Had to repost this story as it was marked as a crossover. In turn, making it harder to find as it didn't show up in the general search, even when using the character filters. Which, was casing my reader bais, for this story, to be extremely limited.

Hello my faithful and hopefully new readers, I am back with another chapter of my MHA/DB series/Avengers crossover. Now I have gone over this chapter with a fine tooth comb, well, as much of a fine tooth comb as I can get, for spelling, grammar, and punctuation mistakes. I have done the same for the last chapter and have even made a few subtle alterations to the last chapter as well that will play into this chapter. Nothing manager, just small detail, and dialog. Also, I apologize now if I screw up too much on the Marvel, or Izuku's personalities as this is my first time writing Marvel characters and writing a story that has a primarily shy and awkward main character. However, I will still be doing my best so please, no flames. On a side note, If anyone would like to make a reading of any of my works, please just PM me. Now on to the Review Response fore last chapter.

A Fan chapter 1. Aug 21: This the first review? Awesome. Anyways the girl was Nejire, right? I always thought they would be a perfect ship because honestly right after the sports festival she should've stormed directly up to him (Curiosity why else?) and demanded what his quirk is due to every use of it his bones shatter. Sadly I don't think the author had her character setup then because that is exactly what would happen(considering her personality and all). ~~~ Yes, the main Heroin of this story will be Nejire. Also, I have to agree with you about their shipping. Originally, I didn't really have a preference about who was shipped with Izuku, so long as they were a female character, but then I stumbled on the Izujire shipping and loved it. Additionally, I felt they would make a good pair when Nejire was introduced in the Manga. Plus I agree About how Nejire would have reacted to Izuku during the sports festival and that it only didn't happen because the author probably didn't have Nejire's character set up yet.

Karlos1234ify chapter 1. Aug 21: This is interesting. Does Izuku have the Hulk's anger?~~~ Glad you are liking it and hope you will continue to do so. As for your question, in a way, you could say Izuku does and doesn't have the Hulk's anger. My answer will become clearer as the story progresses.

Guest chapter 1. Aug 21: Hilarious now you got me curious. ~~~ Happy to hear that, I hope to keep your interest in this story.

bladetri chapter 1. Aug 26: like XD ~~~ Happy you do XD

HenryHPS chapter 1. Aug 30: Hello there! I've got to say... When you told me that you were writing an Izujire story I was not expecting a crossover with The Avengers! Not that it is a bad thing, it just caught me off guard... But, overall, its a really good story! Well written, nice plot and THE AVENGERS! Congrats, you got yourself a loyal follower! Now I just want to know what you're going to do since Izuku didn't inherit One for All... ~~~ Glad to see that I was able to surprise you and that you were willing to look at my story as yours is part of what inspired and drove me to put this one out. Also, am happy to hear you will now be following my work, and hope you like where I will be taking this story.

Now then, on with the story and please remember to review as It helps to motivate me to put out more chapters sooner.

Chapter 2

Upon waking up the next day, Izuku had a spot of sunlight streaming into his room and directly into his face. Groning, Izuku, looked at his clock and saw that he still had twenty minutes before he had to get up and get ready for another day in the hellhole that was his middle school. A rather unpleasant thought for Izuku due to a few facts. First, was that school was practically a living hell for him. Then, you had that he would have to attend that hell with only having slept for a grand total of half an hour. Which, had been spread throughout the entire night, despite his fatigue, thanks to the sharp pain he was feeling around his lower back to upper butt area of his body.

Deciding to be lazy for once, and not really giving a shit due to his exhaustion, Izuku went to roll onto his other side in a desperate attempt for sleep. However, as he rolled onto his back, Izuku found himself literally leaping out of bed due to the excruciating pain he had felt radiate throughout his body. Yet the odd part was that Izuku couldn't identify where the pain had originated from in his body.

