Prologue:

Quirks, the physical representation of the uniqueness of a single being. The individual trait that granted powers solely belonging to that individual. No one knows what caused them in the first place, just that they began to randomly appear beginning with a random baby in Quingquing, China. With a Majority of the world each inheriting a quirk, whether due to genetics or just being pure random, It saw to an explosive increase of those who would use their powers for their own selfish benefit. Luckily, the increase of crime gave birth to a new occupation, one dreamt about since as far as humanity can remember, being a Superhero. The creation of Superheroes allowed for a new way , in which those blessed with a quirk could utilize their unique power, as well as to make a living.

Quirks began manifesting themselves at the age of 4, however, there are those unlucky enough to show traces of having any quirks. Nowadays, with 80% of the world having a quirk, those who were once considered to be the normal, where now considered to be the abnormal and the unnatural. Treated by those as a lower class citizens by most around them, this minority was known as being 'Quirkless'.

A young boy around 14 years of age, known as Izuku Midoriya had messy green hair and dark green eyes, with four symmetrical freckles on his cheeks dejectedly made his way through an alleyway lost in thought as he reflected how he was bullied again for being quirkless, and dreaming too big for wanting to be a hero, as he clutched his recently burnt notebook in one hand, he began to mimic his idol, All Might, the number one hero's laugh, completely unaware to the presence sneaking up behind him.

"You'll make a great body suit!" a malicious voice cackled gleefully behind him, as Izuku turned to see a large slime monster charging right for him.

'W-what the...' A panicked Izuku thought upon seeing the villain, and feeling his entire body be engulfed by this thing's slimy nature.

"Hold still, it'll all be over soon." The slime monster chuckled as he began to suffocate Izuku, attempting to take over his body from the inside out.

'N-No way...' Izuku helplessly thought. 'Someone...please save me...' he desperately thought, rapidly losing oxygen and close to suffocation. 'Is this... How I die?' Izuku hopelessly thought, as he began to lose consciousness , completely unaware of his eyes flashing red, accompanied by a strange, black, comma-like marking slowly rotating around his pupil, as his eyes closed.

Immediately after Izuku lost consciousness, the sound of a blast could be heard as a huge buff man dressed in casual clothes of a stretched white T-shirt and green cargo pants, with two distinct bangs sticking upwards above his head, could be seen rocketing out of the sewers, capturing the villain in a bottle with one swift move.

Upon waking up, Izuku realized his surroundings and saw his all time favorite hero, his biggest idol and inspiration in life, All Might, standing before him.

'No way...' Izuku thought disbelievingly, "All Might! Can I get your autograph!" He yelled ecstatically as he scrambled, searching for his notebook, nearly fainted in shock after seeing it already signed.

"You handled yourself well, young man." All Might said with a thumbs up, "Now I must get this guy to the police." he said, gesturing to the bottle, as he stretched himself, preparing to leap away.

'No way...' Izuku panicked to himself, 'There's so much I need to ask him,' he thought as he grabbed the number one hero's leg as All Might took off.

In the air All Might noticed his extra passenger and said "Hey now...I know your a fan and all but you should really let go!" as he tried to grab onto Izuku.

"Are you crazy?!" Izuku yelled, looking fearfully up at him, "If I let go I'll die!" he exclaimed as he desperately held tighter onto All Might's leg.

"Ah...Good point" All Might muttered as he scanned the area for a place to drop off his passenger, silently cursing as he wiped blood that began to drip from the corner of his mouth.

The two landed on a roof nearby, with Izuku tumbling a bit as he frantically tried to keep his balance with his messy hair looking more disheveled than usual. He tried to contain himself, still shocked beyond words to have been in contact with All Might for so long.

"Thank you... I don't know what came over me to do that...but I wanted... no, needed to ask you a question." Izuku said as he desperately attempted to calm his nerves for what he was about to ask.

"I'm afraid I don't have time for questions right now, young man. A hero's life is a busy one and I must move on." All Might said to him, walking to the edge of the building, preparing to jump away.

