"JUST DIE!"

"You First!"

The two titans of good and evil continued to battle in the skies above. Hundreds of Quirks clashed together with each blow, each one mimicking the attack of the other. Whether swings of fists, or blasts of fire and ice, All for One found each blow rivalled by his Nemesis.

'This can't be happening!' All for One tried to piece together what had gotten him into this current situation.

First, his other self had unwittingly fused One for All with an inferior version of their Quirk, turning it into some sort of ridiculous fusion of the two. Then he must have been given his brother's Quirk without realizing, and somehow managed to let his own stockpile of Quirks be taken out from under him. And last of all, they had transferred those Quirks to possibly the most poetically annoying candidate imaginable.

"Why do you always insist on being such a damn thorn in my side!" All for One shouted, bringing all four hands together to shoot an energy beam at the Hero.

"Because getting in the way of Villainy is a Heroes calling!" All Might shouted back, shooting back a beam of his own. The two attacks collided, and much to All for One's horror, the attack was not an equal clash. He could see his own attack being slowly forced back.

'It's that damn device of Shield's!' All for One cursed under his breath. He knew he should have broken the thing completely when he had Midoriya in his grasp. Now, they must have gotten David Shield out of the alien's prison and fixed the device. It obviously wasn't at full power, but it still gave All Might enough of an edge to push All for One even in this form.

Currently, All for One had two options open to him.

The first option was to attempt to outlast him. The main reason for All Might's strength is the massive amount of energy from One for All that is boosting him and all his Quirks. But that amount is limited, and even when boosted by the Quirk Amplification Device, it will run out eventually. Once One for All is run dry, All Might will only have the Quirks from his other self to rely on, and he would flounder against someone as experienced with using multiple Quirks as himself.

But the only problem with that, is he might not have the time to wait so long. He had no idea how long All Might could go for, especially with the Q.A.D. expanding that power. In the meantime, Star could somehow make her way back up and use New Order on him now that All Might had the power to create an opening. Or Midoriya could beat his other half and make is way up to this fight. All as One was a complete wildcard to him now.

Not to mention Nezu poking around in the Main Facility's system and potentially finding who knows what.

The second option was to find a way to even the odds. Unfortunately, the only other Quirks nearby were All as One or New Order. The latter had a good chance of taking his own Quirks that he had yet to integrate into his Demon Lord form from him. And the second… was proving hard to reach.

"I wouldn't look away if I were you, All for One!" All Might shouted as he threw another punch, and All for One reluctantly looked back up from his searching of Star.

Star kept appearing and disappearing from his senses. It seemed like she was doing her best to remain unfindable by him, even at the detriment to herself by sacrificing her limited Rule's to remain hidden instead of fighting off the poison he had infected her with. She knew he wanted her and wasn't going to make it easy to do so.

'Guess I'm stuck with the first option.' All for One sighed as All Might raised a fist again.

"COMPOSITE TEXAS SMASH!" All Might shouted, as he punched forward, send All for One buffeted back. He likely used Spring-like Limbs and Air Cannon to boost its air pressure effects.

All for One let out a sigh as he tried to find a new combination of Quirks that could take out All Might. Any poisoning or otherwise deliberating Quirks would be useless, as All for One purposefully went out of his way to get Quirks to also counter said effects (it's how he was able to steal most of them in the first place). Raw power was clearly not working either. He was able to use Genetic Manipulation to use more Quirks than All Might, but that bonus barely measured up to the excessive strength of One for All.

There was technically a third option available to All for One, but that was a plan of last resort. He wouldn't go through with that unless there was absolutely no hope of defeating the Heroes and regaining control of the Main Facility.

Frustration bled into him from his other self, and he realized that his window for victory was quickly closing. With only embers remaining, his other self could only hope to keep Midoriya and All as One busy for as long as possible while he tracked down Star.


"Is that all I am now?! A distraction?!" All for One seemed to shout at nothing, but Izuku could figure that he was communicating somehow with the other version of him up above.

"I guess your Quirk was all you were good for to him." Izuku replied. "Trust me, I know how it feels to be judged based on your lack of Quirk."

