AN:

So, I'm hopefully getting this out decently after my last chapter, but who knows. Speaking of the last chapter, I hope you all liked it, I didn't get any reviews but I did get a good bit of followers… Anyways, I am still questioning whether or not to make the story I talked about in the last AN, so if anyone would be interested in it let me know! Before anyone asks, no I will not be making Izuku like the joker (writing this I realized I could easily do that but that's not the character I'm going for), around chapter 15-20 it should be more obvious what I'm going for .

PS:

Sorry, this took longer than expected, I forgot Jump Force came out this month and that has eaten up some of my time…

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Chapter 5:

"Wh-where's Cayde?" Izuku asked in a trembling voice, his eyes staring at the floor as his lungs took in a shaking breath of the tainted air that seemed to emanate from the man in front of him.

"Apologies, my dear boy, but Cayde will not be joining us." The masked man said as he stood before the trembling teen, his warped voice the same as the last time they met, the day Izuku would never forget "He outstayed his usefulness, so he was… disposed of..."

"Disp-…?" the green haired boy whispered to himself, his blood running cold as he realized what this man was implying "Wh-who are y-you?"

"I suppose we have not been properly introduced, have we?" the masked man questioned with a slight chuckle, watching the boy squirm in his presence "I am All for One, but you can call me 'Sensei'. I will be taking over your training; it is a pleasure to meet you."

"My… training…?" Izuku could not say he was pleased to meet this man; the aura around him was toxic as if the air itself was screaming in terror.

"Yes, Cayde, unfortunately, did not have the knowledge or skills to properly teach you further, so I shall be handling that personally." All for One stated as he turned and walked away from the frightened boy, only to turn back around and face him a few steps away "Kurogiri informed me that you seem to prefer using a staff, constructed from your light, correct? Why don't you go ahead and summon it?"

"R-right…" the boy mumbled, forcing his eyes up to meet the masked man as he created a glowing orange staff in his right hand.

"Hmm… We'll have to work on how quickly you can summon those, but we'll worry about that later." The crime lord said as he observed the swirling orange energy that made up the weapon "For now, attack me, I need to see what level you're at."

"O-okay…" Deku said as he dropped into the fighting stance Cayde had shown him before charging at his opponent.

"Predictable." All for One growled out as he grabbed the boy's wrist, stopping his swing prematurely, with a harsh twist that forced the boy to drop his weapon. The masked man punched the green haired boy in the stomach before tossing him to the side.

"I-I'm… not done…" Izuku sputtered out as he flew through the air, twisting his body as he threw a dagger of blue light at his new teacher.

"Oh? Speed enhancement times one, Insulation times one." the man muttered as he activated two quirks before catching the glowing projectile and casually tossing it to the side as the one that threw the weapon collided with the wall of the warehouse.

"Gah!" the emerald eyed boy gasped as he crumbled onto the floor before rolling onto his feet and sending a ball of white light towards his opponent's masked face. Seconds before the orb collided with the man it increased its intensity and broke apart, forcing the man to reel back in shock as a blinding light filled the room. Growling to himself, All for One refocused on his opponent, only to find the broccoli haired boy missing from his previous position.

"Bio-Sonar times one." The crime lord said to himself as he activated another quirk and scanned for the boy. Sensing the child above him, All for One glanced upwards to see his student falling towards him, a glowing blue staff in hand, as a cord of light dissipated behind him. "He slingshot himself up there? Impressive."

"Take this!" Izuku roared as he brought his weapon down, only for the elder of the two to strike his wrist with the back of his hand, sending the orange construct hurdling away, and grab the boy's neck with the same hand. "D-damn i-it…"

"I'll admit, that was pretty good", All for One sated before quickly jabbing the boy in the stomach and dropping harshly to the ground "but not good enough. We'll need to work on your speed, your plans are well thought out, but your movements and sluggish execution make them predictable."

"I… I couldn't even touch him… he didn't even move from that spot… h-he was just toying with me..." Izuku thought to himself as he clutched his stomach in pain, vaguely noting the man beginning to walk a few feet away again.

"You have potential", the masked man said as he turned around and faced the boy again, a stain of smugness in his distorted voice "with proper training, I believe you will make a wonderful villain, my boy."

"A-a vil-villain..?" the teenager meekly questioned, raising his head to look at the man with wide eyes, the pain in his stomach pushed to the side.

"Yes, a villain, why do you think I gave you these powers?" All for One questioned, a tone akin to joy dancing in his voice. "You will assist my successor as he aspires to change the world to his image!"

"… He's right… what else was I expecting…" the green haired boy thought gloomily as he dropped his back towards the ground, squeezing his eyes shut.

"Did you perhaps think that the heroes would come save you? That All Might would come save you?" the villain chuckled as he watched the boy squeeze his eyes tighter, tears threatening the edges of his eyes "Well, I have news for you, the heroes gave up the search for you months ago, nearly a year in fact. No one is looking for you, they abandoned you."

"... They gave up..? They… they just abandoned me...?" Izuku thought as his eyes snapped open, starring aimlessly at the ground.

"But I won't" All for One sated causing the boy to look at him "I gave you power, and I will give you more, and with my help you will show them how wrong they were to leave you behind! Do you think it was by chance that All Might was the one there on that day? He was the one to destroy your home. He took everything from you then just left you on the street!"

"He… he did?" the boy question, his eyes draining of the spark they once held, his voice pleading for the man to say it was a lie, even though, despite trying to convince himself otherwise, he knew it was true.

"Yes, my boy, he did. The villain he was facing had nowhere near the amount of power needed to destroy a build. If you'd like, I will have Kurogiri show you the proof later, but for now, let us return back to your lesson."

