Disclaimer I do not own the rights to Mario characters or My Hero Academia characters.

"All Might in buff form speaking."

"Characters speaking."

"Rosalina either speaking to Mario or his friends or reading the story."

"Characters thoughts or speaking mentally."

Chapter 1: Reborn in a New World

Somewhere in the Mushroom Kingdom

Mario and Luigi were finishing up their double date with Princess Peach and Princess Daisy. As they were walking down the main street of Toad Town Luigi noticed a booth nearby.

"Hey look everyone!"

Luigi pointed to a booth that had cardboard cutouts of the Mario, Luigi, Peach and Toad in their catsuits. The cutouts had the face area opened up so people could get a picture of themselves looking like the Mario crew.

"Remember our adventure saving those pixies Mario?" Luigi asked.

"I sure do bro. There was some tough enemies Bowser sent our way but it was still a fun adventure."

"I agree." Peach said. "It definitely was thrilling."

Mario Luigi and Peach laughed about their adventure while Daisy stood there with an unamused expression.

"Yeah, it must have been a really fun adventure huh?"

Mario Luigi and Peach looked towards Daisy, remembering that she wasn't part of their last adventure.

"Oh, um, sorry about that Daisy. We didn't mean to-"

"You didn't mean to what? Have a laugh about your previous adventure in front of me, knowing full well I wasn't a part of it. Is that what you didn't mean to do?"

Daisy asked, interrupting Mario.

"Now Daisy." Peach said. "What Mario meant, was that we didn't mean to exclude you. We were just reminiscing on some fond memories we had of one of our adventures."

"Adventures I'm never invited to." Daisy rebutted.

"It's not like we plan our adventures Daisy. It's not our fault you're never around when they happen."

While Peach made some good points it didn't alleviate Daisy's frustrations. That is when Luigi spoke up.

"Well, why don't we go on an adventure of our own?"

Everyone looked towards Luigi in confusion.

"What do you mean bro?" Mario asked. "I don't think Bowser is starting any plans of conquest any time soon. Not after the beating we gave him last time."

"What about Rosalina. She watches over all of the universe, so she would know a place for us to have a small adventure at."

"Well, you're right. Rosalina would know of such a place. Still, I don't think-"

"LET'S GO!"

Daisy yelled as she grabbed Luigi's hand and took off to the area with the launch stars.

"And it's not going to be a small adventure, it's going to a big one. I want my own grand adventure with you guys."

Daisy continued to say while Mario and Peach chased after them.

"Mamamia." They said in unison while catching up.

Later at Rosalina's Comet Observatory

Rosalina was sitting in her chair and reading a book when she noticed a something approaching her home. As she got a closer look a smile appeared on her face. She went to go greet her guests as they arrived.

"Hello Mario, Luigi, Peach and Daisy. I wasn't expecting you four but you are always welcomed here."

Rosalina said with a bow. Mario Luigi Peach and Daisy bowed back.

"So to what do I owe the pleasure?" Rosalina asked.

"Well, you see, we, um..." Luigi tried to explain.

"We need to know if there's someplace to have our own adventure." Daisy said.

"Oh, I see. Well you were frustrated that I got to go with them on their last adventure so I understand."

"Oh my. You were able to see that from up here Rosalina?" Peach asked in awe.

"No she told me so at our last tea party."

"Huh?"

"I told her when you went to the bathroom." Daisy explained.

"Okay, and why didn't I know this?"

"You didn't ask."

"Let's not start a fight you two."

Rosalina said, noticing that both Daisy and Peach were getting heated.

"Now as for your question, there are no worlds that need help right now, but I can offer an alternate solution."

Rosalina twirled her wand and books floated around her.

"As you all know, thanks to your numerous adventures, ours is not the only universe out there. In the vast multiverse, there are infinite worlds, infinite possibilities and infinite stories. I can-"

"Send us to one of those worlds!?" Daisy asked in excitement.