"You-! You're the reason I don't have my Quirks anymore!" All for One shouted, shooting a fire blast from his palms. Izuku blocked it with Air Wall, and the attack slowly petered out after a few moments. More cursing could be heard from Kagome's mouth. "Damn you! How did you do this to me?!"

Izuku replied coolly. "You're a smart man, I'm sure you can piece it together. Unless you made up for your intelligence with Quirks. In which case…"

"How dare you!" All for One shouted, as his right arm transformed into a mass of mouths that snaked towards Izuku. But they were all countered by Hydra's and were then sliced with Laser. "You gave me my brother's Quirk. You managed to separate it from the core of All as One, and then gave it to me earlier instead of stealing a Quirk."

"I gave Bestowal to Kagome." Izuku clarified. "Along with enough of the Q-Fields within Stockpile to fight against your will."

The fact that Izuku could also give the raw power from within the Stockpile along with the Quirk was the only reason that their plan succeeded. Normally Bestowal would have been unable to fight against the power of All for One by itself, removed from the power it had as One for All. But after pushing enough power into it, their strength grew enough to complete their task.

Just under half of the stockpile, to be precise.

It was a permanent removal of power. Izuku would have to wait years for the Q-Fields stored inside to build up to that level again. But it was an easy sacrifice to stop All for One for good.

"I suppose you never knew what having a Quirk forced onto you would feel like, huh?" Izuku asked. "You had your brother's Quirk and didn't even realize it."

"But how did you take all of my Quirks inside All for One? That shouldn't have been possible! Their wills were completely subject to my own!" All for One demanded.

"That may be so for your original self, but you're just a copy." Izuku said. "With Scanning I could tell the Q-Fields coming off you were unruly compared to your real body's Quirk. Whenever you called on a Quirk there was a tug in your colors. As if the Quirks inside were fighting you, just barely. Now tell me, if they were given the opportunity of staying with you, or joining a group of Heroes dedicated to stopping you, which do you think they would choose?"

"That's ridiculous! Even my own ability was weakened?!" All for One seemed in disbelief that his own powers weren't completely infallible. "Wait, group of Heroes? You only gave me my brother's Quirk."

Izuku grimaced. "Maybe. But it is also the Quirk that is responsible for carrying along the wills of the previous Heroes, while Stockpile took the Quirks. Meaning that the wills of all the previous Holders went with him."

"Oh, so that means you truly are alone against me now?" All for One said with a smirk, trying to intimidate Izuku, yet finding no faltering in his opponent.

"I'm all that's needed to beat someone at your level." Izuku replied.

All for One nearly exploded at the comment. He shot forward to attack Izuku, but Izuku summoned forth Hydras to knock All for One back. His power on all fields were weakening as he was forced to counter Izuku's attacks. After a few minutes of striking back and forth, Izuku pushed forward.

Izuku summoned a web of Blackwhip and attempted to grab All for One. "How many attacks do you have left before you run out of offensive powers? How long can you run and block before your defenses have vanished. How much damage do you think you can take before Super-Regeneration vanishes?"

"You wouldn't! You want to save Kagome, not kill her!" All for One cried, almost as if pleading for his life.

"That's right. I do want to save her." Izuku declared, as a strand of Blackwhip wrapped around one of All for One's arms. "Most other Heroes probably would cut their losses and kill you. The previous holders would have. But I wouldn't."

All for One laughed as he broke the strand of Blackwhip with an Ice Quirk. "Because you're soft-hearted. You've grown top rely on All Might like everyone else!"

"No." Izuku denied, as more strands of Blackwhip wound around to grab at All for One. "I could have killed you earlier, even without All Might. But I didn't. Because that's the kind of Hero I want to be. I want to be able to reach out my hand and save everyone. Doesn't matter if they're Quirkless, or a Villain."

"How noble. Do you plan to keep me locked up in Tartarus once I've used up enough of my Quirks? That doesn't sound much like saving to me." All for One mocked, throwing the Blackwhip's off him once more with some sort of Shockwave Quirk, spreading his arms wide.