Temporarily casting the thought aside, Izuku walked out of his room and into the bathroom, He then froze when he saw his reflection via the bathroom mirror. As floating behind him, to a rhythm that not even he knew, was what looked like a monkey tail. Once the Reality of the situation had sunk in, Izuku not only accepted that he now had a tail but that it was a highly sensitive monkey tail. If the throbbing he could feel from when he unknowingly pinched it was anything to go by now that his brain was taking into account his new appendage and it's part of his nervous system.

Focusing on bringing the tail in front of him, Izuku watched as the tail stopped aimlessly swaying and promptly wrapped around the side of his body to be in front of him. Izuku then carefully moved his hand to feel the throbbing area of the dark green, borderlining black when not in the right light, furred monkey tail. However, Izuku winced in pain as his finger touched where he had unknowingly folded his tail in on itself and pinched it together with his weight.

"Izuku! Come here, we have a gest." The green haired boy heard his mother call from the front door.

"I'll… I'll be right there!" Izuku shouted back as he quickly took off his pajama bottoms and underwear before using the scissors that were kept in the bathroom to carefully cut a small hole in both his pajama bottoms and undergarments for his new tail. Once done, Izuku, threw his clothes back on and walked out of the bathroom. Izuku had thought about getting changed but concluded that it was still early enough that anyone who had stopped by would understand that he had just woke up.

'It's not like we are being visited by Iron Man or something.' Izuku thought to himself only to freeze in his tracks at the sight of Tony Stark standing just inside of the doorway to their home.

When the mother and Hero saw Izuku, their reactions couldn't have been more different.

Tony smirked and waved to the young man.

"Hey there, finally got you Quirk hu?" Iron Man said, happy for the boy before him as he had done a little digging and found that the boy had suffered a great deal due to him having been deemed Quirkless. So the man was happy that could no longer be the case.

Inko, on the other hand, had frozen with a look of horror on her face before she dropped to her knees and began sobbing tears of sorrow into her hand. However, Inko quickly recovered enough that she now had an iron grip on Izuku's shoulders.

"Izuku Bardock Midoriya, did you look at the last full moon," Inko demanded in a surprisingly stern, and quite frankly, pissed tone. Something that was rather unusual for the fretting mother.

"H… How are you here," Izuku question, his shock having kept him from registering what his mother said or the danger that doing so could put himself in.

"Tracked your phone, though we can talk about that later." Iron Man said as he gestured to Inko, hoping to help the boy save himself from his enraged mother.

Upon seeing his mothers anger, Izuku quickly realized what she had more than likely thought he had done due to how often she would stress for him not to look at the full moon.

"What, no, I would never do that, you said looking at the full moon was dangerous for me and that you would explain why when I turned eighteen or got a girlfriend," Izuku said, trying to placate his mother's rattled state, unknowingly making thing far worse.

Upon hearing her son's answer, Inko dropped down onto her knees once more.

"Then why, why do you have that Tail. The doctors assured me that those genes were recessive and would never affect you." Inko mumbled to herself, shocking both males with her.

"Ma'am, what exactly is going on with your son. I understand that there may have been family secrets you were hiding from him to protect him, but that time is gone. Your son Needs to know what you do." Tony said in a serious tone, both due to him wanting to know why her son having a tail affected the woman so much and wanting to ensure the boy's safety.

Nodding, Inko led the two into the living room where she quickly made a call to Izuku's school to let them know he wouldn't be there today. Once done, the mother took a set and let out a regretful sigh before she began.

"Izuku, the reason why I have always told you not to look at the moon is due to our family, from my side, isn't exactly human anymore. At one time, we were, but that changed during a time long before Quirks started appearing. You see, the aliens that attacked in America, or even Thor himself, are not the only beings out there. Nor are they anywhere near the most powerful. As there are races that can destroy entire planets without so much a breaking a sweat." Inko explained, much to the shock of the other two, yet they were still woefully unprepared for just how shocked they would be by the end.