"No, not exactly. Mario, you alone have faced enemies that threatened the fabric of reality. Endangering the infinite multiverse and timelines. Most of these worlds have faced no such threats. Your presence alone would send these worlds out of balance with their natural order."

"Oh..." Daisy let out in disappointment.

"But, I can send you to a copy of these worlds that I can make."

Rosalina grabbed a book and opened it. Then she grabbed a blank book and twirled her wand again. In a flash of light the blank book was now a copy of the one she had.

"In these copy worlds what you do will have no consequence on the original. So I can send you into it without worry."

"Well what are we waiting for? Let's-a go!" Daisy yelled.

"Hold on now Daisy. This will take time for me to prepare. Please wait until tomorrow. It should be ready by then."

The Mario Bros. and the two princesses left to leave Rosalina to her work.

The next day

The four had arrived bright and early to start their new adventure. As they arrived they saw Rosalina on a new platform next to her observatory. On this platform their were four beds and a book in the center of them.

"Hello there. Please come in. Everything is ready to start." Rosalina said, beckoning the four over.

"Mamamia Rosalina, you really did a lot of work last night." Mario said in awe.

"Well, I have to admit, I'm excited for this too. I want to see how you four adapt to these new worlds."

"What do you mean adapt?" Luigi asked.

"As I said Luigi, you and Mario as well as Peach and Daisy are too strong for most of these worlds. I will be sending your consciousness into the story and you will be reborn. Now you will have your memories, but it will be as if you were a natural part of that world." Rosalina explained.

"I see." Mario said.

"Sounds fun."

"Oh, I'm so excited."

Peach and Daisy said, but Peach spoke up.

"How long will this take Rosalina?"

"Not to worry Peach. It will be like a dream, where years in the story will only be minutes here. And, if anything comes up, I can always pause the story and bring you back into our world."

"Oh thank goodness. Well what are we waiting for?"

Peach said as she, Daisy, Mario and Luigi got into the beds. Rosalina then flew up to the book.

"Now let me explain this world and how it works before I send you into it. In this world around eighty percent of the people on earth have powers or abilities known as "quirks". Because of this super powered beings are now a part of everyday life and being a superhero is a paid profession." Rosalina explained.

"Interesting." Peach said.

"So kind of like X-Men?" Luigi asked.

"Kind of, but you won't be hunted because of your powers. Now rest your heads and clear your minds."

Rosalina said. The four closed their eyes as they laid down. Rosalina began to channel her powers on the group and the book. They all felt their minds being sent into the book. While Mario and Luigi were used to this, thanks to their adventure with the Pi'illo people, Peach and Daisy were surprised by how this felt. As Mario traveled through the mental warp, he noticed a bright light coming up.

In a hospital in Brooklyn

The sounds of two newborn babies crying filled the room. The babies stopped crying as they opened their eyes. As one of them looked around it began to think.

"So this must be my birth in this world." Mario thought.

He looked over and saw his brother who had also stopped crying. The two started smiling when someone spoke up.

"Mamamia! Twin boys! How wonderful!" Said a man with a mustache connected to his sideburns. (Looks the same as the Mario Bros. movie.)

"Huh, looks just like dad, but why is he a raccoon?"

Mario thought as he noticed the man had fur and raccoon ears. He assumed it must be one of those "quirks" Rosalina had mentioned. Meanwhile, in another hospital located in New York, another couple was celebrating the birth of their baby. As the newborn girl opened her eyes, many thoughts were going through her head.

"So this is my birth in this world. Those must be my parents." Peach thought as she examined the couple looking over her with pride. "They look just like the portrait I have of them, but why does mother look like a cat? Must be her "quirk". Hopefully I can spend more time with them in this world."

(For what Peach's parents look like look of "Peach's parents" by Saiiko on Deviantart.)

And finally, in Texas, a couple was celebrating the birth of their daughter.

