Demon Slayer: I Got Reincarnated As Yoriichi

Suiryu laughs, "Now this is getting interesting… I love to fight with strong opponents."

">———BLOOD DEMON TECHNIQUE: SUNFIRE BEAM———<"

A blinding beam of searing flames erupts from Suiryu's hands, roaring toward Kaito.

Kaito leaps into the air, his katana slicing through the flames despite it glowing red from the heat.

"WATER BREATHING, FOURTH FORM: STRIKING TIDE"

Suiryu twists his massive body just in time, avoiding a fatal blow, but Kaito's blade grazes his throat. A spray of blood erupts as Suiryu growls in pain, staggering momentarily.

Suiryu snarls, spinning and launching a devastating punch aimed at Kaito.

Before the blow lands, a fiery explosion erupts from Suiryu's arm. Koji stands firm in the distance, his gun smoking from the shot.

"Gotcha," Koji mutters.

"You damn kids!" Suiryu roars, his severed arm regenerating rapidly, flames crackling around him.

Suiryu vanishes in a blur, reappearing inches from Koji with his leg cocked for a devastating kick. The force behind it rips through the air, ready to crush Koji's skull.

In a flash, Kaito materializes beside Koji, his katana steady. "WATER BREATHING, ELEVENTH FORM: DEAD CALM!"

Suddenly, the world shifts. Suiryu finds himself surrounded by an endless expanse of still water, an eerie silence enveloping him. His reflection ripples in the liquid mirror beneath his feet, the horizon stretching endlessly.

"What the hell is this?!" Suiryu snarls, spinning around.

Before he can react further, Kaito strikes. His movements are a blur, each slash creating a sharp ripple in the watery expanse. Suiryu feels his body tearing in multiple places, his perception unable to keep up with the speed of the attack.

"This can't be real!" Suiryu roars, lashing out wildly. But there's no use.

The ethereal water world dissolves abruptly, leaving them back in the forest. Suiryu staggers, his chest and limbs gashed, though his head remains intact.

Kaito was unable to slice his head due to his immense durability.

Koji seizes the moment, firing a bullet aimed at Suiryu's neck. Suiryu barely tilts his head in time, the shot grazing his skin as it whizzes past.

"Tch… that was close," thinks Suiryu.

They both lunged at him, overpowering him with their teamwork. Each strike from Kaito's blade flows seamlessly with Koji's gunfire, forcing him to stay on the defensive.

From some distance, Tsunenari watched them fighting. He is unable to move, his leg still broken. "Fuck… I can't help them… What kind of beast is he?"

Tsunenari managed to stand on his feet, his legs still shivering as they're broken.

Suiryu gritted his teeth, "This is no good… this kid's blood demon art is sucking my powers…"

Kaito darts forward, his movements blindingly fast. "WATER BREATHING, ELEVENTH FORM: DEAD CALM!" The air around him stills completely, silencing even the crackle of Suiryu's flames.

Suddenly, a fierce gust of wind roars from behind. Tsunenari, mustering every ounce of his remaining strength, charges forward. "WIND BREATHING, FIRST FORM: DUST WHIRLWIND CUTTER!"

His blade carves through the battlefield like a tornado, uprooting trees and tearing apart the ground in a destructive arc.

Koji seizes the moment, firing a barrage of flame bullets that ignite the air around Suiryu.

They all encircled him, surrounding him and unleashing their attacks in perfect synchronization.

Suiryu smirks. ">———BLOOD DEMON TECHNIQUE: EXPLOSIVE FIREBLAST———<"

In an instant,

A massive explosion erupts from Suiryu's body, the shockwave tearing through the forest. Kaito, Koji, and Tsunenari are sent flying in different directions, crashing into the debris-strewn battlefield.

The smoke clears, revealing Suiryu standing amidst the destruction, his body charred but still radiating terrifying power.

They cough, heavily injured from the explosion.

"What kind of monster is he?" thinks Kaito.

————————————————————————

38 Years Ago.

In a village, some teenagers are bullying a 13-years-old boy. The boy is surrounded by the teenagers.

"Hey, pigfoot! Bow down before us," one of them sneers, shoving him roughly.

