous effort later, Shinobu found herself firmly amending her earlier statement. Even on the precipice of death, Giyu Tomioka remained an impossible figure, steadfast in his refusal to make things easy for her.

Despite everything—despite the narrowest margin by which he had clung to life—Shinobu couldn’t bring herself to entirely rid herself of the irritation he provoked. The anger was almost absurd, yet it was there, a quiet ember beneath her outward composure. Why couldn’t he have just... stayed out of trouble for once?

For a fleeting moment, however, there was a tiny, almost comforting thought in knowing he was stable, if only just. For a man teetering so precariously on the edge of death, he was as stabilized as anyone could hope for. His skin was still a sickly shade of grey, so far removed from its usual pale warmth, but his breathing—ragged and shallow—had evened out, the rise and fall of his chest gentle and regular for the first time in hours. His pulse, weak as a butterfly’s kiss against her fingertips, remained strong enough to stave off the dread that threatened to overtake her. She found herself checking it again, and again—just to be sure he wasn’t already gone.

A sigh escaped her lips, though it was laden with an irritation that had yet to fade. He had made it this far, only to nearly ruin her perfectly organized day.

She had been spared the uproar of the Kamado trio, for now. Tanjiro, as always, was far too concerned, practically radiating with an empathy so potent it was almost painful to witness. Zenitsu and Inosuke, ever the loyal—if misguided—companions, were no better, threatening to tear down the mansion walls in their desperation to stay by his side. But Shinobu had let them shout, let them clamor and argue their point, until Aoi had forcibly dragged them off to tend to their own injuries. At least their wounds would be treated now. As for Tomioka...

Shinobu trusted her hands more than their hopeful hearts.

The chaos in the room finally faded into silence, and Shinobu seized the opportunity to wash her hands. The water basin before her was far too cold, and the blood that had clung to her palms had begun to dry too quickly, turning thick and sticky as it flaked beneath her nails. Her scrubbing was almost violent—sharp, relentless, as if the very act of cleaning could expunge the last remnants of what she had witnessed. What she had done.

It wasn’t just the blood.

No. It was the shaking.

It started in her hands, trembling as if caught in a fever, but soon it spread, clawing at her insides, an unshakable, gnawing sensation. No matter how hard she scrubbed, no matter how cold the water became, there was no escaping the feeling of death that lingered too close. No matter how much she tried to wash away the smell of blood, its coppery stench clung to her senses like a cloying presence, an unwanted guest who had overstayed its welcome.

She had always disliked the smell of blood—its sharp, metallic scent that reminded her far too much of coins , of the slippery inevitability of death.

But it wasn’t just the smell.

It was the feeling—the one she thought she had buried so deep.

The ghost of it—of her—was never far. And now, in the quiet of this moment, it had returned with an unbearable force.

That face.

His face—pale, too still—reminded her so much of Kanae’s.

It was wrong.

Tomioka’s face, usually so sharp and guarded, had softened. There was a subtle vulnerability to it, an unguarded tenderness that she had only seen once. His lips, usually set in an expression that could cut stone, were now relaxed—just slightly, but enough for it to unsettle her. The sight of him— vulnerable —was an image that twisted painfully inside her chest, the kind of quiet, unexpected softness she had once seen only in Kanae.

Kanae had always worn that soft, serene smile, so gentle, so unburdened by the horrors around her—even as death drew near. That smile, warm and tender, had always been her sister’s trademark. It never faltered, except in the final moments, when everything had been too much .

Now, in the frail form of Giyu Tomioka, unconscious and broken, his face mirrored it .

It was impossible to ignore the resemblance, and that struck a deep, twisted chord in her heart. His soft expression, flushed by a burgeoning fever and injury, reminded her of Kanae in ways that felt almost unnatural , as if fate itself had turned on her and played a cruel trick.

Her breath caught in her throat as her hands—still shaking—scrubbed harder at the blood, but no amount of water could cleanse her of the image of Tomioka’s face—the soft curve of his lips, the fragile, innocent vulnerability in his eyes, the expression he wore now, exposed and raw.

Kanae had always been delicate—so much more delicate than Tomioka could ever be. Kanae had a certain grace about her, one that could never have been mistaken for anything rough or untamed. Yet, here Tomioka lay, looking almost too soft , his features unguarded for once. His lips, slightly parted, not quite a smile, but still relaxed in a way they rarely were. His expression now was… soft, like that of a child—innocent, unprotected, and startlingly vulnerable.

Shinobu swallowed hard, the lump in her throat almost suffocating her. It was wrong, she thought, feeling her chest tighten in protest. This wasn’t supposed to happen. He wasn’t supposed to remind her of Kanae.

