AN: So here's a crossover I just couldn't get out of my head! I'm going to say this now, I don't speak Italian so any Italian used in this story is from Google Translate.

"Sorry, kid, it's not gonna happen."

Those words were the start of what Izuku would later go on to call "his thirteen-year nightmare." They were the first step in his journey of discovering that the American Constitution was a big fat liar and that all men were in fact, not created equal.

His (former) family doctor had looked at him with such pity as he relayed the news to his mother, how he was quirkless, how he wasn't going to be able to become a hero, and how he should be more realistic with his future goals. Izuku remembered the visit vividly, as it had been one of the first real defining moments in his life, and unfortunately, it would color his life for years to come.

His mother had taken him home, Izuku remembered that clearly, she let him go up to his room while she shakily began to prepare Katsudon for him in a futile (but appreciated) attempt to cheer him up. Izuku turned on All Might's debut video once again, he watched it for what felt like hours, trying to tell himself that everything was ok! That he could be a hero even without a quirk! But the words wouldn't come out, all that came out of his mouth were sobs and gasps for air so that he could sob more.

His mother came into his room to tell him that dinner was finished when she caught sight of what he was watching. He turned to her and pointed at the screen with shaky hands, sobbing out "Do you think I can be a hero like him mom…"

That was the last straw for Inko as her own flood gates opened and she quickly rushed to hug her son. She didn't know what to tell him, that he could? That he shouldn't? Instead, she just wailed "I'm sorry honey! I'm so sorry!" and that was the last thing Izuku had wanted to hear.

A few moments later a happy humming reached the mother-son duo, Inko calming quickly at the sound while Izuku's tears continued to flow quietly down his cheeks. "Oh! Katsudon! Not as good as spaghetti but beggars can't be choosers!" the heavily accented Japanese of her husband reached Inko's ears and she smiled slightly before looking down at her son.

"I think you need to talk to daddy, Izuku." She kissed her son's forehead and quickly made her way out of the room to retrieve her husband. She may have royally messed up cheering Izuku up, but his father never did, he always knew just what to say or do to make their boy smile.

She quickly made her way into the kitchen, where lo and behold, her Husband was happily serving himself a bowl of Katsudon, humming a tune she had grown incredibly familiar with.

He stood at around 5'4, had a bit of a stomach (though Inko could attest that his stomach was mainly untoned muscle similar to an old school Sumo Wrestler and not fat) wore blue overalls, a redshirt, and white gloves, and on the tip of his lip was a full mustache. He was without his signature hat, having left it hanging on the coat rack when he came in, its bold red M proudly displayed for all to see. This was her husband, Mario "JumpMan" Mario. Hero of the Mushroom Kingdom (retired) and the love of her life.

She quickly walked over and gave her husband a kiss on the cheek, which made him smile softly at her, he wiped his face with a napkin and returned the kiss. "buona serata! Inko-chan!" he smiled widely at her "how was your day?" he quickly spooned another mouthful of Katsudon into his mouth "did the doctor's appointment go well? Did Izuku get one of those...how do you say…" he struggled with the Japanese for a minute before he figured it out "Ah! Quirks!" he grinned "One of those Quirks." his grin fell when he noticed Inko's tear smudged face and forlorn expression.

Katsudon forgotten he quickly stood up and hugged his wife, "Tell me, Cara Mia, what happened? Why are you sad?" and once again, in her Husbands strong arms, Inko told him everything, how the doctor callously tore into Izuku's dream, how he didn't have a quirk, how she botched comforting him and all the while, her dear Mario just listened and rubbed her back encouragingly.

After she had calmed down, Mario quickly moved her to sit at the table and got her a bowl of Katsudon, along with a glass of water, which made her giggle softly. "Mama Mario always said, chase away sadness with a good meal, and Cara Mia, your meals are always good." He kissed the top of her forehead and smiled at her "You just relax and enjoy some food, I'll have our little Bombolone out here smiling in no time!" he gave her a thumbs up and Inko could feel more tears welling up in her eyes, this time happy ones as she nodded and took a small bite of her dinner.