"I told you before, All for One. I'm going to destroy you more thoroughly than All Might ever could." Izuku started as the web of Blackwhip charged red with Fa Jin's power, and he crackled with a cyan energy. "Get ready, Nezu!"

'Overclock + Gearshift + Cellular Activation x2!'

In the blink of an eye, Izuku was now in front of All for One, still outstretched from throwing off Blackwhip. The supercharged cage of black and red energy was wrapped around All for One completely before he had even realized it had happened, and then Izuku ran.

He sped out of the great domed room and down the hall to where Nezu and the others were. Barely a second had passed since he had grabbed All for One, and he had already made it halfway down the hall. Izuku just kept running, at a speed that one could be forgiven for thinking he stopped it. All the energy of All as One was being pushed into going as fast as possible.

Izuku felt a blazing heat in his head as Overclock ran his brain faster than any other human ever had before. He felt the oxygen in his body evaporate as his body ran through its fuel almost immediately. But he ignored the pain, using the two copies of Cellular Activation produce more oxygen and push off his collapse for another fraction of a second.

'Come on! Keep going!' Izuku commanded himself, continuing to put one foot in front of the other. If Overclock or Gearshift deactivated for even a moment, All for One will have enough time to realize what was happening and retaliate.

The doors to the room that the others were in were just ahead, and Izuku stepped through them. Despite moving at breakneck speeds, Overclock made it all feel like a jog. A jog from Hell due to the literally choking pain, perhaps, but the speed he perceived it all was entirely manageable.

So, when he stepped through the threshold to the room, he glanced around. Everyone was pushed against the walls, trying to keep their distance from the glowing center platform. All except Nezu, who seemed to ready to push a button down on the console next to the platform.

He stepped up to the center platform, swinging the dark net containing All for One around over it. The platform was what they used to remove people from the alien's prison, and it was what they would use to put All for One in it.

'Come on Nezu!' Izuku pleaded.

The principal just needed to press a single button. But even with his predictive ability, he unfortunately couldn't calculate exactly when Izuku would appear in front of him. Meaning he was relying on his (admittedly impressive, to humans) reaction time. But that wasn't fast enough.

As Izuku watched out of the corner of his eyes as Nezu's hand slowly lower to press a button, he also noticed Fa Jin's power begin to disperse from Blackwhip. He tried to use some sort of Quirk to keep All for One in place a moment longer, so of course his body chose that moment to lock up.

'Crap! Not now!' Izuku's vision blurred as he felt himself unable to breath. He had pushed his body to the limit and didn't even have the fuel to move currently.

Black whip also faded now as the world slowly began to speed up, and All for One began to understand what was happening around him. Izuku could see Radio Waves begin to appear in one of All for One's hand as it slowly bent down towards the platform.

All for One didn't have Air Cannon to boost its effects over long distances anymore, but if that hand made direct contact, then it would completely disable the alien tech, including the trap for All for One. And with Izuku struggling to even breath currently, the Villain would be able to slaughter everyone there with ease before taking him out.

'No… There's nothing I can do!'

Izuku couldn't move an inch. He could only watch through blurry eyes as All for One's hand reached closer to it's target faster than Nezu's.

Until it stopped completely.

Izuku swore he saw All for One look to his hand in confusion a moment before Nezu pressed his button and Kagome's body was engulfed in a wave of light.


All for One opened his eyes, only to find he was currently missing them. Despite that, he could 'see' around him perfectly, including the fact that he was currently growing out the side of a very awake now Kagome.

"Ah, so my brother's Quirk gave you enough of a will to stop me for just a moment." All for One realized with a sigh. "If your timing wasn't so terrible, I'd almost be impressed."

"Fuck you!" Kagome said succinctly, attempting to spit at his damaged face.

He avoided the projectile, before wrapping an arm around Kagome, much to her discomfort. "Now, now. Don't be like that. After all, you're going to be stuck with only me for a good long while."

"What do you mean? Where the hell are we?" Kagome asked, looking around as she continued to push against his grip.

Kagome and her unwilling tagalong found themselves 'sitting' in a great white void. There was nothing around them but the infinite void and the blank shades of the few Quirks that had yet to be burned away from use.

