In MHA with JJK powers.

The battle inside the domain intensified.

Multiple attacks kept raining down on Mechamaru, showing no gaps in between.

Unfortunately, all of them were ineffective.

Mechamaru's green eyes kept moving all around, sending punches, flame attacks and kicks everywhere.

But none of his moves were useful.

Reason?

All Might kept intercepting him, every single time, blocking his attacks.

Suddenly various yellow threads spurted from the ground, instantly surrounding Mechamaru in a cacoon.

But in the next moment a metallic blade cut through the cacoon, followed by several slashes, breaking it into pieces.

Hero Best Jeaniat stared at Mechamaru with narrowed eyes, the fabric which was torn suddenly moved on its own, restraining Mechamaru.

Mechamaru's eyes glowed, the fabric was separated by a very small layer of infinity he had on.

He tried to move his body but the fabric restricted him.

Mechamaru was confused.

'What is this?....'

But in the next moment it became clear to him.

The flame proof fabric covered infinity, and infinity covered Mechamaru.

The reason his movement was blocked, was because he was using a very small layer of infinity which stuck right to his shell, he did this to confuse the heroes, they didn't know that they weren't actually hitting Mechamaru but infinity.

But now it became a prison.

It restricted his movement.

Mechamaru tried to move his arm but Hero Best Jeanist simply tightened his hold making him stop.

Of course the answer to the problem was also simple.

To extend the layer of infinity, making it larger, giving him more space to move.

But that would mean, exposing 'infinity' to the heroes.

Hero Miriko appeared beside Mechamaru and started raining down kicks on him.

Seeing her flurry of attacks, Mechamaru's eyes glowed.

The layer of infinity around him, widened, stretching the fabric which bounded him.

Hero Miriko's eyes enlarged, seeing her kick stop some distance away from Mechamaru.

The next moment, a metallic punch went straight for her chest.

With quick reflex she crossed her hands and blocked the attack, flying back due to the impact.

Turning in the aur she landed safely on the ground and said in a loud voice.

"What is that? A barrier?"

The heroes present narrowed their eyes.

"Is that the reason for his invulnerability? A hidden barrier?", Gran Torino examined, looking deeply at the circular invisible space which apeeared around Mechamaru, blocking Hero Best Jeanist's fabric.

"There is a trick to your power!", All Might said in a loud voice, staring unblinkingly at Mechamaru's barrier.

"And?"

Mechamaru's voice reached their ears.

"So what if there is?"

He took a step forward, making lava burst out.

"Even if you know, what can you do?"

The hero's expression hardened.

"You aren't the only ones learning, I just thought of something as well."

Mechamaru's eyes focused on Hero Best Jeanist.

"Instead of fighting all of you at once, I should do it one at a time."

Mechamaru launched himself at Hero Best Jeanist, rushing at him with amazing speed.

"We won't let you!"

All the heroes jumped at him at the same time, launching various attacks.

But Mechamaru ignored all of them and went straight for Hero Best Jeanist.

Hero Best Jeanist suddenly raised his arm sending waves of fabric towards Mechaamru, but they were all blocked by infinity.

Then in the next moment, Mechamaru's punch arrived before Best Jeanist, heading straight for his face.

At the end moment, a white flash passed through his vision, and Best Jeanist disappeared making his punch land on thin air.

Gran Torino.

He saved Best Jeanist in the nick of time.

But even if he didn't, All Might would have arrived in time.

After all, they were faster than him.

At this moment.

The realization dawned on him.

Mechamaru looked at the heroes in silence.

There wasn't much he could do against them if he simply kept using the abilities he had shown.

Standing still in place, his mind wandered thinking deeply.

"What? Feeling depressed? How about you surrender quietly? That way I'll only break one of your metal arms!", Hero Miriko shouted loudly, trying to incite him.

But Mechamaru ignored her.

At the same time, Gran Torino appeared beside All Might carrying, Hero Best Jeanist.

"Toshinori it seems our attacks are useless, there must be a way to bypass his barrier but we don't know that for now."