But there he was—Giyu Tomioka, with his battered, fevered face— too much like her .

Her hands trembled as they moved furiously beneath the cold water, scrubbing away the blood, but it was hopeless. The sensation of death would never truly leave her. It clung to her as if it had found a permanent place on her skin, a constant reminder of the things she had been unable to save. Of her sister .

Kanae had always looked so serene, even in her final moments, her smile—so gentle —a silent promise to keep the darkness at bay. But now, with Tomioka’s unconscious face haunting her, that image of Kanae’s smile—a smile that had been stolen from her in the blink of an eye—was like a cruel joke.

Her chest tightened. Kanae had always looked like that.

The thought of her sister’s warmth, her endless kindness, and her unshakable peace, was enough to make Shinobu’s stomach twist. Her hand, still trembling, refused to leave the basin.

She squeezed her eyes shut, trying to banish the horrifying image of Tomioka from her mind, but it was impossible. It wasn’t fair. This wasn’t fair. 

Tomioka wasn’t Kanae. He couldn’t be. And yet, for that brief, fleeting moment, the reminder of their similarities was too much for her to bear.

Giyu Tomioka was not Kanae Kocho. He could never be her sister. Yet, in that silent moment— he was too much like her.

Shinobu’s heart clenched. She didn’t want to see this. She didn’t want to feel this.

She scrubbed harder, her breath shaky.

She needed to finish cleaning. To wash it all away. Tomioka. Kanae. Everything.

And then—finally, she could breathe.

With several anxious attendants now assigned to Tomioka’s care, and knowing that he no longer required her immediate attention, Shinobu turned away. Letters needed to be written, reports filed, and the entire bureaucracy of the Corps’ hospital kept in motion. Her thoughts, however, were a tangled mess, and no amount of task-driven focus could rid her of the discomfort gnawing at her.

Somewhere in the background, a crow—a stubborn, angry thing—was squawking incessantly, trying to follow the Kakushi indoors, its protests croaking into the silence like a broken record. The cacophony echoed through the clinic's halls until one of the triplets finally relented, granting permission for the bird to enter. It was a nuisance, really, a reminder of just how relentless Giyu Tomioka's world could be, even in the face of near-death.

For reasons Shinobu couldn’t fathom, Tomioka had somehow come into possession of an old crow, one that was, frankly, suited for a quiet retirement. The bird’s raspy, impatient calls echoed through the halls, each one tinged with irritation, as if it was upset by something far more serious than mere hunger. Its wings flapped against the air in bursts of agitation, a frantic rhythm of unrest. This wasn’t just any crow. No. This particular creature had been clinging to life with a tenacity that mirrored its master’s—determined, stubborn, unyielding—and it was painfully evident that the poor thing had become a shadow of its former self. Once an efficient messenger, now it was little more than a frail, bothersome presence. Yet there was something oddly human in the way it moved, something about the eagerness in its actions that stirred a strange, unwelcome recognition in Shinobu. It wasn’t just loyalty it was offering—it was affection.

Her teeth ground together as she fought to suppress the rising tide of frustration that clawed at her chest. The crow’s insistence—so persistent, so maddening—was almost suffocating. Its cries for Tomioka, its desperate need to stay close to him despite his fragile condition, grated against her nerves in a way she couldn’t quite explain. It was a sound she couldn’t escape. The bird, in its loyalty, only reminded her of the precarious line she walked, of the weight of responsibility she carried, and of the inevitable tension between the fate of her comrades and her own inner turmoil.

She felt the sharp, simmering frustration creep up her throat, threatening to spill over like a dam on the verge of breaking. It was like a boil beneath her skin—raw, burning, and relentless. The need to scream, to release everything she had buried under layers of control, gnawed at her. But Shinobu had long since learned that such outbursts were beneath her. She had learned that crying, that giving in to such emotions, accomplished nothing. All it did was make one appear weak. She had seen it in others, and she would not fall victim to it herself.

No, she was too pragmatic for that. Too focused. Her mind always worked in systems, in solutions, in calculations. It was far more efficient to lock her feelings away, to channel her anger and her frustration into something productive, something that would drive her forward, no matter the cost. Emotions were distractions—distractions that had no place in her line of work. But even with that knowledge, the ache inside her chest seemed to grow with every squawk of the crow, with every reminder of how hopelessly entangled her feelings had become with the lives of those around her.