"We are within the same cage that the alien had trapped the rest of humanity in. That meddlesome brat managed to trap us in here. I can't believe Nezu managed to understand so much of this system so quickly." All for One grumbled to himself.

"So that means we won, right?" Kagome asked.

"We?" All for One laughed. "Are you including yourself in the Heroes side now, Kagome Mirai?"

"What can I say? I like being on the winning team." Kagome replied.

"Well then I hate to be the bearer of bad news, but you're not winning no matter what team you're on." All for One said with a snide smile. "As far as I see it, you're either stuck for eternity in this void with me, or dead once my other self kills everyone and finds a more suitable vessel for myself."

"Your other self? Don't you mean the real you?" Kagome shot back "I'm sure if he by some miracle won that he'd see you being out of the way in here as a nice way to tie up loose ends. Especially after you lost all your Quirks like a fool."

"YOU-!" All for One lunged at his host, only to stop himself inches from Kagome. He took a deep breath before speaking again. "No. It would do no good to act so self-destructively, after all. Even with my brother's fraction of power left to you, you're still my puppet."

"No." Kagome said.

"No?" All for One looked down confused.

"Midoriya said to you that he would absolutely destroy you and save me." Kagome said. "And I could feel through your truth detecting Quirk that he meant it. So, I'd stop playing with me and start worrying about your impending demise."

All for One couldn't help but snort, before devolving into full-blown laughter. "You don't still think that he'll be able to save you? Look around you! Who is here to save you right now!"

As if to answer All for One's question, a static sound began to play, and a part of the void near to them blurred into a wave like form. A few moments of the static clearing, and a voice eventually could be heard within it.

"Testing, testing. Are you reading this, Ms. Kagome?" Nezu's voice rang out into the void. With his words, the wavelengths in front of them changed shape to match, as if it were a speakerphone of some sort.

"Nezu?! Is that really you?" Kagome asked in disbelief.

"Great… the Rat's here. And I thought being stuck in limbo couldn't get any worse." All for One griped.

"Oh good, you both can here me. This will make things easy." Nezu said cheerfully.

"Are you here to attempt to negotiate a term of surrender, Nezu?" All for One asked.

"And why would I need to do that, you embodiment of everything I hate in humanity." Nezu asked as cheerfully as before, despite the juxtaposed declaration.

"Oh? Is that not your plan? Use my current predicament to get me to give up Kagome's body?" All for One asked, not rising to the barb. "Or are you just here to gloat over your victory?"

"The latter, mostly." Nezu answered, much to both their confusion. "I know you would not keep to any deal we could possibly make, not that we have the leverage to make one. I checked the system, and it does not have a way to delete Quirks. It can transfer them, but then we would merely be transferring a tumour from one patient to another. I see that there is something about External Units for storage, but considering your control over alien technologies, I hesitate to put you in anything connected to it."

'Of course the Rat had already checked all possibilities.' All for One let out a sigh as another plan went down the drain. If he had been placed in the External Unit like he had been when removed from his original body at the start of his deal with the alien, then he would have a direct connection to the Controller system and would be able to order his brain to be 'installed' into the core of the Main Facility, taking it over.

Unfortunately, Controller operated on electromagnetic brain waves. Meaning despite the Organic Storage Unit being connected to the alien network, his current status as converted pure Q-Field energy didn't give him any control.

"Um… Mr. Nezu. You don't plan to keep me trapped in here forever, right?" Kagome then asked, worry clearly seeping into her voice.

"Certainly not! Forgive me if I've given off that impression, but I'll have you free of this pest and out in just a minute." Nezu assured her.

"I'm sorry, but did you not just finish explaining that you couldn't get rid of me? You know it's not well to give a lady false hope." All for One cut in, but Nezu let out another laugh.

"I said that we couldn't get rid of your Quirk." Nezu quickly clarified. "But you see, your Quirk itself isn't the issue at hand. The real problem is that disgusting little thing growing on it, making all that noise. But fortunately for you, I found a way of keeping unruly things in line."

'Not the Quirk?' All for One thought stared in confusion at the projection of Nezu's voice, only to reel back as the edges of the void surrounding him and Kagome suddenly opened, and a flood of red energy leaked out.