"… Right…" the green eyed boy said as he stood back up, his voice hollow, a knife of purple light assembling in his hand.

"Remember, focus on speed." The man said as he watched the boy calculate his plan of attack.

"… Whenever I'm sad, confused or angry, right Cayde?" Izuku thought as he threw his knife at the man, a smile cracking across his face "Then maybe I should listen to you instead… You were always brighter than me… heh…"

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"Where, the fuck, are you, you damn nerd..?" Katsuki Bakugou growled as he stared at a now familiar tombstone, the police having given up the search for his childhood friend and declaring the boy deceased "I know you're not dead. You're too damn stupid to die…"

The explosion user continued to stare at the piece of rock, as if expecting an answer. Crimson eyes drifted to the grave to his right, 'Inko' being the only word he saw before refocusing on his old friend's grave. The young Bakugou's nails dug painful into his palms as he clenched his fists, small plumes of smoke escaping from in between his fingers. Spinning on his heels, Katsuki turned away from the grave with a grunt.

"I will find you, and when I do, I want some goddamn answers!" the boy growled as he stomped away, his head dropping and his shoulders slumped.

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"Impressive…" All for One muttered as he watched his newest student disappear in a flash a speed, leaving a small cloud of dust and glowing, particles of light behind. "So, I present him with a problem and this is the solution he can make in just a week?" the man quickly raised his arm to block a kick as the boy stopped a step away, sending a quick glance around the room before attacking, but the boy hopped back and vanished once again before the man could retaliate, bursts of light randomly spawning across the room.

Izuku reappeared behind his opponent, a happy smile on his face as he scanned the room before he threw a blue knife at the man, only to blur away once again. The crime lord spun around, catching the knife before throwing the weapon at a seemingly random location. The green haired boy stopped as the knife flew in by his face, causing him to look at the man with wide eyes and a questioning smile.

"Not bad, if it wasn't for my Bio-Sonar, I would have had a difficult time keeping up with you. Without any speed quirks active at least." All for One said as he approached the stunned boy "Now, how exactly does that technique work?"

"It's actually pretty simple…" Izuku shrugged as his body relaxed, swallowing the primal fear echoing through his body as he learned to do around this man "I build up light under my feet and just release it in a controlled burst… I call it the 'Flash Step'…"

"So, it acts like a how powered spring board; you're not enhancing your base speed, merely jump from 'point A' to 'point B' at a blinding speed, much faster than the human eye can track."

"… Basically… I'm sure someone that specializes in speed could keep track of me, and I start having trouble with where I am after a couple steps in a row, that's why I stopped every so often…"

"So, you covered that weakness by using the time to attack while you gathered your bearings? Good use of your time, but we'll have to work out that drawback." All for One said, a grin spread across his masked face as he prepared for his student to begin once again.

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"We need to find him, Nezu…" the skeletal form of All Might said, as he stared blankly at a mug of tea, to the white furred creature sitting across the table, sipping his own tea.

"It's been nearly two and a half years, Toshinori…" the principle replied sadly, gently placing his cup onto the table "We still don't know if All for One really was the one to take him… If he was the one to responsible, why would he take the boy? What did he have to gain? I'm sorry, I know you asked me to figure this out, but there are too many unknowns… We don't even know if he would have kept the boy alive if he did take him…"

"So, what? I'm just supposed to abandon him? I should just give up on the search? He could still be out there… He could need help…" Yagi growled, unconsciously activating his quirk and shattering the glass in his hand.

"No, I'm not, but understand, even with my quirk, I can't do anything… There's just too much we don't know even know if the boy actually listened to you or if he just ran away…" Nezu replied solemnly, eyeing the shattered piece of the mug cautiously.

"…I… I know that, but… damn it… I made him a promise…" All Might relented, his anger fading as he dropped his head into his hands, his fingers flex as if they were trying to break straight through his skull "… You didn't see his eyes… how little hope they still had… how he looked at me with admiration…"

"I know, but… Have you given anymore thought to my offer? Perhaps it is time for you to find a successor, I have kept a teaching position open for you…" the animal said hopefully, trying to take the edge off of the man.

"… Maybe next year… I, uh…" the skeletal man sighed, gently pushing the shards together to make the mess easier to clean "I need to find closure first… I can't retire until I know for sure, but… maybe in a year or two, I can help teach…"

"Well, at least you have given it some thought!" Nezu said happily, as he stood up to go grab a towel.

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"We need to talk." Mitsuki Bakugou calmly said to her son as he slammed the door open, a sour look staining his face.

"No, we don't…" Katsuki growled as he tried to walk past his mother, only for her to grab his arm.

"Yes, we do!" the woman growled as she spun her child around to face her "I get that you are still upset, but you're grades have been slipping and your attitude has been getting even worse! Do you really think this is what Izuku would want?"

"What, the fuck, do you know, you old, fucking hag!" the boy roared as he ripped his arm out of his mother grip.

"You think I don't get it, you shitty brat?" the blonde woman yelled back, as tears threatened the edges of her eyes "They were like family to us, but acting like this won't bring them back!"

"'Bring them back'? That's the fucking problem! All of you just assume that Deku is dead… but, he's not, I know it…"

"And how do you plan to find him if you can't even become a hero, because with how you're acting, you'd be lucky to get into any hero school, let alone UA, with your attitude!"

"… I treated him like shit… so, now that he's gone… how am I supposed to just go around acting like a fucking saint!"

"I'm not asking you to act like a saint!" Mitsuki shouted again, before taking a breath to calm herself down "Just focus on your school work, stop picking fights with all the other students… Be the hero Izuku knew you could be…"

"…" Katsuki didn't say a word, he didn't meet his mother's eyes as he dropped his head and turned around, he had something to think about…