Looking at the dome that covered them, he continued.

"Let's break down that dome first and get out, capture his companions, and then think of a solution to his barrier."

All Might nodded, their original plan was to quickly capture Mechamaru while the other one on the outside would delay his companions, but with Eraser Head's weakness, they could no longer continue with the original flow.

So instead of wasting their time here, it will be better for All Might to capture the rest first and then think of a way to deal with Mechamaru.

With their anti-flame suits, Miriko, Gran Torino, and the others were more than capable of holding Mechamaru back.

With a loud sound, All Might kicked the ground and flew through the air, heading for the barrier.

The other heroes stood on guard, ready to stop Mechamaru from interfering.

But instead of moving, Mechamaru simply looked at All Might in interest.

'Did they really think they could break a domain? From the inside? Without cursed energy?'

He almost shook his head at their naivety.

With Gojo, Jogo, and many other's memories combined, his understanding of the domain was at its peak.

A domain is not something that can be broken with just physical power.

'Did they come up with the idea after watching Kurokai breaking the domain with a meteoroid?'

In the first place, that was an act.

At that time his domain was not broken, instead, it was carefully retracted before the meteoroid could hit it, giving it a breaking-like effect for the onlookers.

But just when Mechamaru was about to launch another wave of attacks.

*Crack*

An unbelievable sound reached his ears.

Mechamaru slowly turned his gaze towards the sound.

And there he saw it.

Something which shouldn't be possible.

A gaping hole in the sky.

And for the first time in Mha's history.

A domain was broken.

----

Outside the domain.

A creepy smile hung on Shigaraki's face as he looked at Hero Mt. Lady whose left leg was completely decayed.

Fortunately because of her big size and due to Shigaraki's abilities not having evolved, she survived the move.

By now she has returned back to her original size, hiding behind Hero Pixie-Bob, breathing loudly staring at her decayed leg with an unfocused gaze.

Shigaraki laughed loudly seeing her state.

Though he wasn't without injuries either.

His body bled from various places, and one of his arms was even broken.

But it was all worth it.

Shigaraki looked at Twice who he managed to snatch from Mt. Lady.

He has regained consciousness and was looking at Shigaraki's state with tears in his eyes.

"Shigaraki because of me....you...."

Twice wiped his tears and looked at the heroes with hatred in his eyes.

"All of you....will pay...."

Just when Twice was about to use his quirk.

A cracking sound reached their ears.

"Oh is Mechamaru done already?"

Shigaraki smiled and turned to look at the diminishing dome.

Twice also stopped and stared at the dome.

The same was true for all the heroes and villains.

For a moment they all stopped fighting, looking intently at the result, which will decide the real winner of the event.

Even Dabi stopped attacking Endeavour and looked at the dome.

"You...."

Finally having room to breathe, Endeavour looked at Dabi with a confused gaze.

He seems familiar.

Little by little the domain collapsed, showing the inside.

Shigaraki casually decayed the earth attack which rushed to him and excitedly looked at the scene.

"Mechamaru you beat them so quic---"

Shigaraki stopped, his pupils constricted.

He couldn't believe the scene which appeared before him.

All the heroes were perfectly fine, standing straight.

But then how was it possible?

That the one on the ground...

Was Mechamaru?

He was brought to his knees, seemed to be barely supporting himself using his arm.

"A chance?", Rabbit Hero Miriko's eyes glowed, and with a quick step she instantly appeared before Mechamaru, aiming her kick straight at his lowered head.

But someone was faster than her.

Toga in her red armor appeared between them, barely blocking Miriko's attack.

"Mecha-chan!"

Toga shouted in a worried voice, her armor cracking under Miriko's kick.

Seeing her, Miriko smiled widely she raised her leg to send another attack but quickly narrowed her eyes and retreated back.

And in the next second, Shigaraki appeared in her place, a moment slower and she would have turned to dust.

"Mechamaru!"

Spinner, Magne, and Mr. Compass along with the nomu also arrived at the same time, looking at the fallen Mechamaru with confused eyes.