[Subjugation of detected pseudo-personality has been initiated.]

The energy wreathed towards them on all sides, reaching forward like dozens of red tendrils. One of said tendrils wrapped around a shade away from them, and the red began to bleed into the blank figure. As soon as the crimson glow completely covered the shade it began to dissipate, until nothing remained.

"What the fuck?!" Kagome screamed.

Nezu simply chuckled. "I found this useful command in a list of previous actions. It appears the alien attempted to use this command on All Might before One for All transferred over. Unlike them, however, you have nowhere to run. It should kill any personality that happened to have been built up in the Quirk but do no harm to the holder itself."

"No!" All for One cried as the remains of his centuries work crumbled away around him. The approaching energy washed forward like a river of blood, swallowing all it touched. "Nonono! Keep it away from me"

Nezu let out a content sigh. "Ah, this sounds like music to my ears. I knew setting up this communication was worth it."

All for One clung desperately to Kagome, his haughty mannerisms completely forgotten as the wave closed in. "Wait! Nezu, we can make a deal! I can give you anything you want!"

"I'm afraid you have nothing I want, All for One. The only thing I want is to hear your screams as you finally disappear for good." Nezu declared with finality.

The crimson energy finally swallowed the last of the shades, leaving just Kagome and All for One.

All for One turned to Kagome, attempting to push her down ahead of him. "You! Maybe if I remove my brothers influence from your useless body, I could take your mind in full! Just let me take you over completely!"

The red began to work it's way up Kagome's legs, but she pushed herself up with all her strength, and a bright glow began to cover her. The shades of the previous holders of One for All faintly appeared around her, as their lights joined hers. She wound back a fist as the light pooled into it, producing a rainbow glow. "I've always wanted to do this. Guess this is my last chance, so I better make it count."

All for One desperately attempted to push himself away from her. "Don't you dare-!"

"Detroit…" A rainbow fist slammed into All for One's face. "Smash!"

All for One was knocked back, and his body fell into the wave. It was slowly consumed by the red tendrils, and he only had a few moments to curse his fate before vanishing.

"Damn you All Might! Damn you Izuku Midoriya! Damn you Kagome Mirai…."

As the last of the cancerous growth of the Vestige vanished and the red energy worked its way up Kagome's body, she let out a sigh. The shades of the previous holders disappeared at last, and the red energy covered her entirely. She closed her eyes.

"This is my body, you bastard. And this is my Quirk now."

A moment later she opened her eyes, and she was back in an empty white void again.

Surprisingly, she noticed that there were two red balls of energy in front of her. Were they Quirks? She had thought they had all transferred over. She reached out to touch each with her hands, and quickly recognized them.

They were the two Alien Quirks. Genetic Manipulation and Controller.

Did they not get transferred with Bestowal like the others due to not having human wills to manipulate? Before she could question it further, Nezu's voice echoed out across the void.

"Alright Ms. Kagome, we'll have you out of there in a moment."


When the light faded, Kagome found herself standing in the center of an odd round room lined with pods. The rest of the people that All for One had abducted were there, although it appears that they had also released David Shield.

"Kagome! Are you alright?" Melissa asked first, walking up and offering a hand.

"I… think so." Kagome said, taking the hand and stepping down from the central platform. "I have control of my body again, and I don't hear that jackass whining in my head anymore, so that's a good sign."

Midoriya let out a sigh of relief through heaving breaths. "That's good… I was worried that it might… not work if you were to far gone."

"Are you okay Midoriya?!" Kagome couldn't help but ask Midoriya. He was hunched over, breathing like he had just run a sprint.

"I'm good, really." Midoriya insisted as Melissa returned to his side and rubbed his back. "Just need… to catch my breath. And get… the blood flowing again."

"Christ, kiddo. You can't go so hard with Overclock." Oguro lectured from the side. If it weren't for the fact that Izuku was struggling to stand currently, he looked like he'd smack him upside the head. "It runs your brain at a high speed by bleeding through Oxygen supplies. Trying to push the Quirk without any oxygen is like running an engine without any gas. You could do permanent damage going past the limit."