The boy, his face bruised and swollen, lowers himself to the dirt. Blood trickles from his cracked lips and broken teeth. "Please… show some mercy!" he begs, his voice trembling.

The teenagers burst into laughter, their mocking echoing through the alley. "What a pathetic loser!" their leader sneers, kicking dirt onto the boy.

Satisfied, they turn their backs, walking away.

But something snaps.

The boy silently pulls a dagger concealed in his tattered clothes. With a sudden, feral scream, he lunges at the leader, plunging the blade into his temple. Blood sprays across his face.

The laughter dies, replaced by screams of terror.

One by one, he hunts them down, the dagger flashing in the moonlight. Bodies collapse onto the blood-soaked ground. Only one bully remains, crawling desperately to escape.

"P-Please… Don't do this, Suiryu…" the boy stammers, his voice breaking.

Suiryu laughs in hysteria, stabbing him multiple times, blood spraying on his face.

When he reached home, his father wasn't so surprised by his appearance or what he had done. Despite his crimes, no one was able to find out who the murderer was.

At the age of 15, he also murdered his own father.

By time, he had committed multiple crimes such as murder, rape, theft, etc.

At the age of 21, he was finally turned into a demon.

————————————————————————

Now.

Suiryu lunges at Kaito with terrifying speed, slamming his feet into Kaito's stomach.

"Arghhh!" Kaito cries out, blood spurting from his mouth as his body crashes into the ground with a sickening thud.

His vision blurs, the edges darkening until unconsciousness claims him.

Tsunenari's jaw dropped, unable to understand what just happened. "W-What? Is he an ogre..? How did he dominate all of us together..?"

Tsunenari can't even move an inch, his bones broken. "Tch… If I don't move… we'll be dead…"

Suiryu rips off a tree and throws it at Tsunenari. The tree crashes onto him, pinning his shattered body beneath its crushing weight.

Koji forces himself to stand, his trembling legs barely holding him up. He raises his gun, his vision blurred from blood and exhaustion. "I won't let him hurt you, Aniki…" he mutters, firing at Suiryu.

But Suiryu sidesteps the bullet with ease, his laughter echoing like a haunting melody, "Hahah… Do you think you can beat me with these bullets?"

In an instant,

Suiryu closes the distance and slams his fist into Koji's face, sending him crashing into the dirt. The impact leaves Koji coughing up blood, but somehow, he pushes himself up again, his body a battered mess.

Suiryu instantly appears in front of him, kicking at his stomach with a brutal force. The sound of cracking ribs fills the air as Koji vomits blood, staggering but refusing to fall.

Koji fires again, the bullet igniting Suiryu's flesh.

Suiryu's screams, his entire body burning with his own blood demon art mixed with the bullet. "Aaaaahhhh… You…"

Tsunenari struggles beneath the weight of the tree, his voice trembling with desperation. "Koji… Stop! You're going to die… Just run!"

Koji turns his bloodied face toward his brother, his smile faint but unwavering. "I can't… I won't leave you…"

Suiryu extinguishes the flames, his fury unmatched. He charges at Koji, delivering a flurry of blows to his face, each punch tearing away at what little strength Koji has left. Blood spills from Koji's mouth, his swollen face nearly unrecognizable.

"You are so annoying… Just die already!"

Suiryu grabs his arm with brute force.

"I… I can't even move my hand…" thinks Koji.

With sheer force, Suiryu rips off his arm from his body.

"AAAAAAAAAAAHHHHHHHHHHH!!!" His agonized scream echoes through the forest, sending chills down even Suiryu's spine.

"KOJI!!!!" Tsunenari's voice cracks with horror as tears stream down his face. His entire body shakes, helpless under the crushing weight of the tree. "Just leave! Don't do this… Please!"

Koji, clutching the bleeding stump of his arm, staggers to his feet, placing himself protectively in front of his brother. His voice is weak but resolute. "I can't, Aniki… I won't leave you alone… No matter what."

Tsunenari's tears fall freely, his voice breaking as he sobs. "You idiot… Don't you get it? You're going to die! Whether you stay or go, we're doomed. Just… please save yourself."

Koji smiles faintly, his bloodstained lips trembling. "Aniki… I don't care if it costs me my life. I'm not leaving until this bastard is dead."