Kenji slashed the fireball with his new powers! Unsheathing his mind-forged Demon Slayer sword, he cut through the flames like paper—Gyutaro stumbled back, surprised! The very air around them rippled with heat and tension as the fireball, once a roaring inferno aimed to incinerate him, dissipated into harmless cinders under the gleaming arc of Kenji's blade; it had been only days since he had awakened the dormant power sealed in the ancestral mountain shrine of his clan, the Shiranami, whose bloodline was said to have danced with gods and demons alike, and now, standing amid the burning ruins of the Scarlet District, his black hair whipped by wind and ash, eyes glowing with a silver hue that mirrored the blade he now wielded, Kenji knew he was no longer a mere swordsman, but a vessel of wrath and balance; Gyutaro, the demon of festering blood and rotting intent, growled with a voice that sounded like rusted chains grinding over broken bone, stepping back as he studied the young warrior before him, nostrils flaring, unsure whether to strike again or retreat into the shadows from whence he came, but Kenji wasn't about to let him vanish—not now, not after everything, not after he watched his sister's shrine be desecrated, his village scorched into silence, his sensei's blood soaked into the roots of the mountain where he once trained blindfolded for three days and nights in the rain to hear the breath of leaves before learning to cut them in a single motion; no, Kenji was the blade now, and the blade thirsted for justice, not revenge—though sometimes, they felt like the same thing; with a roar, Gyutaro lashed out again, this time not with fire, but a sickle conjured from the marrow of cursed spirits, spinning toward Kenji with a shriek of anguish embedded in its curved edge, but the boy stepped to the side, calm as a pond before dawn, and let the weapon pass just inches from his chest before he moved—one, two, three steps, each faster than the last, until in a blink he was behind the demon, and his sword, which was not made of steel or iron but of concentrated will forged through agony and resolve, whispered through Gyutaro's back like a wind through tall grass; the demon screamed, but it wasn't a cry of pain—it was of fury, of confusion, of fear, because this should not have been possible, no mortal had ever wounded him this deeply before, not in two centuries of devouring hearts and curses, but Kenji was no longer mortal in the way they understood it, he had passed the threshold during the Trial of Echoes, when he stood alone in the Temple of a Thousand Mirrors and faced the illusions of every path he could have taken—the coward, the tyrant, the broken boy—and chose instead to keep walking, straight ahead, into the mirror that reflected nothing; the blade, known only in legend as Yūrei no Ha—the Ghost Edge—now pulsed with the souls of generations before him, and as Gyutaro staggered forward, hissing, regenerating far slower than usual, Kenji's mind flickered with memories that were not his: a woman in blue armor whispering a lullaby to a dying friend, a samurai bleeding beneath cherry blossoms whispering, "We protect them still," and even the scream of a child who refused to let go of a blade heavier than her arms could hold—these echoes gave him strength, and as the demon spun to face him again, Kenji ducked, rolled, and launched into the Seventh Form: Severing Moonlight, an arc of silver fury that exploded into a storm of afterimages, slicing through every direction at once; Gyutaro blocked one, then two, but the third and fourth passed through his guard, carving crimson lines across his face and chest, staggering him as he let out a guttural cry and stabbed his sickle into the ground, summoning a geyser of blood spikes that tore upward like jagged spears, but Kenji leapt high, his sword spinning, eyes narrowing as time slowed—he could see the blood veins in the air, smell the sulfur in the demon's breath, feel the fear pulsing from the earth itself, and with a twist, he flipped, descended, and drove his blade downward into the heart of the explosion, unleashing the Eighth Form: Heavenfall Requiem—a finishing move only spoken of in myths, a vertical plunge that cuts through not just flesh but the will to regenerate, slicing the demonic essence away from its host—and Gyutaro, stunned and screeching, staggered, eyes rolling back as cracks began to form along his body, steam rising, energy leaking like black ichor; "You... you weren't supposed to be able to...," he muttered, voice shrinking, but Kenji simply stood, panting, smoke rising from his shoulders, blade still humming with the aftershock of divine force, and said, "I wasn't supposed to survive, either—but here we are," before walking away as the demon exploded in a shower of fading sparks, his body collapsing into ash and whispers; silence fell over the burning street, and Kenji, clutching his side where a shallow cut still bled, knew this was just the beginning—he could feel it in the tremble of the earth, in the cold wind that now blew despite the heat, in the subtle voice of the sword that told him: more are coming; and they did come, one after another, beasts and shadows from the deepest rifts between realms, demons with mouths stitched shut and eyes that bled light, monsters that had once been men, twisted by regret and hatred, each demanding sacrifice or surrender, but Kenji, lone sentinel of the ruined temple, stood firm, his techniques evolving in battle—Tenth Form: Lunar Veil, which turned him into a blur of shifting silhouettes; Eleventh Form: Mirror Fang, which struck not the enemy but their intent, breaking spells before they were cast; and eventually, he discovered the forbidden forms, the Black Lotus Style sealed by his ancestors for fear it would consume its wielder—yet Kenji, who had already lost everything, embraced the risk, drawing upon the Thirteenth Form: Hollow Bloom, which conjured ghostly petals that fed off enemy fear, and with every battle, he inched closer to the truth—that the real enemy was not the demons, but the corruption leaking from the Hollow Gate, a fracture in reality born from the wars of forgotten gods who still whispered their madness into mortal dreams; to seal it, he would need to journey beyond the edges of the world, across the Sea of Glass, through the Obsidian Wastes, into the Cradle of Echoes where even time could not reach, gathering ancient fragments of a blade older than memory, reforging the True Edge—a sword not of metal or thought, but of universal intent, capable of cleaving cause from effect, life from death, sin from soul; he met allies along the way—a cursed monk with a bell for a heart, a blind archer who could hear lies, a girl who carried the last phoenix egg inside her chest—and they fought, bled, healed, and lost together, until finally they stood at the precipice of the Hollow Gate, where the final guardian waited: an entity not of flesh or spirit, but concept—called Despair, wearing a cloak of all Kenji's regrets, wielding his mother's voice as a weapon, and when it struck, Kenji was nearly undone, falling into his own doubts, drowning in the abyss of choices never taken, but it was then that the spirit of his sister appeared—not as a ghost, but as a memory made real through the power of his sword—and reminded him why he fought: not for vengeance, not for pride, but for the hope that one child, someday, might grow up in a world where shadows no longer whispered from the corners; rising from the ground, Kenji activated the Final Form: Dawnshatter, a technique that required the sacrifice of his past, burning away every fear, every scar, every name he'd once been called, reducing him to pure intent—he became the blade, and in a single step, faster than thought, he struck, and Despair split into a thousand lifeless ideas, dissolving into motes of light; the Hollow Gate closed, reality healed, and Kenji, now a nameless wanderer, laid down his sword at the peak of the world, watching the sunrise for the first time not as a warrior, but as a man, finally at peace.