"Don't worry. Katsuma's Quirk helped to produce enough oxygen to keep it and Gearshift running." Midoriya waived off the man's concern, but Kagome wasn't worried about his loss of breath currently.

"Midoriya, I meant your body! Are you okay?" Kagome clarified, and Midoriya looked himself over.

"Oh." Midoriya finally realized, looking down at himself. "I guess it does look pretty bad."

Pretty bad was an understatement. The small pilot suit that Wedge had lent Midoriya was in tatters (at least the top was), leaving his chest and arms completely exposed. There were scars running along his chest and arms like veins, and plenty of dried blood around them. The parts of his pants that were bleached red also let on that the scars were all throughout the body. Most prominent was an X mark that centered between his eyes, running up into his hairline and across his cheeks.

"I know it looks worrying, but don't worry. Genetic Manipulation fixed everything on the inside to better than new, and Cellular Activation sealed the broken skin quickly. I feel fine, honest!" Midoriya kept insisted, and Melissa traced a hand along one of them, clearly not convinced.

"You should lie down and have Kagome look you over, just in case." Melissa insisted.

"Probably. But we don't have the time for a full checkup. Not until the battle is over." Midoriya replied sadly, before turning to Nezu. "I need to go up and help All Might. Have you heard any news?"

"Hmm? You still want to go and help, Young Midoriya? I think most would say that you've done more than enough considering the circumstances." Nezu asked.

Midoriya shook his head. "We're still not safe until All for One is beaten. And when I took One for All I took it as my responsibility to stop him."

"If you insist. It would be silly to stop asking for your help now, after everything else you've accomplished." Nezu shrugged. "Unfortunately, we don't have any info on what is going on up there. All for One appeared to start jamming communications consistently once he realized we could talk to each other all the way down here. It appears we are currently flying blind."

"Um… I might be able to help." Kagome admitted, and everyone turned to her. "It's just, I experienced the same things that All for One did while he was controlling me, and he was in constant contact with the real him up above. The communications cut off towards the end of the fight, but I learned a couple things that'll probably be useful."

"Well then by all means, share away!" Nezu insisted.

"First, I can confirm that your plan worked, Midoriya. All the Quirks that were stored within me were properly transferred to All Might, who was giving All for One a run for his money last I saw. I've got nothing but the two Quirks from the alien left." Kagome revealed.

"So that was your plan, Young Midoriya? How cunning. You have my admiration for such a feat." Nezu complimented his young student, before turning to Kagome. "It is fascinating that the non-human Quirks didn't transfer over though. I wonder why?"

"I figure it has something to do with having no human will to manipulate into joining the transfer process." Kagome guessed. "But back on the topic of the battle, I'm afraid it isn't all good news. Star and another jet got knocked out of the sky, leaving only one more flying, not that it could do much against All for One itself. Star got hit with some combination of Quirks that are keeping her from rejoining the battle. She appeared to be using her own Quirk to try and heal herself and remain hidden from All for One so he can't take it and turn the tides again."

"So, it's currently at a stalemate." Nezu summarized.

"But not forever. The extra energy I gave All Might along with the transfer will only last for so long until it runs out." Midoriya added. "And while I can probably help hold off All for One as well, none of my Quirks would be able to take him out. We need Star and Stripe if we are to win."

Nezu nodded. "My thoughts exactly. As soon as you are recovered enough, head back up and see if you can support Star and Stripe in using her Quirk on All for One. You'll have to be clever to create an opening, but I trust you'll come up with some sort of trick."

Midoriya nodded. "Understood."

As the young Hero finally stood up fully and began to stretch, Katsuma walked up from where he was sitting with the other children. "Um… Mr. Deku. You said you need to trick the bad guy, right?"

Midoriya nodded. "Yeah. Don't worry though, I'll be able to do it."

"I'm sure you will!" Katsuma agreed with a nod. "But… If you need some help, I know someone with a Quirk that could help! We can get someone back if they're related to us, right?"

Midoriya and Nezu looked at each other, before looking back at the boy.

"We can. What's this person's Quirk, and how do you know them?" Midoriya asked.

Next Chapter: The Final Battle