Inheritance

Author's Notes: Hey guys! It's ClashKMS here with a new fic! This is just an idea I've had in my mind for a long time but never had the chance to write it down. Just to make sure, I wrote this down all within 2 hours as a way to relieve stress, so I'm sorry if you find bad grammar. I'm keeping this as a fun project/oneshot unless you guys want more. Now, let's just get on with the story!
Disclaimer: I do not own Boku no Hero Academia

"Speech"

'Thoughts'

*Deep thoughts*

All Might had been the number one hero as long as anyone could remember. He was the idealistic hero that had never tasted defeat, the symbol of peace that never lost his smile, and the pillar of society that mustn't break. But now...

"I am finally certain after exchanging blows with you, All might..."

Izuku's eyes widened in fear and recognition.

"One for All no longer dwells within you."

Everyone watching the broadcast was rendered speechless. Not only had their belief of the ideal hero had been completely shattered, but they were also told that he was currently powerless.

"What you are using now are just the lingering dregs...The embers you left after you passed it on. And that power grows weaker each time you use it. A feeble light that will go out without even being blown on..."

Each one of All for One's words was like a knife stabbed into Izuku's heart. Izuku clenched his fist in guilt and shame.

*It's all because of me...It because of me that All Might's about to die!*

And at that moment...

"Midoriya Izuku!"

Izuku's heart stopped. He let out a gasp that he could not contain. A gasp that was full of dismay, desperation, and terror.

"He's the one you passed One for All to, isn't he?"

Bakugo and Kirishima were stunned, though the former not as much as the latter. They both turned to the gaping boy with disbelief.

"He came without any qualifications...It's as if you have no control over him at all..."

Midoriya felt hot tears streaming down his face. He couldn't feel anything except overwhelming guilt and anguish.

*It's all true, I didn't deserve One for all. It was all because of sheer chance and luck that I met All might that day. I wasn't worthy of his power, there should have been a much more suitable vessel besides me who should have gotten One for All.*

"You can die full of regrets, All Might."

That moment...

Izuku started trembling. Electric-green light began arcing all over his body, burning a blazing magenta mark on his entire physique. Izuku let go of all restraints, letting the raw, undistilled power of One for All course throughout his mind and soul. A ferocious roar could be heard throughout the city.

Izuku snapped.


All Might and All for One's massive fists simultaneously clashed, the entire terrain around them exploding by utter force of the impact. It was painfully clear which side was at a disadvantage.

"Impact Nullification!"

All Might's already weakened arm was severely mutilated by the cancellation of energy. He was blasted back while at a deadlock position of opposing fists. But still...He didn't give out. He put both feet on the ground. He was resisting with all his might, true to his name.

'That's right. As a teacher, I should have reprimanded him. No, I *have* to reprimand him!'

It was not just because he was the symbol of peace. He was driven by the fact that he needed to finish training his successor like his master did for him.

"I see...The weak embers that are already dying are still resisting, huh? They're desperately trying to stay aflame until they fulfill their duty..."

All for One's colossal muscle-bound arm flexed, administering yet even more strength to the immense force already being applied.

"How unsightly!"

All Might's arm was excruciatingly marred, and he couldn't help but let out a tortured cry. As he was explosively blown back once more...

Neon lightning descended with meteoric force. The meteor completely devastated the battleground, resulting in a minor tremor that caused a tornado to appear. As the dust cleared, All Might could see...

That Izuku, who was wreathed with a blinding green aura of power, had drop kicked All for One.

All for One blasted Izuku out of the way.

"How foolish of you to come here so brazenly, boy...Didn't you realize, that All Might was putting his life on the line for you to survive? If you die now, the entire legacy of One for All will turn into dust!"

All for One jeered at the 9th holder of One for All. Unfaltering, Izuku blasted his way towards the villain with stunning velocity as a burst of green light...

"Delaware..."

And landed an explosive smash.

"SMASH!"

All Might was blown away, figuratively and literally, by the amount of power and sheer battle prowess his successor was displaying. Jets of air were blown about by the collision, and the earth shook with every blow exchanged. Midoriya was a green blaze of lightning, showing immense destructive power.

*That power, it can't be...Is he using 100 percent of One for All's power with his full cowl technique?*

The intense battle continued. Both sides were giving heavy damage to each other, but Izuku knew that he would certainly lose if this continued.

*My body can't handle One for All's full power, I'm currently destroying my body from the inside. I won't last longer than 3 minutes at this rate!*

His body was slowing deteriorating, and it was starting to show. His body, unable to deal with the extreme stress, started to take the toll. His blood vessels started to break, his skin started to peel off, and his organs were becoming ruptured.
But Izuku didn't stop. Green flames shined from his determined eyes. He put on a shaky smile and looked back at All Might.

"It's...All fine! Why?"

"Young Midoriya..." All Might was speechless.

"Because...BECAUSE I AM HERE!" Izuku roared out, flying towards All for One once more, punching the villain with everything he had. All for One retaliated with a torrent of wind pressure, following up with a sideways strike to knock the boy away.

