Reborn In Black Clover With Demon Slaying Magic

[A/n: Been a while since I made a title pun]

"Return."

*BOOM!!*

'What!!'

Using his magic to stop and return the attack back to him, Grim eyes enlarged as he watched the blue beam of concentrated fire magic he shot returning back to him.

'What insane magic!'

[Sudden Throwing Strike]

Switching from orange to grey, the hue on his body solidified as two spinning swords flew through the air and towards the beam.

"Fall."

!!!

*BANG!!*

"AGHHH!!"

Pulled down from the sky by the same unknown force that had been targetting him, Grim's face and body slammed down against the ground with enough force that it created a crater.

"Be CRUSHED."

"ARGHH!"

"Be SQUASHED!"

*BANG!!*

"ARGHHH!!!"

"Be BROKEN!"

*BANG!!* .

"GYAHHHH!!"

Listening to his screams, the devil began to laugh loudly as it made its way into the sky. Looking down on him from his position, a sense of superiority burst out from its heart as it opened its mouth once more.

"Storm of swords."

"Fall."

*SWOOSH!!*

*SWOOSH!!*

*SWOOSH!!*

*SWOOSH!!*

Using [Hyper Focus] to sense what was going on around him, sparks of lightning flashed around Grim's body as he pushed his mana outwards.

"I. *crackle* WON'T. *crackle* FALL!!"

*BOOM!!*

Unleashing his mana again, countless numbers of lightning snakes slithered across his body as he dug his feet into the crater and executed the only spell fast enough to get him out of this situation.

*ZOOM!!*

Activating his spell to its fullest, his body flashed forward and avoided the numerous blades that stabbed into the ground mere moments after he moved.

Watching him evade the swordsd from above, a small frown surfaced on the devil's face.

'He did it again. Although it was only momentary, he managed to force away my mana that was holding him down.'

[x2]

*ZOOM!!*

Charging forward with [Thunderclap and Flash], an enraged Grim suddenly activated it again but instead of using it to turn, he shot upwards and appeared behind the devil.

"YOU PALE SKINNED ALBINO LOOKING PIECE OF SHIT!!"

[Breath of Wind]

Sensing his intentions, the devil opened its mouth once again.

"Begone."

Feeling that strange force manifesting around his figure again, Grim's grimoire shone with intense light as his body instinctively started unleashing its mana in full force.

[Break]

!!!

'He's gotten used to shaking off my magic! NO! HE'S NOT EVEN CONSCIOUS OF WHAT HE'S DOING!'

"DIE MOTHERFUCKER!!"

As if hearing the sound of something shattering, the devil watched as the green coloured blade slashed down its back.

[Claw Purifying Wind]

With his forehead pouring down with a fresh stream of blood and his sword held upwards towards the right side of his body, the moment he swung his sword downwards, four vertical green wind slashes resembling claws sliced through the devil's body seperating it into four different vertical slices.

*SLASH!!*

*SLASH!!*

*SLASH!!*

*SLASH!!*

"Ah-

"SHUT THE FUCK UP!!"

*SWISH!!*

*SWISH!!*

*BANG!!*

Taking advantage of the fact that he was using [Breath of Wind], Grim didn't give the devil the time to scream as he conjoured up a strong gust of wind to help accelerate his body to perform a double 360 spin that transitioned into a fast roundhouse kick that slammed all four vertical slices together and catapulted them away.

---

'What am I watching...'

Watching the fight from the ground level, both Yuno and Patry were at a loss for words as they could not even describe what they were witnessing.

---

PAIN!!!

*CRASH!!*

Pain like it had never thought was possible. Having its body split in to four slices was bad enough, but to then have all those freshly cut slices forced back together by a kick was something else! Crashing into the ground from his kick, the moment all four parts touched each other they fused back together making him whole once more.

But even after healing himself and fixing his body, the sensation of having his body being cut into four different pieces lingered as if it was ingrained in the devil's body. It was bad to the point that he understood what he was feeling was no phantom pain. Something about the boy's magic was breaking its body down and forcing it to remember the pain.

'Shaking off my magic-

able to cause me a DEVIL to feel pain-

breaking my body down when inflicting wounds on it to the point that healing can't fix it...

This boy's magic... Whatever it is, it seems to target everything that makes me devil!'

'But compared to the explosion earlier, the pain I felt from that sword touching my body was far greater! Even if I can't avoid his long ranged attacks, I musn't allow that sword to touch me directly.'

Realizing the nature of Grim's magic, a shit-ton of schemes flashed through the devil's head as it stabilized itself on the ground.

'Before making any other moves, I need to secure my grimoire in this wor-

*BANG!!*

Manifesting by his side with his fist covered in bright blue flames, Grim didn't hold back as he proceed to bombard the devil with a barrage of lightning fast punches.

*BANG!!*

*BANG!!*

*BANG!!*

*BANG!!*

*BANG!!*

*BOOM!!*

*BOOM!!*

*BOOM!!*

*BOOM!!*

With every strike that landed on its body, it was like a minature explosion had taken place as the entire room shook from the impact.

"Go... awa-

*BANG!!*

"ARGHHHHH!!!" The devil screamed as it was blown away by an enraged punched to the face.

*FWOOSH!!*

*Screech!!*

'IT BURNSSSSS!!!' He cried internally while digging his soles into the grown to slow its backwards momentum.

Unfortunately for him, while Grim was punching him, he had dug his thumb into one of his eyes causing the flames on his fists to seep into his body and burn it from the inside.

The pain was unlike anything it had ever experienced before. To feel your body burning from both the inside and the out. For a creature from the underworld, it was ironic that it compared this sensation to a living a hell.

On the brightside, it was fortunate that Grim had only used his fists instead of his swords.

'How is this possible!' He spat.

The fact that he had no grimoire and was feeling pain for the first time made it so he couldn't fight at 100% of his ability. And then there was that weird feeling he occasionally felt. Like his mana was being pushed back against.

But even so, regardless if the boy's magic opposed him, he was still a high ranking devil! There was no way he should be getting treated like this! Especially not by the offspring of the two races that he had manipulated... THAT'S IT!!

Knowing that he needed to draw Grim's attention away from him long enough to escape, he remembered the whole reason he was able to reincarnate into this era in the first place.

Looking to the far side of him, the sight of a desperate Patry healing his fallen comrade entered his eyes.

*GRIN*