"Yee-Haw! Finally, my own adventure. Now let's see my parents. They look just like mine, but why is mom a rabbit?" Daisy thought.

(For how Daisy's parents look, also using Saiiko's interpretation of them.)

"Now that you four are born into this world, the journey can begin." Rosalina said as she started to read the story. "Now while most of the population of this planet have quirks not all quirks are suited to hero work. Take your parents for example Mario and Luigi. While your father, Marcos Mario, has a quirk that gives him raccoon characteristics, it only gives him slightly above average human ability. As such, he works as a construction worker in Brooklyn. Your mother's quirk is "Fireball", which let's her produce small fireballs from her hands. Unfortunately the fireballs are too small to do any significant damage, so she is a full time housewife."

"I see."

"That makes sense."

Mario and Luigi thought.

"As for you Peach, your father's quirk is known as "Energy Projection", where he can create an energy construct of any one of his limbs from said limb. Now while this power would let him be a successful hero, he chose to focus on his hotel business instead."

"Really?" Peach asked.

"Yes, and he is very successful at it. As such, Toadstool Hotels are located in every major continent in the world. And as for your mother, she has a quirk that gives her a cat like appearance. Since it doesn't give her much besides heightened senses, she focused on her career as a supermodel before settling down with your father."

"Sweet."

"And Daisy, your parents run a successful ranch in Texas. Most culinary businesses order from him."

"Cool! And what are their quirks?" Daisy asked.

"Your father's quirk is "Energy workup". He builds up energy in his body the more angry or frustrated he gets. It gets released when he strikes something with either his fist or legs. Your mother's is "rabbit", it gives her the traits of a rabbit."

"Pretty self explanatory."

"Indeed. Now let us move forwards a bit."

Rosalina moved the story forwards five years. It was a strange experience for the four as they experienced every event in the years but also felt time moving faster.

"Now we have moved forwards five years in the world. You are now at the age where children begin to discover their quirks. Mario and Luigi, your quirks are "Multi-form"."

"Multi-form?" Mario and Luigi asked.

"Yes, you have three forms you can access right now. One where you two grow larger and stronger, one that gives Mario fire ball abilities while Luigi gains lighting abilities. And finally, your third form where Mario gains a raccoon body and Luigi gets a fox body. And yes, you two can fly with your tails while in this form."

"Sounds like our power ups." Mario said.

"It is based off of it so it should. Plus you can unlock new forms with proper training and if the right conditions are met."

"Got it!" Mario and Luigi said together.

"And Peach, you gain your mother's cat body quirk, but you also have your own energy projection or shadow in your case."

Peach was confused until a large pink shadow came out of her own shadow.

"Hello there Peach." The pink shadow said.

"Hello there." Peach responded. "Hmm. You look familiar."

"Well I should. I've been a part of you ever since Rogueport."

Peach was confused at first, but then her eyes shot opened.

"Shadow Queen." Peach gasped in revelation.

"Yes Peach, it's been awhile, hasn't it."

"Rosalina, what is this?"

"The Shadow Queen has always been apart of you Peach. Her power has just been greatly weakened since her defeat at the hands of Mario. Hopefully this should help with confronting that, and maybe you can draw out that power and make it your own one day."

"I see your point, well then." Peach turned to the Shadow Queen. "While this was unexpected, let's do our best together Shadow Queen."

Peach outstretched her hand that the Shadow Queen shook in agreement.

"Of course Peach, of course."

"Now, why do you look pink?"

"It's because I am your "quirk" now. But I can get back my form and powers if you give into anger and hate."

"Hmm, ok then."

"What? I wasn't expecting you to agree."

"Don't get the wrong idea Shadow Queen. I won't go full tyrant queen, but you can't solve all problems with kindness and not everyone deserves it. Sometimes you need to respond to violence in kind."

"I'm glad to see you embrace this truth."

"I've had to with some of the adventures I've had."

"Very well then, shall we begin."

"Let's get started."