"The Saiyan race was one such race, appearance wise, Saiyans look like humans with the exception of a monkey tail and one of two set hairstyles. Ho, and they didn't look any older than their twenties until around eighty years old. However, they were but one race that survived a tyrannical, interplanetary emperor. It was also that emperor who brought about the near eradication of the entire Saiyan race besides that of a handful of them. Soon, two of the five surviving members made Earth their new home. Of course, to one of them, the Earth was the only home he had ever known due to having been sent here as an infant. The two even had families of their own that were eventually joined into one by the marriage of the youngest children of the two families." Inko said, pausing long enough for the two to let the information settle into their minds.

"Over time, the Saiyan genes were purged from our bloodline. However, that didn't stop the Saiyan DNA from permanently altering our family's human genes. So, even with our bloodline being human once more, we are equivalently homegrown aliens as our mutated genes are still passed on and continually mutate the new DNA that is brought into our family with every generation. Yet with those altered genes, come the side effects of the Saiyan genetics. For those of our family who have the altered genes as their more dominant genome, looking at the full moon will send them into a blind rage, destroying anything around them and attacking anyone near them. You had this happen once when you were still a toddler. Which, caused me to take you to the doctors to find out if you had those dominant traits. Of course, that is only for those of our family that doesn't end up with a monkey tail. As those that do suffer the complete set of the side effects. A lust for battle, even if it could mean their death. Growing stronger from every betting they take. When they get strong enough, transformations that eclipse the power they hold in their base forms. Having a natural affinity for learning how to use KI, an energy that every living thing has and can use with training, like that of a weapon. Then there is the rage, the mind-numbing, bloodlust inducing rage that makes them lose all sense of reason and drives them even further in their want for battle. Lastly, there's the Oozaru form. The Oozaru form is that of an Ape the size of skyscrapers. It's a mindless state that is brought on by the Flux waves in the reflected light of the sun off of the moon. Those same Flux waves cause the tailless members of our family to enter a mindless rage, but without the tail, the change can't happen." Inko regretfully finished the word for word explanation that she had been given, leaving the two before her baffled by what they just learned.

In layman's terms, they had just found out that the Midoriya bloodline from Izuku on were all going to be superhuman beings.

Sighing, Tony broke the silence that had engulfed the three of them.

"Not to be the bearer of even more heavy news, but you need to see this." The man said as he pulled out his phone and projected several Newspapers. All of which, had one main thing in common, they were all about Izuku's blow up.

Heroes get a reality check from Quirkless boy, Quirkless boy does Pro Heroes' job for them, Heroes left helplessly to watch Quirkless boy do their job for them, Heroes blinded by their own power, Heroes powerless to save victim as Quirkless boy acts, were all the titles that Izuku read before Tony switched the projection to a tv news station. Once he felt that the reality of the situation had hit, Tony turned off the projection and addressed Izuku.

"For better or worse, your outburst has opened the public's eyes to one of the biggest problems most Pro Heroes have, and the effects are spreading. Your little blow up is already international news. People are starting to question if they should continue to trust us Pros when so many of us have let innocent die because the Hero on the scene didn't have the right Quirk. Not only that, but it's affecting the Pro Hero circles as well, Heroes are putting more thought into their actions, being more mindful of how they act in public, even asking their perspective governments to develop courses to help them, and heroes in training, learn how to fight those that make their quirks useless." Tony said as he looked into Izuku's blown out eyeballs.

"Of course, the news I bring isn't all bad. Remember the notebook you let me borrow?" The billionaire questioned, getting a nod from Izuku. "Good, because I sent emailed copies to the rest of the Avengers and had a meeting with them. It was agreed that letting such potential go to waste simply isn't an option, especially when you clearly have the desire to do good. So, we want you to come to the U.S. and let us train you for the next ten months. Quirkless Heroes may be unheard of here in Japan, but they aren't in the States. We're just better at hiding it. Also, after your done training, we'll enroll you into Avengers Academy, the U.S. version of UA." Tony stated as he continued to talk. Even going so far as to pull out the mini Arc Reactor from his chest to demonstrate his point. Once done, he waited for reality to hit, only to be stunned by an instant response.

