Summary: What If Deku was the Legendary Super Saiyan? We will use the 'old' LSSJ version in this story. No pairing because I couldn't see such a pairing with a savage brute. The power levels will be slightly tuned down, but not too much.
Ever since young Izuku Midoriya was diagnosed as Quirkless, he was ridiculed as a worthless nobody. His friend, Katsuki Bakugou, insulted him which resulted in name-calling, the most common being the name 'Deku.' He struggled to find and fit himself in the world now filled with 80% of the people being holders of some unique quirk. His mother, although an optimistic woman, was also viewing her son's life as realistic. She knew that people without a quirk were the ones that had lived the hardest. Most Quirkless ended up committing suicide. The boy only wanted to help those in need, nothing more, nothing less. Izuku, as much as he wanted to be positive, just couldn't find his peace in the world, mostly because people reminded him of his status in the quirk society. Speaking of society, the people, although friendly towards the Quirkless, didn't directly appreciate such people existed. It did make Izuku wonder what he recalled of his father. The man never appeared after he was diagnosed as Quirkless. His mother told him that it was because he had to work more time to provide for the family, but Izuku knew better.
As this was being played in the young man's mind, a being that looked like a sludge substance came out of the sewers at such fast-paced, he almost missed the boy. With an evil glint in his eyes, the villain jumped on the boy, restraining the boy from running and screaming.
Just as the villain was about to kill the young boy, a man about 7 feet tall came to rescue. After All-Might stopped the villain, he proceeded to try and wake up the boy. After everything played out in Canon style, Izuku asked a question that would forever change his life.
"I'm Quirkless, I don't have a quirk. Can I be a hero and become someone like you?"
That question froze the number 1 hero, having rarely imagined encountering a Quirkless person who desires to be a hero. Toshinori himself was Quirkless before he received his quirk from his mentor, but wasn't going to say that to an unknown boy he just encountered. With a sigh, the number 1 hero decided to tell the boy a harsh truth.
"I'm sorry young man, but you can't be a hero without a quirk."
His mind was replaying what he had just heard. His idol, All Might, also didn't believe a Quirkless nobody could be a hero. Izuku was feeling something he tried so hard to cover up: his sorrow and rejection. He just couldn't understand, why would the universe pull him into such a joke. What had he ever done to receive such a penalty in life?
Izuku slumped his shoulders, believing that in all reality, he was destined to be quirkless and was hopeless in the matter. All-Might seeing the outcast look on his face was saddened to see such a heart be torn. However, there was nothing he could do. It wasn't like he could give One for All just because a kid didn't have a quirk. Going down the staircase of the rooftop, he turned one last time only to see a green silhouette with red glowing eyes standing right behind the boy. All-Might blind and the shape disappeared. Something tells him that the boy may be something special, but he shrugged it off as his mind feels pity for him. However, what he saw was no mind game, but rather a harsh truth that is to come.
Another store was caught in flames as Backdraft tried to use his quirk only to have another store caught on fire as well. The other pro heroes we're having any good luck. A villain made out of sludge was holding a teenage boy hostage. When everything looked to be lost for the blonde head's life, another variable came into the show. Izuku, who was standing on the sidelines, couldn't help but feel sorry for his school's bully and anger towards the heroes. With so much conviction (and courage if I do say so myself), he ran toward the villain with a bit of speed he didn't know he had. As soon as he got a foot close to the villain, the green-haired boy threw with all his effort a punch. His punch, however, was not what he expected. He expected the punch to bounce or go through the villain, but instead, his punch made a small dent in the sludge villain, shocking the audiences and heroes alike.
Just as the shock appeared, it vanished as the villain composed himself and was about to explode the boy into pieces. Fortunately for the people who didn't want to watch a live gruesome scene, All-Might appeared and delivered a strong Detroit Smash, causing the weather to change and for the villain to be defeated.
The aftermath was, of course, Izuku being scowled by the local pro heroes about running to danger and never getting involved in a life-threatening situation. Izuku feeling the constant criticism intensify his annoyance decided to call it a day, only for Katsuki to throw more salt into the wound. He couldn't take it anymore! With as much control as he could muster, Izuku turned around to continue on his way back home, only to once again have another issue being All-Might.
'Gosh dammit! Why can't they leave me alone!' Izuku mentally yelled, already feeling his anger and sadness getting the best of him.
"I AM HERE!" All-Might announced, not noticing the murderous look in Izuku's eyes.
All-Might says the same thing he does in canon, but one crucial fact changes this Izuku's story. That fact is what Izuku responds to All-Might.
"Young man, you too can become a hero!"
All-Might was expecting the boy to be either jumping with joy or crying in joy. However, neither happened as Izuku stared blankly at his once favorite hero. It was at that moment when All-Might finally noticed Izuku's eyes. He saw both anger, annoyance, hatred, and most of all, sadness.
"Mister All-Might," Izuku said coldly, "how dare you have the audacity to come to me right after my heartbroken moment. After my humiliation in front of the pros. To come right after I decided a new path."
The number 1 hero was stunned to hero a negative response from his fan. After all, wasn't he the kid who asked if he could become a hero even if quirkless? All-Might opened his mouth to say something but instead of saying words, he spat out saliva. He looked down only to see the boy he was about to talk to punch him square in the stomach. A boy about 15 years old was strong enough to hurt him!
He fell on one knee, breathing heavily, unexpecting a strong punch, much less one from such a thin child. He turned towards the boy only to see him nowhere away.
'Where did he go? Better yet, how was he so strong and so fast? I thought he said he was quirkless?!' All-Might said, now getting up from the ground.
The Symbol of Peace seeing as no one was around, gave a huge jump where he was standing seemly flying in the air.
Izuku came back home in haste, not carrying to even announce his mother his arrival. He enters his room, hoping for everything to end. Slamming the door, he took a long exaggerated sigh. His room was full of the man's face, from his walls to his blanket. He didn't want to see the man's face but had nowhere to look because his entire room was dedicated to that man. His smile irritated the boy so much. He wanted to rip that smile off his face, angered to be reminded what his idol was supposed to be. 'The Symbol of Peace?' Izuku's Iris flashed lime. He was angry. No, he was beyond angry!
"I'll… I'll show them… I'll show all of them!"
Izuku's Iris and Pupils disappeared, revealing now menacing white eyes.
"I will end you… All-Might…"
And that is it for this chapter! I hope you all like this chapter. And please, if you like this story and want to see where this story goes, please like and follow this story, I would appreciate the support. Criticism is always welcome, but please, don't start spamming profanity.