Author's Note: Full disclosure I messed something up and had to delete the original version and reupload it, but it's still not gonna be labeled as a crossover because I'm pretty sure that caused it.
Chapter 1: Help From a Strange Old Man
"Deku! Get the hell back here you quirkless coward!" A twelve year old boy with messy green hair and green eyes, named Izuku Midoriya, was currently running away from another boy the same age with blond hair and red eyes named Katsuki Bakugo. Katsuki had been bullying Izuku ever since they were both five years old and only for one reason. Izuku, unlike Katsuki and roughly eighty percent of the world's population, has no extraordinary superpower or a quirk as they had become known.
Both boys had the same dream, and that was to become a hero. Katsuki was merely in it for the fame, fortune, and to prove to everyone else that he was better than them. He always felt the need to constantly knock down the people he saw as below him. Izuku on the other hand simply wanted to save lives, help people who needed it, and reassure people's safety with his presence.
The chase abruptly ended when Izuku, not paying attention to where he was going, ran into someone, and it felt like he hit a brick wall. He got back up, dusted himself off, and apologized to the man. After the man said it was not a big deal, Izuku took a second to look at the man.
This guy is a giant. He's almost as big as All Might. Heck I think he might be even bulkier than him. Izuku thought. The man was about six and a half feet tall and looked like a bodybuilder. He looked to be in his late forties or early fifties, judging by his face. The next thing Izuku took notice of was his hair. It was blue with a small amount of gray in his side burns and somewhat messy. He wore a sleeveless low cut blue shirt that looked a bit big on him, but showed off his muscular arms. He also had on a pair of gray cargo parts, and brown loafers.
Izuku was too distracted with the large man to realize that Katsuki had caught up to him. "I finally caught up to you Deku. Now we can pick up where we left off." Katsuki said while several small explosions went off in his hands. He started to slowly walk up to Izuku, who was backing away in fear, until the large man stepped in between the two preteens. "Get out the way old man unless you want to be set on fire as well." Katsuki said to the man getting in the way of his target.
"I may not know what is going on between the two of you, but I'm not going to let you hurt another person. Especially considering how I know for a fact you're not a hero, and I know this other boy is not a villain. What reason do you have for attacking this boy?" The man said while making sure Izuku was safe behind him, and he noticed Katsuki's beginning to twitch with even more anger.
"You shut the hell up old man! I'm going to be a great hero some day. My quirk is a million times better than yours. Now get out my way that quirkless loser needs to be taught a lesson on how the world really works." Katsuki said as he charged towards the man. Before he could take two steps, Katsuki received an open palm strike to his stomach. Katsuki keeled over in pain and started coughing.
"I cannot deny that your quirk is stronger than mine, but you're still decades too early to take me on. Remember this kid. It takes more than a strong quirk to be a hero. As far as I'm concerned, you're as far away from being a hero as you possibly could be. What sort of hero goes out of their way to hurt defenseless people? Now go home kid I don't like hurting people that I don't think deserve it."
"This isn't over yet, Deku! Next time you won't have some shitty old man to protect you." Katsuki said as he left.
"Thank you mister. I've never seen anyone talk to Kacchan like that. Everyone else just tells him how great his quirk is." Izuku said to the old man.
"No thanks are needed young man. I always try to help out whenever I can. If I may ask, why was that other boy chasing you? Did you do something to upset him, Deku?" The man asked.
"Deku?" Izuku asked a bit saddened by the use of that nickname.
"That is your name isn't it? After all that's what that other kid was calling you." The man asked feeling like he accidentally insulted the boy.
"No my name is Izuku Midoriya. Deku is what Kacchan calls me to make fun of me because it means useless." Izuku explained while twiddling his fingers.
"I'm sorry then Midoriya. I didn't mean to upset you."
"No it's alright. You didn't know. To answer your question from earlier, he's been picking on me ever since we were five. Actually, everyone in my class picks on me because I'm quirkless. I'm the only one in my class who doesn't have a quirk. I don't have any friends either because even the kids that don't pick on me get scared away by Kacchan."
"I see, but I don't agree with that behavior at all. You didn't choose to be quirkless, and they never chose to have a quirk. If he really wants to be a hero, then he'll need a serious personality adjustment. By the way, do you want to be a hero too, Midoriya?"
"Yes I do. More than anything else in this world, but I'm quirkless. Everyone tells me I don't have a chance and that I should give up. As of late, I've started to think that maybe I should give up. What hope does a quirkless nobody like me have to be a hero? I guess I could go into the support course. That way I'd still be related to the hero industry."
The man took one look at this kid's face and knew that he needed to help him. "Why do you want to be a hero? Are you only interested in the fame and money?" The man asked with a smile on his face.
"Huh?" Izuku said confused because he had always been told he cannot be a hero, but nobody ever asked him why he wanted to be one. "Truth be told I have no interest in the money or glory. I just want to help those in need and have them feel safe with my presence."
