Ninja Turtles vs Demon Slayers

Ch. 01: The Meeting

Lyall the Werewolf: After watching Demon Slayer and loving it, I kept thinking about how the Teenage Mutant Ninja Turtles would fit into this chaotic series. Time to give it a go!

Like Spider-Man: Web of Ikebukuro and Uncanny Biohazard, I'll be making up my own versions of the TMNT characters, so don't be surprised if they share a few traits from canonical sources. Primarily, though, you'll likely notice their basis on the 2003 series, as that series is my favorite iteration of the franchise.

(I don't own TMNT or Demon Slayer)

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Tanjiro Kamado was a young Demon Slayer of 15 years of age. He had ruffled black hair with red tips, swept back to reveal his forehead, which had a distinct scar on the upper left side. He wore the standard Demon Slayer uniform, which was a reddish-brown color tone.

As Tanjiro lay unconscious, he heard an unfamiliar voice.

"Wake up. Wake up! Hey, you gotta... can you even hear me? Are you just gonna sleep all day?! Wake the hell up!"

Tanjiro finally stirred, hearing the voice, birds chirping, and smelling the pleasant scent of wisteria in the air. He opened his dark-to-light red eyes and found himself on pebbled ground, his arms bound by rope, but that was the least of his concerns.

He scanned his surroundings and realized he was in the garden of a large Japanese mansion, surrounded by wisteria trees.

He also saw his friends— the Teenage Mutant Ninja Turtles, Leonardo, Donatello, Raphael, and Michelangelo—lined up, without their weapons, and restrained with rope as well.

"L-Leo... guys..." Tanjiro uttered, his throat and jaw still sore.

"Good morning, Tanjiro," Leo said calmly. He was the eldest of four Turtles, and the de facto leader. He wore a blue ninja mask, a pair of navy leather wrist gauntlets, and leg guards. Despite his calm demeanor, the fresh cut wounds he suffered were still visible. They seemed to have healed up for the most part.

"Hey, dude! Feeling alright?" Mikey asked. Resident joker and class clown, he was the youngest and shortest of the brothers. He also wore an orange mask and a dark yellow bandanna tied around his left arm. He also wore elbow and knee pads like skateboarders.

"W-What..."

"Don't try to talk. Your jaw's injured," Donnie advised. He was the most intelligent of the Turtles and a naturally gifted scientist. He wore a purple mask, goggled on his head, brown leather gloves and boots, and a belt with several homemade gadgets, notably his Shell-Cell. Not that his Shell-Cell would work in Japan's Taisho era.

"B-But, you're all..."

"Don't worry about us. Worry about them." Raph jerked his chin behind Tanjiro. He was the second-oldest and most aggressive of the four Turtles. His red mask resembled a do-rag. He wore black fingerless gloves, and sports tape wrapped around his ankles and wrists.

Tanjiro, still tired, turned to see several individuals standing over him. Shinobu Kocho was there, along with five bizarrely dressed Demon Slayers.

"I heard he's a Demon Slayer with a demon in tow. I didn't expect him to have four giant turtle monsters with him. And yet he doesn't have as much flair as them. Too bad!" a deep, flamboyant voice remarked.

"This boy must be put on trial! So it shall be!" declared a confident male voice.

"Huh... who are..." Tanjiro muttered—before the Kakushi named Goto slammed his head against the ground.