----

Inside Ua's dorm.

Every student of class 1-a cheered as soon as they saw Mechamaru on the ground.

"Look it's All Might!"

Kirishima pointed, at the same time, All Might appeared before the heroes, standing opposite the villains.

His straight back looked tall as ever.

They all cheered, along with the citizens of Japan.

All except one.

Kurokia.

He was currently covering his bleeding nose.

Suffering from the backlash of the domain.

But he wasn't just suffering from a simple backlash.

He used his domain via Mechamaru, and the consequence of it breaking was much greater than normal.

Fortunately, since he was shunned by everyone before, and sitting away from them, no one paid attention to his anomaly.

Kurokai looked down at the small pieces of brain matter in his hands.

This was the first time he had experienced it.

Such a severe feeling of pain.

It was indescribable like someone attacked his soul.

Painful to the extreme.

The corners of his mouth raised up and his face contorted.

The severe contrast in emotions resulted from the deliriousness of his screaming brain.

Using Gojo's reversed cursed technique, he healed his brain injury.

Then once again established the connection with Mechamaru which was broken before.

His eyes shone with cold eyes.

----

The League of Villains looked at the unmoving Mechamaru with worried eyes.

"Mecha-chan! Mecha-chan what happened?", Toga shouted in a cracking voice, crouching beside Mechamaru.

But she froze as soon as she saw his usual green eyes, suddenly become devoid of any light.

"These bastards! Mechamaru, what did they do to you?!", Twice shouted in a crying voice, looking at the heroes in hatred.

Spinner, Magne, and Mr. Compass remained silent, but their shaking eyes said everything.

Shigaraki stood still, looking intently at Mechamaru.

"Was it the dome? But then why is it different from last time?", All Might muttered in confusion, looking at the unmoving Mechamaru.

The heroes behind him looked excited.

"Toshinori there is no time to delay! Capture him quickly!"

Gran Torino said in a hurry staring straight at Mechamaru.

All Might nodded his figure flickered moving straight towards him.

He wasn't alone, all the heroes attacked the League from various angles, leaving no room for retaliation.

Just when Shigaraki was about to call Kurogiri for retreat.

A change happened.

And the first to notice it.

Was Toga.

She saw it when Mechamaru's dim eyes suddenly regained their light.

But before she could smile.

A terrible sense of dread spread throughout the place.

Stunning everyone.

The nomu's shook.

The heroes stopped.

Even All Might stood in place.

They looked in horror.

At the visible dark mass spreading out from Mechamaru's body.

Looking at the black calamity they all wondered at the same time.

Just what kind of crime, or heresy must have one committed to expel such an aura?

Then under their watchful eyes.

Mechamaru stood up from the ground.

The golden wheel behind him disappeared.

Raising his hand he formed a sign unknown.

"With this sacred treasure...."

In a voice indescribable.

"I summon."

Calling for something, no someone.

"Eight-handled divine sword divergent...."

A figure in white bounded by chains.

"Sila divine general...."

Which broke one by one.

"Mahoraga."

Revealing the divine general in all its glory.

Eight-handled divine sword divergent, Mahoraga.

With his naked feet, the divine general stepped on the ground.

"What is that?"

Walking straight up to All Might.

"A nomu?"

He stood before the greatest hero.

All Might looked up at the towering figure standing at ten feet and more than twice as muscular as him.

But size didn't equal strength.

Narrowing his eyes, All Might clenched his fist and suddenly sent a punch straight at the white monster.

But what happened next...

Made everyone hold their breath.

Because history was repeated.

All Might's punch.

Was blocked.

By the divine general.

Narrowing his eyes, All Might looked at the white arm that grabbed his punch.

With a push, he tried to pull it back, but Mahoraga held him firmly in place.

Just when All Might was about to use his full power.

A cursed sword extended from Mahoraga's right arm.

All Might's eyes shook, and a terrible premonition hit him.

But it was too late.

A sword flashed.

Severing All Might's right hand clean from his shoulder.

Shocking the world.