This situation, all of it—Tomika’s injuries and the ever-pressing weight of the Corps’ expectations—made her feel as though she was being suffocated under the crushing weight of responsibility. And yet, the crow’s persistence, its unrelenting drive to stay with its master, only served to make everything worse. It was like a mirror to her own internal chaos: an unwavering, frantic need to fix what was broken, to heal what was beyond her power to heal.

Her hands, raw and angry red from the hours of scrubbing and treating Tomioka’s wounds, trembled with the adrenaline still lingering in her body. It wasn’t enough to calm her, though. She needed to take care of him, find the answers hidden within his blood, and yet, she wasn’t ready to face the aftermath of whatever she might uncover. The knowledge gnawed at her insides as she washed away the remnants of his blood, feeling as if it would never truly leave her.

There was a bath waiting for her. A small escape. She could dry her hands, run the water, breathe in the steam and pretend that it was only the heat that made her lungs burn. She could pretend that everything would be fine, that it was all just an illusion. She could dry her skin, the warmth comforting in its simplicity, and delude herself into thinking that she could forget. That she could push aside the anxiety tightening around her chest, even if only for a moment.

But as much as she tried to drown it out, the thoughts would always return. The questions she couldn’t answer, the things she’d never know. The worry that gnawed at her gut—was Tomioka’s body truly healing? Or was it slipping into something far darker, more insidious than anyone realized? Her mind was a mess of half-formed theories, and no matter how much she tried to focus on the tasks at hand, it was impossible to ignore the gnawing uncertainty.

By the time she returned to Tomioka’s bedside, he was still asleep, as expected. The injuries he had sustained were severe enough to keep him unconscious, though the faintest rise and fall of his chest assured her that he had, at least, not yet succumbed to whatever darker force was working against him.

Shinobu had already conducted her preliminary examinations, and when the results of the blood tests came back, the findings were far more unsettling than she had hoped. There was an alarming amount of demon blood present in his system—a troubling sign, one that suggested a transformation was already beginning to take place. The ratio was high enough that, if left unchecked, it could lead to irreversible changes.

She sighed softly. There was little time to waste. Her mind already calculated the steps necessary to counteract the blood’s effects. She ordered Tomioka be moved to a darker room to aid in his recuperation, the reduced light helping to prevent further complications. Immediately, she instructed a round of wisteria injections be administered, the first of which she personally administered, feeling the burn of her own fatigue as she performed the task. It was a reminder of how fragile their lives were, how quickly everything could change.

As the hours passed, the weight of the situation settled on her shoulders. There was only so much she could do. The outcome was beyond her control, and yet she clung to the hope that Tomioka would recover without lasting effects. But that hope was thin, delicate, fragile.

When her work was finished, Shinobu reported her findings to Oyakata-sama, as was expected. The response was swift, as always.

Shinobu Kocho,

I hope this letter finds you in good health and spirits, despite the burdens that weigh upon you. Your constant dedication to the well-being of our Corps, particularly in your care for Giyu Tomioka, has not gone unnoticed. I am sincerely grateful for your unwavering attention to the critical situation at hand and the meticulous work you have done to stabilize him.

The circumstances surrounding Giyu’s injury are indeed grave. The presence of demon blood within his system is concerning, and I trust that you will continue to monitor him closely and do everything in your power to ensure his recovery. I know that you, more than anyone, understand the weight of such a situation. You have always approached your duties with both intellect and compassion, qualities that make you irreplaceable to us all.

It brings me some measure of peace to know that Giyu is in capable hands, though I must admit, I find myself burdened with the thought of his suffering. You and I both understand the fragility of life in our line of work, but I will allow myself to hope for his recovery, no matter how slim the chance may seem. Hope is a rare and precious thing, and sometimes it is all we have left to cling to.

Your report on his condition has been thoroughly considered, and I will pass it along to those who can assist in any further measures that may be necessary. Rest assured that I am fully aware of the severity of the situation and will give it my complete attention.

Please know that your efforts are not taken for granted. I value you greatly, Shinobu, and I deeply appreciate all that you do for this Corps. May you find some respite in your work, even if just for a brief moment, as the road ahead remains long and uncertain.

Take care of yourself, and remember that you are not alone in this. All of us, even in times of challenge, are bound together by the same purpose.

With my deepest respect and gratitude,
Ubuyashiki Kagaya

And that was that. A message of gratitude, brief and to the point. No more, no less. Shinobu read the words again, and yet it didn’t bring her any comfort. No matter how many times she read it, the hollow feeling in her chest remained. It wasn’t enough. It would never be enough.

Because as long as Giyu Tomioka was teetering between life and death, no thanks, no report, no simple note would ever ease the weight of the situation.