"I'm sorry, but I can't accept that. I made a few promises to someone important to me, and I can't keep them if I can't go to UA," Izuku said with his head bowed, not wishing to offend the man before him. Only to hear laughing.

"Haha… well, I don't see that being a problem, once we've finished your training, we'll ship you back here with our recommendations in hand. Then you'll be sure to get in, of course, we won't do so unless you work for it. Might even send a few transfers back with you, sound good?" Tony said with a smile as Izuku started crying and his mother began fretting at him about ensuring her son was safe and that the young man keeps up on his schooling while he was gone.

'Well, I can take that as a yes if ever there was one.' Tony thought to himself.

After the mother and son dow calmed down, Tony slid what looked to be a rectangular piece of glass across the coffee table towards Izuku. (Picture an expanded Scroll from RWBY)

"What's this," Izuku questioned as he picked up the piece of glass.

"It's your new phone kid, can't have my protégé using a flip phone. It will also act as your key to the training facilities we will be using. Plus, I took the liberty of hacking your phone and transferring the contents over as well as transcribing your Hero notes in as well. You can do the same by instructing it to do so before placing it on your notebooks, the phone will do the rest." Tony explained, carefully to ensure that Izuku couldn't simply refuse the gift due to his shy nature.

"T… Thank you," Izuku all but yelled as he stood up and bowed to Tony.

Upon hearing Izuku's acceptance, Tony couldn't help but smirk. Sure, the others and he agreed that Izuku would end up being the protégé to one of them, but Tony had already taken a liking to the boy. He had seen the potential that Izuku had, and was determined to help shape Izuku into the type of Hero that the boy was meant to be. A Hero that would do what he knew was right and say fuck the rules if they got in the way of what was right, a Hero like him. As the last thing that Tony thought this world needed was another Cap, who Tony knew would do everything he could to mold Izuku in his image, and All Might was already close enough to being the second coming of the First Avenger as it was.

One week later

Izuku had just landed in New York City via Tony's private jet. Needless to say, the entire flight had been extremely uncomfortable for Izuku as he was way out of his comfort zone. After all, he lived in an apartment for crying out loud, he wasn't used to using high-end things like a privet freaking jet that had personal attendants to cater to his every whim.

So, getting off the jet was a relief for Izuku, or that was until he saw the rather High end looking sports car start to pull up.

As the red and gold car pulled to a stop, the passenger door opened and out stepped Iron Man. Who, had on a brown leather jacket, blue jeans, running shoes, a black long sleeve shirt, and red aviator sunglasses.

Closing the door to the car, Tony leaned against it as he waved the Hero hopefully over.

"Enjoy the fight," the billionaire asked.

"Yes, um, w… what ty… type of car is that" Izuku answered in perfect English, albeit stumbling a bit thanks to his nerves, due to him having studied multiple different languages to possibly help his Hero carrier as he didn't want a language barrier preventing him from being able to save someone. As well as wanting to get used to having to speak primarily in English due to the fact that he was now going to be living in an English speaking country.

Upon hearing Izuku's reply, Tony was a bit shocked. Up until this point, he had been speaking with Izuku in Japanese. So, suddenly hearing Izuku speak in a different language was more than a bit surprising.

"All right then, as for what type of car it's a corvette stingray zr1, and here," Tony said as he stood up and tossed Izuku the keys. "It's all yours,"

"But I don't know how to drive, I don't even have a license," Izuku exclaimed, his surprised overriding his nerves and shy nature.

"That's why there's the auto navigation, besides this isn't Japan, you're going to need wheels and I won't be able to be around Twenty four seven, though I will be around a lot. Now come on, waiting on you," Tony explained as he got in the car and closed the door.

