Earth 117

"I wonder if your allies would be startled to see you here, All Might," All For One said as he traded blows with the hero. "You so do love to be in the light. The sunshine radiating down upon you, illuminating you for all to see. But we both know the truth, don't we? You've always belonged here, in the shadows."

All Might slammed his first forward only for his nemesis to counter with a punch of his own. The two found themselves locked up, struggling to drive each other back, their knuckles aching and then beginning to crack as they tried to force more power into their limbs. They were in one of All For One's underground facilities, All Might having managed to stumble upon it… or so he thought. All For One had let him find him here, so that they might have their final battle here away from prying eyes. If you killed a hero before the public it did inspire fear, yes… but it also allowed others to declare they would take up the mantle. But it was such a better piece of song to kill him in secret and let him disappear. That would turn the symphony of triumph into one of terror and shredded hope.

"Only to drag you into the light and expose to the world who you are!" All Might declared, gritting his teeth.

"No no no," All For One taunted. "Don't lie to me, All Might. I know you far too well for you to do that." He tried to force the blond fool to the side but All Might had driven his heels into the ground, refusing to let up even for a second. "You belong in the darkness. Hiding away."

"You are the one that hides," All Might said, his best response which only showed how truly stupid All For One's foe was.

"And so do you. You ran and hid when I killed your beloved mentor." He saw the man's smile twitch at that and he knew he had him. "You hid from the world that you were a coward that left her to die."

"Never-"

"You aren't the light… the light is a lie. How do the Christians put it? In the beginning… there was darkness. That is the natural order of all things!" With that All For One gave just an inch. That was all. Just an inch. Enough to make the blond pest believe he had overpowered him… and lower his guard just enough.

With his free hand The Symbol of Terror lashed out, hardening his fingers with his recently stolen Steel Tip Quirk, making it into a spear that would pierce Japan's grinning messiah's side and tear through his stomach-

All For One's attack came up short, a firm hand gripping his wrist and stopping the blow a hair's breath from striking home against the flesh of the Symbol of Peace.

"You got the quote wrong," a distorted voice said, slowly forcing All For One's hand back. The villain tried to free himself only to feel greater and greater pressure on his limb, making him grit his teeth in pain. It was a metal gauntlet of some kind though he couldn't tell exactly what it was because the figure seemed to be living shadow, darkness that rippled and swirled about his form. Thanks to the inky blackness of the facility he couldn't tell. He just knew that he was wearing armor that clung to his form like ebony mercury."In the beginning-"

Suddenly the figure shot out his other hand, blasting All Might and sending him flying. All For One would have been pleased if not for the fact that the hand still wrapped around his wrist ignited into white hot heat. All For One cried out, trying to strike the man but he easily flipped over him, brief flashes of light at his feet the only sign that the man hadn't merely done it on his own. That caused the Symbol of Terror to find his arm twisted behind his back, which was only a mild pain seeing as at that moment every nerve in his restrained arm was screaming-

There was a blast of heat on his back and All For One fell to the ground… pressing the charred stump of his left wrist to his chest.

"-there was chaos."

"Who… who are you?" All Might said, reminding All For One even as he forced himself to stand again that his foe was still there.

"Symbol of Terror. Symbol of Peace. Dark… and the Light. Always feuding, pressing for gains or retreating from loses. The ebb and the flow" The figure raised his arm… and that's when All for One heard the rumble. It was their only warning before a beam of light burst through the ceiling above them, drilling into the facility from the Heavens themselves. Sun light cut through the darkness and with it came armor that flew to the figure, attaching to the black lithe melt suit he was wearing, encasing him in gold and blue battle armor, complete with a helm with blazing eyes. "I'm the one in the middle. The Gray. The Symbol of Change: Chaosbringer"

All For One leapt forward, hand reaching out to try and steal the man's quirk, whatever it might be, only to find the armor stopping him from activating his natural quirk, now allowing him to actually make contact with the figure's flesh. The intruder tilted his head in bemusement only for All For One to rear back and punch him with all the strength to level a mountain.

A clang filled the air.

"Hmmm… Kinetics," Chaosbringer said before wrapping his arms around All For One and launching the two of them into the air. Below them All For One heard All Might let out a cry of protest and leap after them but the armored figure had flight and that beat out strength-enhanced leaps every day.

That wasn't to say that All For One was a stationary player in that ride. He attacked at the figure, trying everything he could to tear off his armor so he might get to the soft core within. But he'd lost a hand and that instantly put him at a disadvantage, meaning he could only keep striking at the man, causing clangs even as they descended.

"Ah, Japan," Chaosbringer declared even as he kept his voice soft and low, letting go of All For One once they landed, allowing the Symbol of Terror to stand up and prepare for another attack. He held his arms out wide and looked about like a child viewing an amusement park. "I've been here only a few months but already it is so very special to my heart. After all…" he focused on All For One, "…it will be the birthplace of my revolution."

All For One glared at Chaosbringer. "Bold words… I've heard them many times. What follows them are always death rattles." He took a step forward… only to stumble. Something… something wasn't right. His toes were tingling… and there were pins and needles running through his right hand. Even his stump had stopped hurting…

"I was wondering when you'd feel it. I prepared all this just for you. Followed All Might… spied on him for weeks… waiting for him to find you. I so wanted to meet you and show off everything I made just for you. My superconductor gauntlets, able to generate heat equal to a blast furnace. Kinetic Armor able to absorb blows and actually use it to power my weapons. But my favorite part… are the microneedles I put all over my inner helmet."

All For One took another step forward only to sway slightly. He couldn't see well out of his right eye… everything was blurry. And what the man was saying… it was hard to focus. He dimly noticed drones flying about and realized they were cameras like the ones news stations used to record hero fights…

"The human body is so interesting, especially when there are healing quirks and longevity quirks within it. The body is able to undo so much damage that happens to it." Chaosbringer moved forward and All For One suddenly stumbled. "Eject poisons. Bullets. All sorts of nasty things. But… what if one were to introduce something natural? Something that made the body do what it was supposed to do. Such as… a blood coagulate?"

All For One fell to his knees.

"Allow me to explain what is happening to you right now," Chaosbringer said softly, barely louder than a whisper. All For One reached for him but his fingers weren't working properly. They felt clumsy and fat. "Your blood thinks it must clot. So you have sections of your veins drying up as we speak. Closing down, blocked up, until-"

All For One clutched at his chest in agony.

"You have a heart attack. But anything you have that might repair damage and allow you a long life should help, right? Except… this is all natural. The clots aren't attacked because they are a part of quirk is recognizing them as a part of you. After all, it doesn't reject a broken bone. So your body just creates more blood that has no where to go, repairs the heart just to make it spasm again." His veins were bulging out, making his body ache. "Or… that extra blood pushes those clots up up up, right along your spine until they reach your brain and then-" The left side of All For One's face went suddenly slack and he felt himself begin to drool on the ground even as his mind screamed in agony. "You have a stroke."

All For One fell onto his back, unable to standing, unable to do anything but try and breathe but he couldn't. He could barely understand what Chaosbringer was telling him.

"Over… and over… and over again. And your body just keeps healing so it happens again. That much pain… would drive a man insane. A perfect prison to let you live the rest of your life in." Chaosbringer patted him on the cheek before standing up. "Oh… one small thing I forgot."

A laser shot from Chaosbringer's wrist and All For One's gurgles were cut off… as the Symbol of Change sliced his head off.

"I never said how long that life would be," Chaosbringer said before raising his foot down, the last thing All For One's dying mind saw being his foot coming down to cave his skull and brain-