It didn't take long for Mario to reach his son's room, with the apartment he shared with his family being so small, so he quickly stepped into Izuku's room and frowned down at his little boy. His son was hiding under his All Might-themed blanket, soft sniffles could be heard, telling Mario that the boy had managed to wear himself out crying, but still wasn't done yet.

Thinking quickly, Mario smiled and squatted down to Izuku's level and poked the blanket. "Bombolone, the floor is no place for a blanket, we've discussed this, yes?"

Izuku mumbled something incoherent which caused Mario to just grin.

"Well, you leave me no choice!" he quickly grabbed the blanket and with a quick tug pulled it off of Izuku, much to his son's displeasure.

"Papa! Give it back!"

Mario scooped his son up and tousled his hair "Would giving it back make you not so sad, Bombolone?"

Izuku just pouted at that and Mario took that as a no, he walked over to the bed and sat down, bouncing Izuku up and down on his knee, making the four-year-old giggle a little bit. "Now, Mama tells me that you are sad, why are you sad Bombolone? Was it because Italy lost at Football?" Izuku giggled again at that, not knowing what Football or Italy were (he was four! Give him a break) and he shook his head.

Mario put a hand to his chin, pretending to think. "Was it because Papa didn't pick you up from school?" again he got a head shake and Mario frowned "was it because the mean doctor said you couldn't be a hero?"

At that Izuku sniffled again, but nodded, which caused Mario to kiss him on the top of the head. He was about to say something else when Izuku whispered out "Mama doesn't think I can either…"

Mario almost felt his heartbreak at that, but he stayed strong and hugged his son tighter. "Oh my little Angioletto, Mama didn't say you couldn't be a hero."

Izuku shook his head rapidly "yes she did! She kept saying Sorry after I asked her if I could still be one…"

Mario frowned, he knew that Inko had told him that but hearing their son point that out reminded him how smart Izuku was, he caught on to everything quickly! He felt a bit of pride hit him before he focused on the task at hand. He hoped Inko wasn't mad at him for sharing her worries, but honestly, he had to if he was going to get Izuku to calm down, much less come eat.

"Can I tell you a secret, Izuku-Chan?" Upon Izuku's nod, Mario leaned in and whispered into his son's ear. "Mama was apologizing because she thinks it's her fault that you don't have a quirk."

Izuku looked back at him quickly at that, shock written clearly on his face that his mother, the nicest lady he had ever known (that isn't a high bar, he only knew Miss Bakugou and his preschool teacher) blamed herself for his lack of quirk. "But that's not…"

Mario just nodded "I know, but she thinks that and you two are alike in lots of ways since I know for a fact you blame yourself for things that aren't your fault as well." his mind filled with a couple of incidents just this week and he chuckled "anyway, that isn't what's important, you asked me if you could still be a hero right?" At Izuku's nod, Mario lifted his son off his knee and placed him on the bed. "Well let's get a second doctor's opinion then hmm?" With that, he ran out of his son's room and headed towards his shared room with Inko.

A few moments later he came back to Izuku's room, his doctor's lab coat over his clothes, a stethoscope around his neck, and a head mirror on his...head. "It'sa Me! Doctor Mario!" his son outright laughed as his father did a silly dance upon entering the room. "What seems to be the problem?"

Izuku tried, he honestly tried, but he couldn't withstand his father's silly faces and upbeat attitude. He started giggling uncontrollably as his dad put the stethoscope on his forehead, and then his arm.

"Hmm yes, this is very serious." Mario closed his eyes with a hand on his chin, nodding along as he spoke. Izuku gasped and scrambled up to his dad.

"What is it Doctor Papa?"

Mario looked down at his "notepad" (which in reality was one of his son's All Might Coloring books.) "Hmm, It says here that…" Izuku leaned in further, his eyes sparkling with curiosity "It says that you can be a hero!"