The man nodded to himself before he resumed talking. "If those are your true reasons for wanting to be a hero, then I might be able to help you reach your goals."
"What do you mean you can help me?" Izuku asked. Before the man could answer, a scrawny man came up to them with a knife in his hand. He pointed the knife at the two and demanded they give him all their money.
"Allow me to show you." The man said. The larger man began taking a deep breath as he got into his fighting stance. Thinking that his opponent was distracted, the mugger charged in with his knife held over his head. The mugger failed to notice the yellow glow and sparks coming off the large man until his attack was stopped by the tip of the large man's finger.
The man then grabbed the blade of the knife. There was no blood coming from the man's hand, to the surprise of both Izuku and the mugger. The large man flicked his wrist snapping the blade cleanly off. Then yellow energy began flowing into the mugger. Izuku watched the entire scene unfold speechless.
The mugger dropped his broken knife and jumped away while rubbing his arm. "What the hell did you do to me old man. Not only did you break my knife like if it was nothing, but now my arm is numb with some weird heat pulsing through it." The mugger yelled, but his question was never answered. The large man suddenly appeared behind the mugger and grabbed his shoulder. The same yellow spark came from the large man's hand before the mugger was on the ground unconscious.
"He was pretty weak. I normally can't knock people out that easily. Please wait while the police arrive to pick this guy up." The man said before noticing that Izuku was mumbling to himself. He looked on in confusion and wondered if he should stop the boy.
"His quirk was definitely impressive, but I can't figure out how it works. Those yellow sparks indicate electricity, but it can't be that simple because he stopped the knife without bleeding…" Izuku continued on for a bit completely oblivious to the world around him. It wasn't until the police arrived that he stopped muttering. They took the unconscious man in off to jail, and the man started to speak to Izuku again.
"I see you're the type who likes to figure everything out and speak your thoughts." Izuku looked away embarrassed. "Alright then, let's get back to the topic at hand. What you just saw was not a quirk. As a matter of fact, I'm quirkless just like you."
"Wait that wasn't a quirk, and you're quirkless?! Then how did you do that? Are you a pro hero?" Izuku said stunned.
"I guess you could say that, but that's not important now. As I said before, that was no quirk. It was an ancient martial art called Hamon." The man said taking in the boy's shocked expression.
"Hamon? Can you teach me? If I learn that, I'll be able to be a hero for sure." Izuku said with stars in his eyes.
"Not so fast kid. I've got to make sure you have the potential for it. Otherwise there'd be no point in teaching you."
" how do you check for potential?"
"Like this!" As soon as he finished that sentence, the man punched Izuku in the gut with his pinkie extended. Afterwards Izuku started giving off the same yellow sparks as the man. This kid's potential for Hamon is incredible. It might be even higher than my own. He must have had a rough life. The man thought.
"What was that for? I thought you said you wanted to help me not physically attack me." Izuku said before noticing the faint glow around him. "Is this Hamon?"
"Yes. That was a technique meant to forcefully awaken a person's Hamon. By striking your diaphragm it forced you to breathe properly to use Hamon, and it showed me your potential for Hamon. It was extremely high." Izuku was confused at the man's statement and hoped he would explain.
"What does my breathing have to do with Hamon, and what would've happened if I didn't have high potential?"
"Hamon's power comes directly from your breathing. If you didn't have the potential, then sadly I couldn't teach you. Technically everyone can learn to use Hamon, but if you don't have the potential, you can't do anything practical with it. Consider yourself lucky, Midoriya, only one in ten thousand people have the potential, and your potential is even higher than that."
"One in ten thousand? That's even lower than the percentage of quirkless people. Why don't more people know about this?"
"Well it's partially because that so few can learn it, but largely because those that created hamon were nearly wiped centuries ago. Now the only ones who practice it are largely in Tibet and Italy. Hamon was never intentionally kept a secret to the world. All that happened was nobody decided to go public with it, and once quirks came to be, the practice nearly died out entirely. People started to prefer to use the powers that came naturally to them instead of an ability that required an intense amount of training."
"I suppose that makes sense, but I still want to learn how to use Hamon. This might be my only chance to be a hero."
"Alright then meet me at Dagobah Municipal Beach this weekend, and we'll begin your training then. For now though you should go home and tell your parents about this. I don't want to keep secrets from them. I kept secrets from my wife years ago and nearly lost her as a result."
"I'll see you then Sir. Now that I think about it, I don't think I ever got your name."
"That's my bad. I apologize for not introducing myself earlier. My name is Jonathan Joestar. You can call me Jonathan, JoJo, or Mr. Joestar. Whichever you prefer young man."
"JoJo? I'll stick with Mr. Joestar. I really should be getting home my mom is probably worried sick about me." After that, the two parted ways and headed towards their respective homes.
TO BE CONTINUED