Once Izuku got in, Tony showed him how to operate the car's auto navigation, and even how to connect his phone to the car.

Feeling far too overwhelmed at the moment, Izuku asked for a minute before he plugged his head in to listen to her song. After it was done, Izuku unplugged his head.

"What you listening to kid?" Tony asked, mentally noting that he had seen Izuku plug his head in when he watched the video of the young boy's fight with the sludge man, only to raise an eyebrow at seeing Izuku gain a bit of a blush.

"Um, It's a song that was made by my childhood friend. She was the only one to believe that I could become a Hero even though I had been deemed Quirkless. It was the gift she gave me when she moved away when we were still kids, and I listen to it whenever I need to calm down or focus. But most importantly, I listen to it so I won't completely forget her or the promises we made." Izuku admitted sadly as he looked to the iPod in his hand, though he had purposely left out that when the girl from his childhood gave him the song, she had also Kissed him on the check.

Upon hearing this, the Pro Hero smirked as he could tell that the girl meant a lot to his young protégé, and as such, her voice what the missing piece he needed for what he had been making for Izuku. Or at least part of the piece.

"Izuku, I want you to close your eyes and describe what you can about the girl as the song plays out loud," Tony said as he quickly attached the iPod to his phone and started to play the music.

Having gotten what he needed, tony plugged in the information he needed to complete what he had been making before he sent an installation version to the AI operation systems in both the car and Izuku's new phone.

"Who can I help, Izuku, Mr. Stark." A voice rang out, with Izuku's reaction being all but instantaneous as his eyes bulged and his body had gone rigged upon hearing the voice.

This couldn't be possible, that was her voice, and it sounded as though she hadn't aged a sense they had been separated.

"Hope you like your AI, just tell it what want to name it and then it will basically be your personal servant," Tony said with a small smile, watching as his protégé began to sob tears of joy and having some small semblance of his childhood friend back, and hoping his gift would help heal some of Izuku's emotional scars from his pain-filled past.

"Nice to meet you, I am Pepper Potts, Tony's assistant." Said a woman with Red hair tied in a low ponytail, eyes green, a light brown blazer over a black t-shirt, a brown skirt and shoes. Once Izuku and Tony had reached Stark Tower, Tony had instructed Izuku to head to the private elevator and head to the third floor. Upon reaching the third floor, Izuku met the woman before him.

"Now, your things have already arrived and are waiting for you in your room. You will have today to recuperate from jet lag but tomorrow you will be attending Midway High, as your grades and Hero Notes prove you have been more than ready to skip a few grades. You will also find that there are five other students that have peaked the interest of Shield and as such, the Avengers, due to Nick Furry believing that they could be the next Avengers. After school, and occasionally on weekends, you will undergo training overseen by the Avengers. With Captain America being in charge of your physical development as the blood sample Tony sent us showed that Steve is the closest match to your physical capabilities. Hulk and Thor will help you with building your power, as your mother has given us materials that show just why KI is capable of doing. As such, Thor is the best bet for helping you learn how to tap into your KI and the hulk has the best chance of surviving your KI attacks. Black Widow and Tony will be helping you with your battle strategy. Hawkeye will act as an observer to help the other fine-tune your training as well as occasionally helping you learn how to combat long rage fighters and the aim of your KI attacks. Lastly, Tony has already installed Angel in all areas of this floor." Pepper explained to Izuku, who simply nodded in acceptance, as guided him through the floor of Stark Tower that would be for him to use and live in as he saw fit.

Seeing that the boy needed his rest and that he was rather overwhelmed, Pepper decided to give him a hug as she told him that if he needed either Tony or herself, that they would help in whatever way they could.

She then left with a small smile on her face as she recounted how Izuku's AI had informed her that he had named her Angel due to her voice acting as the guardian angel for his memory of his lost childhood friend.

Ok, all done for this chapter, please remember to Review and feel free to PM me. Additionally, If anyone would like to make a reading of any of my works, please just PM me.