Before Izuku could process what his father had told him properly or even begin to cry his eyes out once again, Mario scooped him up into a hug and began talking again. "You don't need a special power to be a hero, Bombolone, you just need the right heart and mindset for it and you have that in spades! Your heart is bigger than Uncle Luigi's and kinder than Aunty Peach, so don't you worry, You'll be a great hero! And If anyone tells you otherwise, I'll give em a good stomping!"

The two stayed like that for what felt like hours before Inko finally came in and was promptly dragged into the group hug by her husband and son.

Hearing her son giggle as his father tickled him on the floor made Inko smile, everything would be ok.

Obviously, when it comes to the Midoryia-Mario family, life likes to throw curveballs, specifically Chain Chomps. So it was a few months later one cold October night that Mario came home from his office to a letter wrapped in a pink and green silk bow on his toilet. The letter didn't surprise him, his brother and sister-in-law wrote to him often inquiring about Izuku and Inko and how life in Japan was. What surprised him was how formal this letter was, and as he read on it filled him with both determination and dread.

He was about to write a reply when he heard his wife and son come in, the rustling of bags indicating that they had been out grocery shopping before they came back. He sighed through his nose and quickly walked out into the living room, hugging his son and kissing his wife before giving Inko a worried look.

"Bombolone why don't you go play with your toys for a bit yea? I've got to talk to Mama about something important." Izuku obeyed immediately upon hearing his father's tone, his dad wasn't a mean or angry man, he was a very soft-spoken individual and very rarely raised his voice, but he had a tone that left no room for argument and even four-year-old Izuku knew that to be true.

Luckily his house had pretty thin walls, so when he waited until his parents started talking before sneaking out into the hallway to listen in on what they were talking about.

"What's this about Mario?" Inko asked with a frown, her husband wasn't a very serious man by nature, but he was being uncharacteristically serious at that moment, and honestly, it frightened her a little.

Mario didn't answer verbally, instead, he handed her the letter and sat down at the kitchen table, waiting for her to finish it.

After a few moments Inko's worried frown turned into an angry scowl and she looked up from the letter to her husband, crumbling the paper in her fist "They want you to come back?" she growled "To return to service? After everything you did for them?" it took all of her energy to stop from yelling.

Mario nodded solemnly "Bowser broke the treaty," He began only to be cut off by his wife's angry shout.

"And what does that have to do with you!? It's Peach's job to enforce Mushroom Kingdom's laws! It's Luigi's job to protect the Kingdom now! Why do they have to drag you into it!?"

Mario shook his head "Because, no matter how much better he has gotten, Luigi is a pacifist by nature, he would let Bowser get away, they know that I'm at least willing to follow through with what needs to be done." he stood up and walked over to Inko, wrapping her in his arms as he continued. "They need me because I'm the only one who can really stop him this time cara mia,"

Inko shook her head in his chest and cried out "But we need you too! You were supposed to be free of all this nonsense!" she looked up at him "Our boy…"

Mario glanced to the hallway out of the corner of his eye, easily making Izuku's fluffy tufted of hair out from the corner and he smiled "Our boy will become a great hero and a great man, and he'll understand why I have to go." He chuckled "After all, the Mushroom Kingdom needs their hero right now, and I can't tell them no...he'd understand that."

Inko hated that her husband was right, "when do you have to go?" she whispered dread welling up inside her heart.

Mario softly took the letter from her hands and uncrumpled it, before reading through it once more. "It says I have a few days to get everything in order before the portal opens up for me to go." he felt his wife tense and he kissed her on the forehead "I will come back, I always do and when this is taken care of when the Mushroom Kingdom is finally free of him, I can take you and Izuku and show you all of my old stomping grounds, how does that sound?"

Inko just squeezed her husband tighter instead of answering but Mario took that as a confirmation that it sounded like a great idea.

"I'll show you both Isle Delfino, take you Kart Racing, take you to visit Yoshi's island, we can have cake with Peach, Luigi, and little Rosalina…it'll be a nice little family vacation!" Inko laughed at her husband's enthusiasm and Mario grinned, all was right in the world once again.