"No wait please!" Izuku yelled taking a step forward, trying to reach out to All Might." All Might, Do you believe that it's impossible for a quirkless person like me to become a hero?"

"Hmm?" All Might paused, even though he was in a hurry, his words struck a chord with him. "Quirkless?" he asked.

"Yes..." Izuku bowed his head with his hands by his sides. "Ever since I was a small child, It's been my dream to be a hero." Izuku explained, his eyes filling with tears as he recalled all the frustration of being bullied, the anger of being alone, the sadness of not being able to achieve his dream, and most of all the helplessness of feeling less than everyone around him." Even though everyone keeps telling me that I will never be able to, Even though I'm quirkless!" his voice filled with hope, tinged with desperation, completely missing All Might's body beginning to steam. "Can I be a Hero like you?!" he yelled.

He raised his head, expecting to see his hero and to hear his response, but instead, before him stood the emaciated, sunken version of a man wearing a very baggy version of All Might's clothes.

"Wh-What the...Where did All Might go?" He questioned as he began looking around, in hopes of seeing where his hero went.

"I am All Might..." The man spoke, with an intense amount of blood gushing from his lips. Upon seeing his wide disbelieving eyes, All Might then told the story of how he was in an intense fight five years ago, that was kept out of public eye, and that half his respiratory system and his stomach was destroyed, causing him to only be able to be a hero for a short amount of time a day.

After hearing All Might's story Izuku was completely shocked. 'To think... someone could damage him so badly...' Izuku thought, horrified at what could have done that, but was brought out his thoughts by All Might's next words.

"To answer your earlier question..."He said, standing up. "Heroes risk their lives everyday, and some villains can't be beat without a power. You want to become a hero? Not without a quirk."

"W-What..." he muttered in despair at his idol telling him that there is no chance for him to be a hero.

"Dreams are all well and good to have kid." All Might stated as he began walking out the door to go downstairs, "Just make sure your dreams are achievable..." he finished as the door closed, leaving Izuku with a horrible, empty feeling.

"I always knew it was impossible..." Izuku dejectedly thought to himself, "I always knew everyone was right, but that if I kept at it hard enough, maybe, just maybe, there was a chance." he sighed as he made his way home, ready to finally give up on his hopeless dream.

He was brought out his depression by people's frantic voices and worried yelling as he looked across the street to find a villain attack in progress.

"Did I come here by habit?" Izuku muttered to himself as he ran across the street to see what was going on.

"What's wrong with the heroes? Why aren't they doing anything?" People in the crowd asked, as they became even more tense at the situation.

"They can't, apparently the villains taken a student hostage. It's been that way for a while" a random civilian said in response.

Izuku's eyes went wide upon seeing the all too horrifying villain that nearly killed him earlier. 'No way... Didn't All Might take care of that guy...?' He thought in worry as he made his way to the front of the crowd, 'This is my fault...' Izuku covered his mouth, with tears of frustration and shame at realizing that he was the reason for the villain to be free when he grabbed onto All Might's leg.

"Wasn't All Might fighting him earlier?" A random civilian stated." There's no way he could lose"

"Then why is that thing still here" Someone responded.

'Someone...please save them' Izuku thought in worry. His eyes widened upon seeing the face of the victim, His childhood friend turned bully, Katsuki Bakugo.

"Hey kid! Get back here!" Someone yelled to him, but Izuku couldn't hear them, having run towards the slime villain in a vain attempt to help save his friend.

'I'm no hero...' The emaciated form of All Might in the crowd watched this with even more shame and guilt as he ran out of transformation time that day.

Izuku screamed as he ran to draw the villains attention, unknown to him his eyes, flashed into a red eye with the black comma in it for a second, as the world slowed down to Izuku, allowing him to dodge a slime tentacle heading for him and to launch his bag at the villain in order to distract him so he could get close and try free Bakugo.

"Deku?!" Bakugo yelled in shock and anger. "What the hell are you doing "

"My body...It just moved on it's own." he yelled trying to keep a brave face, even though he was terrified on the inside and smile at his friend.

