"I don't recall giving you permission to overstep me."
Ryuya's scarlet eyes narrowed.
Veins bulged along his forearms as he tightened his grip on the demon blade. The eyes embedded within the blade flickered with dark-purple light.
He inhaled deeply.
Then swung.
"Moon Breathing, Fourteenth Form: Violent Transformation — Heavenly Palace Crescent!"
Countless dark-purple crescents burst forth, laced with smaller azure blades. They filled the sky like an advancing army, their aura crushing forward with overwhelming force.
The night sky was torn open.
Bluestone walls were shredded.
The courtyard floor became a lattice of crescent scars.
Gyomei Himejima swung his chain desperately, trying to deflect the storm.
It was useless.
There were too many.
Even with the Demon Slayer Mark awakened, wounds tore across his massive frame. Blood soaked his robes.
"Ahhhh!!"
Sanemi Shinazugawa roared like a feral beast.
A green pinwheel-shaped mark bloomed across his right cheek.
The Demon Slayer Mark.
Ryuya smiled faintly.
Interesting.
Sanemi staggered upright, drenched in blood, eyes nearly rolling white from exhaustion.
"Wind Breathing, Eighth Form: Primary Gale Slash!"
"Wind Breathing, Fifth Form: Cold Autumn Mountain Wind!"
"Wind Breathing, Ninth Form: Idaten Typhoon!"
He unleashed technique after technique in reckless succession.
Wind blades intercepted crescents.
Upward slashes shattered lunar arcs in the sky.
More wind tore sideways to relieve Tengen Uzui's pressure.
"Go!"
After three consecutive techniques, Sanemi collapsed into the blood beneath him.
Gyomei, wracked with agony, could barely stand.
Tengen seized the opening they had bought with their lives and sprinted toward Genya Shinazugawa.
Elsewhere—
Sabito was being crushed.
"Destructive Kill: Annihilation Type!"
Akaza's azure aura flared violently.
One punch.
Sabito was blasted into a wall.
His fox mask shattered. Blood streaked down his face.
Akaza stepped forward calmly and grabbed Sabito by the hair.
"You have potential. Become a demon."
He meant it.
Sabito coughed blood—
Then sneered.
And spat in Akaza's face.
Akaza tilted his head, dodging easily.
"I respect your choice."
He hurled Sabito into the wall again.
"Sabito!"
Giyu Tomioka threw himself forward, using his body to cushion the impact.
He slammed into stone.
Sabito lost consciousness.
"Run, Giyu!" Sakonji Urokodaki roared.
He picked up Sabito's fallen blade and charged.
"Water Breathing, Tenth Form: Constant Flux!"
A tidal wave surged toward Akaza.
"Master!!"
Something ignited in Giyu's chest.
His blood boiled.
The cold no longer weighed him down.
Towering waves surged behind his master.
On Giyu's left cheek—
A dark-blue wave-shaped mark appeared.
The Demon Slayer Mark.
Akaza's eyes gleamed.
Splendid.
He punched Urokodaki back first—blood sprayed from the elder's mouth.
Then his fists and kicks hammered against Giyu's blade.
Again and again.
Wounds opened across Akaza's body—
—and healed instantly.
That was the difference.
Demons regenerate.
Humans do not.
Akaza's neck remained unreachable.
"Destructive Kill: Final Form — Blue Silver Chaotic Afterglow!"
The Compass Needle flared.
Azure shockwaves exploded outward like missiles.
"Water Breathing, Eleventh Form: Dead Calm!"
Giyu emptied his mind, blade tip touching the ground.
He deflected—
But how long could it last?
Akaza grinned.
"How long can you hold out?"
The attacks pressed closer.
Giyu's heartbeat became erratic.
He was reaching his limit.
Suddenly—
Akaza lunged in.
"Destructive Kill: Foot Technique — Flowing Light Flash!"
Azure points of light struck—
Crack!
Giyu's Nichirin Blade snapped in half.
"Die."
Akaza's fist shot forward.
At the final instant—
Urokodaki stepped in front of Giyu.
The blade's spine was driven into his own chest by Akaza's punch.
Blood sprayed.
He dropped to his knees.
"Master!!"
"Go!" Urokodaki roared, grabbing Akaza's leg despite the mortal wound. "Take Sabito and leave!"
Giyu trembled violently.
"Execute the order!"
"...Yes, Master!"
Tears streamed down Giyu's face.
He grabbed Sabito and fled toward the dojo's exit.
Behind him—
Urokodaki's vision dimmed.
A faint smile appeared.
Giyu.
Sabito.
To have mentored disciples like you—
It is the pride of my life.
The legacy of Water Breathing—
The duty of slaying demons—
I entrust it to you.
...
Author's Note:
The full completed version of Demon Slayer: Son of Muzan (Completed) is now on Patreon!
🔥 I also have an Additional 18+ fanfics now available for readers who enjoy exclusive mature stories. 😉
1.Dragon Ball: Oolong's Sex Adventure
2. Elements of Lust – ATLA & Korra Mixed Smut
3. Doraemon: Filtering with Nobi Tamako
4. The Naive Me Who Became Someone's Everyday Secret
5. High School DxD: Rias Gremory, the Phenex Bride
🔗 patreon.com/Shadow_demon_007
Thank you all for your support and love for this story 💙