It was two days later, that Mario left. He gave Izuku one of his trademark red hats, and told him to hold onto it for him and that he was the man of the house while he was gone. He didn't tell Izuku where he was going, and Izuku was too young to understand that the Mushroom Kingdom he was hearing about wasn't on Earth, but he wished his dad a safe trip all the same.

With a kiss on the cheek for his son, and a deep kiss on the lips for his wife, Super Mario set out for the final fight he'd have with the Koopa King.

It'd be the last time his family would ever see him.

Nine Years Later.

After that, life moved on for the Midoriya's, Izuku never gave up hope that his dad would return, but Inko, after a year of him being gone, had come to assume the worst, and that along with the stress of Izuku being bullied for his quirkless status led to her stress eating and gaining weight quickly.

Izuku never gave up his dream of becoming a hero, much to his former childhood friend Katsuki's disdain. Izuku was a kind boy, and he'd probably still consider Katsuki a friend, even after nearly nine years of torment, if it wasn't for one fatal error the explosion boy had made.

He had destroyed the hat Izuku's dad had given him.

Keep in mind, Mario had left ALOT of clothes at home when he left for his mission. So there wasn't a shortage of hats for Izuku to take if he so chose, but sentimental value made the hat his dad had given him special in his eyes, no other hat could really replace it.

It was about two years after his father's departure, Izuku was in kindergarten with Katsuki, when his "friend" had started picking on another boy alongside two other kids. Izuku had stood up for the boy, as a hero would do, telling Kaachan to leave the kid alone.

"Oh? And what are you going to do about it Deku?" Katsuki popped some explosions off his hand to intimidate Izuku, and it worked! But not in the way the blond had expected. Instead of running away or cowering like he normally would. Izuku brought a hand up to his always-present red cap and pinched the brim of it as if to calm himself before he raised his fist into a fighting stance.

"If you don't stop...I..I'll make you!" Izuku stuttered out, his heart beating rapidly in his chest as ice began to fill his soul at the mistake he just made.

He had just challenged Katsuki to a fight.

Katsuki Bakugou, a boy three inches taller than him and with a quirk specifically suited for combat, the analytical portion of his brain told him.

His inner Mario told him not to worry about that, to give the kid a good stomping (whatever that meant).

Unfortunately, Izuku didn't have the necessary skill to back up his challenge, so when Bakugou proceeded to beat the hell out of him instead of the boy he was targeting, all Izuku could do was take it like a champ, at least that's what he thought.

Things changed when Katsuki grabbed the hat he wore off his head.

"You know, ever since your midget of a father left I've seen you wearing this hat, I don't get why, we all know he left you and Auntie Inko high and dry." Katsuki drawled, spinning Mario's cap on a finger.

Izuku looked up at Katsuki with a bloodied nose and split lip, his eyes begging his "friend" to just give him his hat back and walk away.

Katsuki ignored him.

"I think you need to learn your place, Deku, You are nothing, you aren't going to be a hero, so just give up." He slammed the hat into his palm, hard, and the soft fabric that made up the cap tore like ribbons under the force of the small explosion.

Izuku at that moment felt the world stop, the smoking embers of his father's hat falling to the dirt in front of his eyes, set something off inside the six-year-old that he had never honestly felt towards anyone in his short life.

Hate.

With a cry somewhere between a roar and a sob he tackled Katsuki to the ground, the explosive boy was caught so off guard he didn't put up much of a fight and began wailing on him with his fists.

Izuku didn't know how to throw a punch, but honestly, he didn't need to he was so enraged that he just let his fists fly where they wanted to.

He had just punched Bakugou in the nose, hard, when the two lackeys had managed to get him off and a teacher came running over, a teacher who had watched the entire situation unfold and didn't step in until AFTER Bakugou was being attacked by Izuku.

