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

Chapter 1: Star Children appear in Japan

We cut back to the UA testing grounds, the examinees were still in shock at what they saw. First a whole opens up in the sky and five light flying out is strange enough, but for it to open up again and these strangers come out and defeat a zero point robot like nothing. No way could this be real, it has to be another part of the entrance exam they thought. Suddenly two small yellow orbs flew out from under the mustache men's caps.

"Mario, Luigi. A power star." They said in unison.

"Where?" They said in unison. Starlow and Starlee, the two small orbs, pointed towards Midoriya.

"Hey kid, look we don't want to cause any trouble. But we need that star you are holding in your hands." Mario said as he slowly walked up to Midoriya. Suddenly a loud crash was heard behind Mario, Luigi and Peach as something had crashed into the ground behind them.

"Fear not children, for I am here." Said a towering buff man. This was All Might, the number one hero in Japan. "Now you three, what are you doing here? And what are your intentions with the children?"

Peach walked up to All Might, "Okay look mister..."

"All Might." All Might was confused at how this woman didn't know him, but then again she did just fall from the sky.

"Okay, Mister Might, we have no intentions of harming these children. We are only here for the power stars." Peach explained.

"Power stars?"

"Yes Mister Might, like the one that boy over there is holding." Peach pointed to Izuku Midoriya who was clutching onto the star at this point.

"Hmm... So they only want these stars, but why? And what are these power stars? Can these people be trusted?" All Might thought to himself. "Very well, if what your saying is true then you wouldn't have any problems coming with me for questioning now would you?

"Of course not Mister Might, we will come quietly." Peach responded getting nods from Mario and Luigi. Suddenly Starlow flew in between Peach and All Might.

"You can't be serious Peach we need to get the power stars as soon as possible!" Starlow shouted.

"Oh, and who is this little sphere?" All Might asked.

"My name is Starlow you muscle brained jerk! And we are on an important mission to gather the power stars so butt out!"

"Oh ho, quite feisty aren't you?" All Might teased making Starlow angry.

"Starlow stop!" Peach called out. "We are strangers in this world, we must abide by their rules or else we are no better than criminals."

"But, but, we were criminals in the world before this." Starlow stated drawing the attention of everyone there.

"Yes Starlow, but only because that government was crooked and corrupt. We had no choice, not every world is going to be like that." Peach explained. Starlow looked towards Mario for help, but he agreed with Peach on this.

"Fine!" Starlow pouted as she flew under Mario's cap.

"We're very sorry about her, she can be very direct." Peach said to All Might.

"No need for apologies, I understand. Now if you'll come with me." All Might started guiding them to the observation building where the other teachers were. But before continuing he stopped in front of Midoriya. "Young man, I'll need that star in your hands."

"Oh, right." Izuku stuttered as he handed the star to All Might.

"So this is the power star." He thought to himself, as he was examining it he began to glow faintly. "What's this? I feel as though my time limit has been extended. No, that I don't have one at all, that my body is back in it's prime." He then turned to Peach, "I see why these are so important now." Peach nodded with understanding as her Mario and Luigi walked into the building with All Might.

Izuku had a million thoughts cross his mind, mostly on who or what are these people and what is that star? He was broken out of his thought process when recovery girl, a small old lady, came out examining and treating all the examinees.

In the office of Principal Nezu

Principal Nezu, the Principal of UA academy and a small mouse like person, was sitting at his desk with two heroes at both of his sides. These were Aizawa, the erasure hero who can erase people's quirks by looking at them. And Midnight, the sexy heroine who has the ability to put people to sleep with an aroma that comes from her skin. All Might then walks in with the power star and the three strangers that fell out of the sky.

"Here you go Nezu." All Might said as he put the star down on Nezu's desk.

"Thank you All Might and as for you three." Nezu turned to Mario, Luigi and Peach. "Please have a seat we have much to talk about."

Mario and his friends took their seats and Nezu was inspecting the power star on his desk. While this was happening Mario noticed the steely gaze from the man who looked sleep deprived(Aizawa). And, while not as fierce, the gaze of a scantily clad woman(Midnight). Just then Nezu put the star down and began to address the three Mushroom Kingdom inhabitants.

"Well, after inspecting this star I have come to the conclusion..." Everyone in the room listened for his response. "That I have no idea what it is." Nezu's comment made everyone face palm.

"Please take this seriously sir." Aizawa said in an annoyed tone.