"You certainly show promise, boy. Your total power is definitely stronger than All Might's. But..." All for One raised his fist. "You are far too weak to fight against me yet." Izuku braced for the impact, but the blow never came. When Izuku opened his eyes, he saw...

All Might's broken body being blown away like a ragdoll.

Izuku's mind turned blank. He felt neither rage nor sorrow. His soul was in a state of numbing shock as if he couldn't believe his eyes. The flames from his eyes flickered out as his legs gave out.

"AHAHAHA! That's the face I wanted to see! That's right. The symbol of peace is now dead! Your precious All Might is gone! What are you going to do now, One for All?" All for One's mocking voice did nothing to aggravate Izuku. Izuku was already broken, just as All for One had expected. Tears were flowing freely from his eyes, but the boy didn't seem to notice.

"You should just give up and die now, Izuku Midoriya." All for One slowly walked up to the grieving boy, as if basking in his power over Izuku.

"Farewell, One for All." All for One's fist descended toward the helpless Izuku like a guillotine.


*Play OST: United States of Smash*

Izuku stared at the incoming punch, showing no intent to retaliate. But then...

*"Young Midoriya...You can, become a hero."*

Izuku suddenly remembered the words his hero had said to him, in the moment of his greatest weakness.

*'I want to become a hero just like All Might, the kind of hero that wipes away everyone's worries, always wins, and saves everyone with a smile!'*

He also remembered what becoming a hero meant to him.

*That's right, I can't lose here. Even if All Might's gone, I need to become the next symbol of peace to make him proud!*

In that split second, Izuku regained his will to fight. He raised a glowing fist just in time to block the fatal blow.

"So you recovered...You are not as weak as I thought, boy." All for One snarled. "But the outcome will not change!"

Izuku was blown back as All for One nullified Izuku's force. The villain's enormous arm towered over his.
But Izuku would not fall a second time. He regained his footwork against the ground.

*It's not just because I want to become a hero. I have to...I have to become what All Might was to me. To make All Might proud...I have to become the symbol of peace!"

Izuku and All for One halted into a standstill.

'Until then...' Izuku's body was wreathed with the aura of power once more.

"For you to resist in such an unsightly way..." All for One condemned.

'I can't!' Izuku's eyes were lit aflame.

"I miscalculated!" The villain shouted out.

Izuku arched his back as far as he could to evade the blow and struck out with an upward kick.

'I CAN'T DIE YET!' Izuku initiated a backflip, and All for One's arm was thrown back by the force of the kick. Then Izuku used the air pressure to change his momentum forwards, leaped into the air and flipped forward to bring down an axe kick.

"MANCHESTER SMASH!"

The attack delivered nicely and hit All for One square in the face, leave a crater in the ground. But...

"You're not yet used to the power. You can't even fully use it without being injured!" All for One held out his left arm and prepared an attack. "IT'S WEAK!"

Suddenly, an unexpected voice called out from behind.

"That's because...His back wasn't in it!"

*All Might?!*

Izuku's eyes opened wide. All Might was clutching his right arm, but he seemed fine otherwise. Even All for One looked surprised.

"Young Midoriya, Accept the last of this power!"

All Might outstretched his arm, and Izuku reached out backward in response. At that moment, time seemed to slow down.

*'One person cultivates the power and passes it on to another person, who also cultivates it and passes it on. It is the crystallization of power that spins together the voices of those who need help with a courageous heart.'*

Izuku had a flashback about the explanation of One for all.

*"Now, It is your turn."*

All Might's hand filled with an iridescent sphere of power.

*"Do your best, Young Midoriya."*

Izuku received the sphere and crushed it with his fist. He could feel the incredible power surge through his arm. His arm *exploded* in mass, enlarging to the size comparable to All Might's.

All for One noticed a moment too late, and he tried to stop the coming punch with a burst of an energy blast, but Midoriya evaded by leaning forwards. The misfire caused an explosion in the background, and at that moment...

"AAAAAAAAAAAAAAAARGH!"

Izuku let out a roar from the bottom of his heart. As he approached the flailing villain, he muttered out a parting.

"Farewell, All for One!"

He punched All for One with all he had, carrying the hopes of all the people who looked up to the symbol of peace.

"UNITED...STATES OF...SMAAAAAAASH!"
Izuku put all his weight into his fist, aiming the trajectory straight downward. As All for One made contact with the ground, The surrounding ground was completely leveled. The force caused an earthquake that was felt by the entire city, and the wind pressure caused a massive cyclone to form, making it rain.

The boy who came out victorious looked up to the side and let out a ferocious battle cry.

The battle between good and evil...was finally over.


Author's Notes: How was it? I'd be lying if I said that this was carefully planned out since I didn't even take the time to re-read it. Sorry, mid-terms are coming, so I needed to relieve stress. I'll probably edit this fic after mid-terms so I can enhance it. Anyways, SMASH that favorite button if you enjoyed or just want more, and leave opinions, criticism, and requests! This is ClashKMS, signing out.