"Little pest, disappear!" The slime villain yelled in anger as he aimed one of his tentacles to hit the boy, and, as he closed his eyes, preparing himself for the pain to come, he felt no pain. Slowly opening his eyes he saw his hero standing there with his body blocking the blow and his smile unwavering.

At seeing this display, All Might forced his body beyond it's limits and leap into action. Even though his body was beyond agony, even though he was riddled with pain, he turned to Izuku, with his smile unwavering, and muttered "Even though I admonished you. I wasn't putting my words into practice. I'm pathetic" He yanked the fallen Izuku up. "Pros are always risking their lives!" he yelled as blood trailed from his lip as he let loose an attack with great fury

"DETROIT SMASH!" All Might yelled as, with one mighty swing the villain collapsed into small puddles, as the force from his attack changed the weather and Izuku and everyone else looking in awe.

As the panic died down, with everyone praising Bakugo for being able to hold out so long and admonishing Izuku for his reckless actions, he snuck away fro the crowd, unable to apologize to All Might for his foolish actions.

"Hey, Deku!" he was interrupted by that hated nickname, as he turned around to come face to face with his 'friend' Bakugo." I didn't ask for your help got that?!" he yelled, angry at the thought of useless Deku saving him." And what the hell was up with your eyes?!" He angrily questioned as he could have sworn for a second, Izuku's eyes changed color.

"My eyes...?"Izuku questioned confusedly.

Bakugo narrowed his eyes at that, realizing that it must have been a trick of the light he saw in the heat of battle. "Forget that! Just know you did nothing to help the situation and I owe you nothing. Got that!" He yelled as he ran off.

'That's Kacchan for you...' He thought with sweat drop, thinking about his hot-headed classmates actions.

"I am Here!" All Might yelled, surprising Izuku as he appeared from a corner.

"All Might!" Izuku exclaimed as he saw the blood spewing from All Might as he was forced to de-transform.

"Young man...I came to thank you, and to also discuss your question from earlier, If you hadn't been there, if you hadn't told me about your life, I would have turned into a man in a bodysuit who was just all talk... So thanks" All Might earnestly thanked Izuku.

"N-No, it was my fault he was there to begin with..."Izuku replied humbly. "I got in the way of your hard work and wasted all your energy, not to mention your time."

"I'm not done... You told me you were quirkless, yet, it was because It was none other than the timid, quirkless You at the scene that I was able to act. "All Might said seriously, trying to get the point across. "There are stories about many Heroes" All Might began with dramatic music playing in the background "How they became great...Most have one thing in common...Their bodies moved before they had a chance to think, almost on their own... And today... that's what happened to you... young man... You too CAN become a hero." All Might said in his true form with the sun setting behind him and Izuku crying upon finally hearing the words he's been waiting to hear someone say all his life, coming from the person he's admired the most.

"I deem you worthy to inherit my power, my quirk is yours to inherit." All Might's true form said seriously with Izuku looking at him up at him confusedly.

"What...?" He muttered at a loss of words.

"What's with that face?" All Might yell while laughing whole heartedly. "It was just a suggestion, don't worry, the choice is yours." As All Might made his way closer to the downed Izuku, he exclaimed, "Listen well, young man. You need to decide whether or not you will accept my power!" he yelled as blood continuously gushed out his mouth from the sheer force of his emotions.

'Wh-what is All Might saying...?' thought Izuku as he stared at the shrunken form of his idol.

"I'm talking about my power, young man. The tabloids called it 'superhuman strength' and a 'boost'... and I constantly dodge any questions related to it during interviews with a funny joke...Because the Symbol of Peace, All Might, had to be thought of as a natural-born hero, But young man, I will tell you the truth."

"My Quirk was passed on to me like a sacred torch!" he said grandiosely with his arms out wide

"It was passed on to you...?" Izuku said in complete astonishment." this changes everything we know about quirks!"

"And next, It is your turn. I can give you my abilities." All Might said.