"I'm sorry, just thought I would liven up the mood a bit. But in all seriousness, even if I don't know what this is, we know it fell from the sky just like you three and that four more of them seem to have scattered over Japan. So, I would like to know how dangerous these power stars are if at all."

"Well, Mister Nezu?" Nezu nodded affirming that Peach got his name right. "Yes, the power stars can be very dangerous. If someone can fully utilize their power they can conquer the world or make a new one." Peach's words shocked the heroes in the room. How could something so small have so much power. That is when All Might whispered something into Nezu's ear, he just nodded.

"Okay then, we'll definitely make a note of that. Now you three, you have said you are here to collect the power stars, but I cannot entrust such powerful objects to people I know nothing about. So, can we start with your names."

"Of course, I am Princess Peach, monarch of the Mushroom Kingdom." Midnight raised an eyebrow at her statement.

"You are the ruler of the kingdom and yet your a princess?" Midnight asked receiving a nod from Peach. "What happened to the King and Queen."

"Oh, my parents sadly passed when I was just a baby. When that happened my attendant Toadsworth and a council of advisors ran the kingdom until I took over at the age of fifteen." Peach explained.

"Oh my, I am sorry about that Peach."

"No no, it was an honest question and you had no way of knowing."

"Well, now that your introduction is done what about you two." Nezu said pointing towards Mario and Luigi.

"I'm-a Mario."

"And I'm-a Luigi."

"And we're the Super Mario Bros." They said in unison.

"I see, and what are jobs in the Mushroom Kingdom?"

"We're plumbers." Mario answered, Nezu quirked and eyebrow at this statement as well as the rest of the heroes in the room.

"And is that your only job?"

"No, we also drive race karts during race season, tennis, golf, soccer all sorts of sports. And we are also licensed doctors as well as carpenters, we do a little bit of everything. And we also save the Mushroom Kingdom from danger whenever we need to." Luigi clarified.

"Really should have led with that." Aizawa stated.

"Well the Mushroom Kingdom isn't in danger all the time, so we decided to lead with our day jobs." Mario said while rubbing the back of his head.

"If I may interject." Peach interrupted. "These two are the greatest heroes in the Mushroom Kingdom, they have not only saved the kingdom, but the world and our universe from destruction time and time again." Peach's statement caused some shock and curiosity among the heroes.

"My, with a record like that they trump even All Might, our symbol of peace." Nezu stated.

"Hey now, this isn't a competition." All Might said.

"Oh I'm sure Mister Might here is very heroic. The way all those kids faces lit up when you arrived just proves it." Peach said with Mario and Luigi giving a thumbs up in agreement. All Might just rubbed the back of his head while blushing.

"My my, receiving praise from those from another world just solidifies achievements as our symbol of peace." Nezu stated while getting up from his seat. "That will be all for now, I will make living arrangements for you three and we will conduct a more thorough interview tomorrow. For now we need to address the interruption of the UA entrance exam."

"You mean that big robot we destroyed?" Luigi asked.

"Yes, you three interrupted a very important event for our students." Aizawa said in an annoyed tone.

"Now now Aizawa, it was an accident. I'm sure they didn't mean to. Now if you three will follow me." Nezu lead the three out of the room and Midnight followed. Before Aizawa could go he turned to All Might.

"So, what is your impression of those three? Do you think we can trust them?"

"I can't say for sure, but I do not sense any evil intentions from them. I guess we'll just have to wait and see for now." Aizawa seemed to be unsatisfied with this answer, but before he can ask anymore questions Nezu was calling for him to follow. After Aizawa left the room All Might gazed at the power star left on the principal's desk. "The power I felt from that star, I truly hope we can trust you Mario Bros."

At Izuku Midoriya's apartment

Izuku had gotten home after the exams and was feeling disappointed. Even with the interruption of those three strangers there was no way he had gotten enough points to pass. He was lying down on his bed when he received a call from All Might.

"Yo young Midoriya, how are you doing?"

"Not so good All Might. I don't think I'll pass."

"Listen, thanks to that interruption those who didn't get enough points will be given a second chance within a week. You should be receiving a letter about it soon."

Midoriya's face lit with excitement, before it dawned on him. "So if you're telling me about this, then that definitely means I didn't pass."

"Look, don't focus on that kid. Even without that interruption I'm sure you would've passed. When that girl was in danger I saw you were about to move into action, at no benefit to yourself. That right there is the mark of a true hero."

Midoriya began to tear up at All Might's encouragement. "So better get ready, because for the next week we'll be training your body on how to use your quirk."

"Yes sir!"