"Very good, and Daisy, you get a combination of your mother's and father's quirk. Your rabbit quirk gives you enhanced human strength and reflexes even better than your mother's, and just like your father you gather energy, but instead of it being based on your emotions it's based on your actions. The more active you are the more energy you build up in your body."

"Cool! And I'm assuming I can use that energy for attacks." Daisy said.

"Yes, you could use it to supercharge any action you do. But there is something you must be aware of, you can't hold too much energy inside of you. The energy will disperse over time, but if you hold too much inside of you for too long then you can destroy your own heart."

"That seems extreme."

"It's like that for all quirks. Even if they are supernatural appearing they are still controlled by humans who have limits. Even Mario Luigi and Peach have limits that they will soon discover and have to adjust to."

"Okay then. Well let's get to it then."

"Good, now with the discovery of your quirks your parents are all quite proud of you all. And as you grow up there is only one thing you wish to do with those quirks, to become heroes. And there is one hero who stands at the top, All Might. The number one hero not only in Japan, but in the world. Other countries may have their number ones, but even they admire and respect All Might. Watching him save the day with smile gives you a dream, to become the next number one hero. With your goal in mind you know there is one school to that will help you, U.A. High. Throughout your years growing up you train, study, and exercise your bodies in preparation for this. In the final month of your middle school years, you are all brought to your respective principals of the school."

Rosalina explained, once again moving the story forwards. We see Mario and Luigi as they are called into their principal's office.

"Hello there sir, you wanted to see us?" Luigi asked.

"Yes, please take a seat." The principal said.

"Is there a problem sir?" Mario asked.

"Yes, the main one is you being in my office in the first place."

"What!? Did we do something wrong sir?" Luigi asked in fear.

The principal didn't answer. Instead he just slid two envelopes to Mario and Luigi. They grabbed them and opened them.

"This is?" Mario asked as he examined the paper. "A U.A. acceptance letter! Lu, we did it!"

"Alright Mario, but wait. Why is this a problem sir?" Luigi asked the principal.

The principal remained silent, until Mario spoke up.

"Probably because he didn't want us to get those letters. He wanted someone else, like that jerk Spike."

Mario answered, taking the principal's angry look as confirmation. Spike was one of the school bullies Mario and Luigi had to deal with in school. He was a jerk who thought his father's, who owns a successful company, influence and money would bring him everything he wanted in life. Mario and Luigi had a scuffle with him more than a few times. Each and every time the principal tried to pin the blame on Mario and Luigi and let Spike go scott free. But thanks to the friends they made in school and the enemies Spike made, most of the students would stick up for the Mario brothers and some even had video evidence that showed Spike was the one at fault.

"In my opinion, he is more deserving of that letter than you two. Besides, that's not an acceptance letter to U.A., just an acceptance to participate in their exams. You still need to pass." The principal said in a smug tone.

"You sound like your hoping for us to fail." Mario said.

"Not hoping, but expecting."

Mario was about to say something, but he stopped himself and got out of his seat.

"Whatever, come on bro. Let's get out of here."

"Right Mario."

Mario and Luigi left the office. Later on when they were leaving school, they were confronted by Spike.

"What do you want Spike?" Mario asked in an annoyed tone.

"I want to know what you two losers did to cheat your way into getting that U.A. acceptance letter." Spike answered.

"What!? We didn't cheat. We worked hard and studied to get these letters." Luigi rebutted.

"Yeah right. Why would a school like U.A. want the stupid Mario brothers?"

"Because we worked hard for these letters Spike. Where's yours?"

Mario asked, Spike just clenched his teeth in anger at this question.

"Maybe if you actually worked for it, instead of expecting daddies influence and money to get it for you, you might have gotten one also."

Spike was seething at this point. He was about to use his quirk to attack Mario, but then noticed some students nearby starting to record this. He didn't want a repeat of the last time he got caught, so he stopped himself.

"Whatever Mario. Go take that exam, it's not like you or your dumb brother will pass it."