"W-wait! Wait a minute!" Izuku exclaimed, panicked at the world changing information he just learned, "It's true that your Quirk is something heavily debated, so much so it's considered one of the world's greatest mysteries. Not a day goes by that I don't see someone talking about it online, But," Izuku stated, lost in thought of what he's been told. "I don't understand what you mean by inheriting or passing a Quirk... the thought of passing on a quirk is unheard of before, never even hypothesized before, Why is that? Is it because from the dawn of time a quirk like that has never been confirmed, In the first place it's..." Izuku trailed off, continuously mumbling all his theories and the possibilities.

"Sounds like you're overthinking this whole, inheriting thing..." All Might said as he stared upon the boy who continued to mutter nonsense. "Stop Nerding out!" he yelled. " I may hide a lot, but I don't lie." All Might said gaining Izuku's attention. "The power to transfer power, that is the Quirk I inherited!" All Might exclaimed as his hand gave off a brilliant glow. "The true name of my power is 'One for All'. "All Might said as it showed the same glow in his hand bouncing off many other different colored orbs as he further explained. " One person cultivates the power, and then passes it to another person, who also cultivates it, then passes it on and it continues to grow as it gets passed along... It is the crystallization of power that spins together the voices of those who need help with a courageous heart" he finished as he clenched his hand, shutting off the glow emitted from his power.

"Why are you giving me something so great?" Izuku questioned the hero.

"I have been looking for a successor, and then, I watched you jump into action, while the rest of us stood idly by." He said, looking at Izuku with the utmost expression of seriousness. "You're just a Quirkless hero fanboy, but you were more heroic than anyone back there!" He explained to Izuku, as Izuku began to tear up in response. "Well it's up to you though. What'll you do?"

'He said so much to encourage me, and even told me about his quirk. There's no reason to turn him down...' Izuku thought to himself as he stood up to face All Might. "I'll do it!" Izuku yelled in conviction.

"Instant agreement? That's what I thought you would say!" All Might exclaimed, happy at the thought of finding a worthy successor. "Meet me at Dagobah Municipal Beach park in two days to begin your training." All Might said as he bid his new successor farewell and left.

'Did that just happen...?' Izuku thought to himself, lost in complete euphoria, at his idol telling him that he can be a hero and entrusted such a secret to him. So deliriously happy was he that he completely missed his phone's repeated buzzing until reaching home and seeing three missed calls and a worried text that read:

Mochan: 'Is everything Ok? :-(

"AH!" Izuku yelled as he hurriedly went to shower to get ready, having completely forgotten he was to meet someone due to all the commotion that day.

Authors note:

So this idea has been spinning around for a while now, and I had to try write it... not sure If It'll be good yet, but wanted to get more practice.

To those of you who realized, yes, that is the freakin' Sharingan from Naruto. Why? because Izuku already has the skill to analyze his opponent's quirk, why not make that his actual quirk, but because he was never in a life or death situation, his quirk was stuck in its base form, which is his natural ability to analyze. during the ten months I want him to learn his Sharingan as I think it would be a cool support tool for One for All, being that it doesn't matter how fast you can react to an object, if your body can't keep up then it won't matter, which is where the strength and speed from One for All comes in. I don't plan on giving him Mangekyo as that would be too broken with all his other abilities, plus I really don't see our Izuku killing anyone, let alone his best friend, I mean yeah he could unlock it by working hard like Shisui, but... Mangekyo, let alone the E.M.S. would be too broken so I'm sticking to the basic sharingan abilities like copying movement or casting illusions...Since there's no chakra for him to do ninjutsu with and quirks would be like a bloodline he wouldn't be able to copy them, the sharingan won't be as overpowered as in Naruto, however he can analyze quirks, for example if Uraraka tries to use zero gravity he would see her fingertips have a strange glow, signifying quirk usage in that area.

I want him to be overpowered eventually but not to the point where there is no tension in fights and he stomps everyone.

Also... yes deku got a text from a girl :0 I wonder who and what else this will change.