Reborn In Black Clover With Demon Slaying Magic

Rushing over to his downed friend, Patry did his best to stabilize him with light magic while screaming at the other elf.

"What's the meaning of this Ronne!! Have you lost your mind!"

Hearing his screams but remaining unnaturally composed, a weird smile spread on Ronne's face as he started slowly walking forward ignoring both Yuno and Grim who were completely lost.

'This magic... it isn't elven.'

Gripping his grimoire tightly, a chilling feeling started spreading throughout Grim's body as he watched Ronne ascend into the air and approach the altar with Yuno's magic stone in hand.

Having never felt such a chilling sensation like this before, Grim had no intention of stopping the elf since he was curious as to why his body and grimoire was reacting to a nobody like this.

[A/n: Lol, his curiousity is gonna kill them all]

"I remember it all." Ronne started speaking as he landed on the altar. "The day I took advantage of the bond between the two mages chosen by the four leaf grimoires to give birth to a grimoire of despair. And now... I can finally obtain what should've been mine all along."

Placing the magic stone into the final slot on the altar, he continued his bad guy monologue.

"Here is this Shadow Palace, a place that acts as an interim between this world and the next, I shall summon forth that which I dėsɨrė."

Fitting into the slot nicely, the ground started to shake as a black goo-like substance spread from the magic stone and covered the altar.

*HUM!!*

Feeling his grimoire start to shake violently, Grim held onto it tightly.

From within the black substance, a pitch black coffin like object appeared surrounded by thin black tentacles.

Looking at the coffin in front of him, a dark smile spread on Ronne's face as he opened his arms wide and said "Welcome back."

As if on que, his body suddenly lost strength as he fell backwards and onto the ground. But before he fell, from his head floated out a small mass of blackness that joined together with coffin.

Feeling an unfamiliar kind of energy pulsating from the coffin, a wave of cold mana began to fill the room causing his grimoire to shake even more violently than before.

*Badum*

*Badum*

With the black mass from Ronne finally joinning with the coffin, a weird change began to take place as the coffin started to pulse and shape itself into different form.

"Fufufu." A dark voice echoed across the room sending shivers down everyone's spine.

The mass of black mana that the coffin was transformed itself into a tall humanoid figure with a pair of black bat-like wings, two black horns on its forehead reaching towards the sky, clawed hands and a long arrow-tipped tail. The creature had pale skin covered by a black coating of what could only be black mana given shape. The creature's face was covered in black lines and wrinkles and its teeth were sharp, pointed and black in colour while its irises were red.

Despite having never seen this thing in his life, with the reaction from his grimoire and the cold bitterness of its mana, only one word escaped from the young half elf's mouth.

"Devil."

---

"Fufufu." The devil laughed now having its body summoned into the real world.

"Although its still incomplete, having a body after 500 long years is truly amazing. Ahh, what a wonderful feeling." It chuckled indulging in its new body.

[Thunderclap and Flash]

No longer able to hold himself back, Grim went on the attack and flashed in front of the Devil and swung his sword at the creature's neck.

"Go away."

!!!

*FWOOSH!!*

Blown back by an unknown force, Grim's body shot backwards and slammed into the wall on the far side of the room.

*BANG!!*

"Argh!"

Watching that short exchange, both Yuno's and Patry's eyes went wide.

'He made his words a reality!'

"Fufufu." The devil started to laugh again amused by Grim fruitless attempt.

"To think that I'd actually witness the child of a human and elf in this era. This world truly is a paradise."

Focusing his attention on Patry, the devil opened its mouth-

"I know right." Grim's voice resounded catching him offguard.

"This world really is fun!!"

*BOOM!!*

Suddenly releasing a burst of mana, the coldness in the room brought along by the devil's appearance seemed to rescind a bit.

"Hoh?" The devil looked at him with interest feeling the change in mana around them.

'He pushed my mana back... what a interesting child.'

"Come here."

*FWOOSH!!*

Brought before the devil by the same unknown force that sent him away, Grim's eyes enlarged as he saw the devil's hand reach towards his face.

*Grins*

!!!

Seeing the smile on the boy's face, a sudden sense of danger gripped the devil's heart as he saw a flicker of light emerge on the boy's body.

"EXPLODE!!"

Combusting his blue fire magic enhanced by his elven power around his body, the power of the explosion was enough to wipe out the entire room and forced both Yuno and Patry to defend themselves lest they be wiped out with the rest of their surroundings.

"ARRRGHHHHHHH!!!!" The devil screamed receiving the blast at point blank range.

'IT HURTS!! THIS ACTUALLY HURTS!!'

Blown back from the explosion's shockwave, similar to what had happened to Grim, the devil's body was slammed against a wall at the far side of the room.

"Ah... Ah..." The devil croaked while smoke emanated off its body.

'That boy!! Something's wrong with his magic!'

"He-al."

*Sizzle*

"Ahhh..." He groanned as the wound started sizzling and became smaller.

'I'm healing but... The pain is still there...'

---

Looking at the devil who had been flung away by his explosion, Grim levitated in the air and looked down on him.

'It can heal?'

*Grin*

!!!

"Damn you... DAMN YOU!!!" The creature screamed enraged by the clear disdain on the boy's face.

Having never faced a devil before, Grim's heartbeat quickened as he wondered just how far he could push its limits.

To that extent, he raised his sword high above his head.

[Rengoku]