Inko and Mitsuki were immediately called after the two had been separated and treated for their injuries. The principal of the school claimed that Izuku had attacked Katsuki unprovoked and that Izuku's injuries were the result of Bakugou defending himself.

Luckily Mitsuki wasn't a moron, and looked at her son dead in the eye, and demanded to know what he had done.

After everything was ACTUALLY explained, and the events that had transpired out in the open for both parents to see, things got...bad.

Mitsuki kept clenching and unclenching her hand, unsure whether to smack the principal for his negligence or her son for what he had done, a loud smack and every small object in the room shaking solved her problem.

Inko, soft and caring Inko, had smacked her son across the face, not hard, but she honestly didn't need to judging by how shocked Katsuki looked. She then proceeded to do something Mitsuki hadn't heard her do in years, she began cursing at Katsuki in Italian.

With each word, objects would fly off the principal's desk, Katsuki whose hand hadn't left his cheek stared at his aunt wide-eyed, while Izuku, who hadn't looked up from the floor since entering the office, staring at his mom aghast at the language she was throwing out.

It all culminated with Inko standing up, shouting one last curse and then looking Katsuki square in the eye before telling him "Leave my son alone, until you can properly apologize for your actions I don't want to see you near him ever again, is that clear, Katsuki Bakugou." she then turned to the Principal and growled at him "You'll be hearing from my lawyer."

After that, the two families went their separate ways. With Mitsuki promising to straighten Katsuki out and to visit soon to help Inko choose a new school for Izuku.

That was seven years ago, and Izuku was currently sitting at his desk at home writing in his hero notebook (his eleventh one to be precise). His mom had left to go check on the hospital (his dad had opened a small practice when he came to Japan, he had hired Inko as his secretary and the rest is history.) so he was by himself for the moment.

Or at least he thought he was because he kept hearing a rattling noise around his house, and it was honestly freaking the thirteen-year-old out a little bit. He put his pen down and listened for the sound again, and once it happened he came to the conclusion that it was the pipes doing the rattling. Getting up he followed the noise to its source, the toilet in his parent's room.

He was about to pull his phone out to call his mom and let him know that the toilet was on the fritz again when the lid shot open and a white and red blur shot out of the bowl, surprisingly not splashing water everywhere.

The creature landed on the tiled floor with a thump, its head covered in a white and red mushroom-looking...cap? Izuku couldn't really tell, along with white pants, short legs, and a blue and gold vest covering a surprisingly muscular chest for something so short.

Izuku stumbled back shocked, his back hitting the wall as he looked around for something to defend himself with. He quickly grabbed the plunger and pointed it at the figure standing before him.

"S..stay back! I know how to use this!."

The figure ignored him, and simply dusted himself off before looking around. His beady eyes roamed the room before landing on the boy with the plunger. Nodding the figure adjusted his bag and talked, his voice coming out a raspy high pitched thing, almost like he was a cartoon character.

"Hi! I'm Toad! I've got a message for a…Izuku and Inko Midoriya?"

Izuku gulped and didn't lower the plunger "I'm...Izuku?"

Toad's smile grew "Great! I found the right toilet! I was worried your toilet address changed after all these years."

"Toilet...address?" Izuku finally lowered the plunger in confusion, and Toad just nodded.

"Yup! Well, the official name is the Extradimensional Piping Teleportation Service, but that's a mouthful, so we just call it the Toilet Adress." he rummaged through his bag quickly and handed Izuku a very familiar-looking letter, a letter that haunted the young boy's dreams for years though he couldn't really remember why. "You and Inko Midoriya have been summoned to meet with Queen Peach Toadstool and Prince Consort Luigi Mario Toadstool to discuss the death of one Sir Mario "JumpMan" Mario, effective immediately!"

After that proclamation Izuku promptly did the only thing he really could, he fainted. Much to the surprise and concern of Toad, who didn't really know what to do.

AN: And that was that! I hope you guys enjoyed the first chapter! some notes!

Cara Mia means My Dear basically, Bombolone is a type of pastry, Angioletto basically means angel.