Spike smugly said as he walked away. Mario was about to say something back when Luigi stopped him.

"Forget about him bro, let's get home already."

With that the Mario brothers left for him. When they arrived, they were both pulled into a big hug from their mother, Louise Mario.

"I'm so proud of you two! All of your hard work is finally paying off." She said with pride.

"Thanks mom." Luigi said.

"Hey, there's our two future heroes." Marcos Mario said, just getting home from work.

"We're not accepted yet dad, we still need to pass the acceptance exam." Mario pointed out.

"I'm sure you and your brother will pass with flying colors. Now I hope you two have been practicing your japanese, because my transfer to one of the company's japanese branches has been approved. Once you two finish school we're moving to Japan."

"Nice, and don't worry, we've been practicing our Japanese regularly dad." Luigi answered.

While the Mario brothers and their parents were celebrating, we move to Peach and her parents in their manson located in Manhattan.

"Congratulations my little princess." George Toadstool, Peach's father, said to Peach.

"Thank you father." Peach said. "I'm glad my efforts are paying off."

"Of course they are dear." Melody, Peach's mother, began. "You have been training for this ever since you started middle school. There is no way you could fail."

"Thank you for your confidence mother."

"Good, now as for you living arrangements, we have already bought a penthouse in Japan for us to stay at. But you will have to go ahead of us, we will be stuck here as I tie up some loose ends before we join you." George explained.

"I understand father."

"You know sweetie, I could come with you also if you want." Melody offered.

"It's fine mother, but I can take care of myself. Besides, I won't be alone. I'm assuming the penthouse has maids and cooks like here right? And Toadsworth will be coming with me as well." Peach answered.

That is when an elderly butler with a brown mushroom head came in with tea.

"Your afternoon tea sir."

Toadsworth said while handing a cup of tea to George.

"Thank you Toadsworth." George said accepting the cup.

Toadsworth was an elderly man who has been serving the Toadstool family before Peach was born. His quirk just gave him a mushroom head.

"Thank you Toadsworth." Peach said accepting a cup of tea "I can't believe how much he looks like my Toadsworth." Peach thought to herself.

"Thank you Toadsworth, and please watch over Peach while we're stuck here in the states." Melody said.

"Of course I will Miss Melody. I will protect her with my life." Toadsworth replied.

"I will be fine Toadsworth." Peach said.

"Now then." George began. "Do you remember Daisy?"

"Of course I do father. She's my best friend." Peach answered.

In this world, George was great friends with Richard, Daisy's father. And as such, Peach and Daisy had met many times and had become as close as sisters.

"She will be going with you Peach." George said.

"Really?"

"Yes, she also got an acceptance letter from U.A. and will be attending the entrance exam as well."

"I see, and when will she-"

"PEACH!"

Daisy yelled as she burst into the dining area and tackled Peach into a hug.

"Daisy! When did you get here?"

"Just a little while ago."

"Daisy!" Richard yelled as she came into the room. "How many times have I told you not to do that?"

"Don't worry about it Richard, she's just excited. She did just get a letter of acceptance from U.A. after all." Lillian, Daisy's mother, said.

"It doesn't excuse her behavior though."

"It's quite alright Richard." George said.

"If you say so George. My thanks for taking care of our daughter while she's in Japan."

"No need for thanks Richard. I think of you like a brother and Daisy as a niece. It is no trouble for us to do this."

"Our utmost thanks George, and Daisy."

"Yes dad?"

"I expect you to be on your best behaviour while your in Japan. Got it?"

"Of course dad."

"Good, now why don't you and Peach go catch up. I'm sure you two have much to talk about. We need to discuss things between ourselves."

"Okay, come on Peach."

Daisy said as she pulled Peach along with her.

And that's the end of the chapter thank you for reading and feel free to leave a review. Once again thank you and have a nice day. And as for personalities, I will be using a combination of Nintendo High and the Mario Movie.