AN: Hello, my readers! I want to thank "Game2002" the creator of "Justice of Two Worlds", one of my favorite stories and the one that inspired me to create a crossover of 'Marvel' with 'Boku no Hero Academia' that no one would have thought of. There will be some things taken or copied from that story, but still, I hope you like it.
The timeline of Boku no Hero Academia is set after the third season.
I don't own anything.
As many of you know, a long time ago, a baby was born with a strange glow inside him that later gave him a superpower. Over time, more children, at most 80%, were born with the same glow, which became known as Quirk.
Due to the large number of people with superpowers, governments decided to make the dream of becoming heroes something authentic and professional.
But you can't be a hero just by having a Quirk and a costume. For that, you need to study the basics at a hero academy. Once they had completed the studies and the proper procedures, they would receive a license that would allow them to practice the craft of heroes.
With so many people with so many different powers, you would think there would be no such thing. Until now...
It was midnight in the Japanese city of Musutafu.
Normally, at this hour, everyone would be asleep, but that was not the case for class 1-A of the U.A. academy.
In a closed shopping mall, the class had been taken for a special exercise by their teacher Shouta Aizawa, also known as Eraser Head.
Shouta let out a throat clearing to get the attention of all his students.
"As I said yesterday, this exercise will be special. As you know, heroes must be prepared for anything, so now you will be doing night patrols." said Shouta.
"Night patrols? I would have preferred to keep sleeping." commented Denki.
"Good thing we all rested earlier so we could be rested and prepared." said Mashirao.
"Thanks to the headmaster, we have obtained permission to use this place as a training ground. You will be divided into teams of two to be chosen by drawing lots. Once the teams are formed, you will patrol a particular area of the site. Some members of the school staff will act as lowly villains who have come to steal or something else. Your task will be to track them down and capture them. Your grade will depend on how you act." Shouta reported.
By a drawing of lots on the basis of papers, the teams were formed.
"Alright, now that the teams are formed, you may begin." said Shouta before getting into his sleeping bag. "Wake me up if something happens."
"It's not fair. He can sleep while we do all the work." said Minoru.
The team of Izuku and Tenya were patrolling an area of the mall.
As they walked, Izuku couldn't help but let out a yawn. As much as he was excited about the idea of the special exercise, he had to admit that it was tiring to do it in the middle of the night.
"Come on, Izuku! Don't be like that now! Heroes must remain energetic at any time of the day to stop villains! Our task is to find the villains and stop them from robbing the shops!" said Tenya waving his arms like a robot.
"You're right, Tenya. I can't look tired when the villains are full of energy. Heroes have to stay awake in the face of any threat." said Izuku with a smile.
"That's right. Keep your eyes and ears open at all times, Izuku. If I remember correctly, there's a bank near here. If there are any villains nearby, then that's where he'll go." said Tenya.
"I agree. Let's go." said Izuku agreeing with his partner.
The two picked up the pace to get to the bank quickly. As they turned a corner, they stopped when they saw someone standing in front of the bank.
The man looked very muscular and wore some sort of dome-shaped helmet on his head along with a suit of armor.
"Who... Who is that?" asked Izuku before Tenya covered his mouth and they both stepped back to avoid being spotted by the 'villain'.
(AN: When someone speaks in English, I'll underline it)
"Bah. What would I need Japanese money for? There's no point in stealing it." said the villain in English before walking away from the place.
"That was... English?" asked Izuku confused by the villain's language.
"Yes, he did. Which is weird." said Tenya.
"Do you know how to speak English? I only know some basic stuff." said Izuku.
"I took private lessons so I'm pretty fluent." said Tenya.
"So, do you know what he said?" asked Izuku.
"Yes. He said there was no point in stealing Japanese money." said Tenya translating what the villain said.
"What does that mean?" asked Izuku confused.
"No idea, but now we must concentrate on the task set before us." said Tenya before coming out of hiding.
"Wait Tenya." said Izuku, but it was too late, as his partner stopped behind the villain.
"Stop right there, villain!" shouted Tenya getting the villain's attention. "I don't know why you didn't rob the bank, but as heroes, it's our duty to stop your misdeeds!"
"He does take it seriously." said Izuku surprised at how his partner was acting as he stood next to him.
Turning around completely, the man with the dome on his head gave them a look of confusion.
"What are kids doing out here in the middle of the night?" asked the villain.
Another team, consisting of Katsuki and Shoto, was walking along a path lit by street lamps, looking for fake villains.
"Come out now, you cowards! If you really are villains, come and let me beat you up!" shouted Katsuki.
"Villains won't come out just because you call them out, the task is to look for them." said Shoto reminding him of what the teacher told them.
"I know, but I have my own way of doing things! Seriously, why did I have to be your partner?" said Katsuki complaining.
"That's what I'm asking myself." said Shoto calmly.
"You want a fight, you half and half bastard?" asked Katsuki very angrily with small explosions showing on his hand.
Suddenly, they noticed a glow from a distance. Feeling suspicious and curious, the two ran towards the source of the glow. Katsuki was about to turn a corner, but Shoto grabbed him and pulled him back with the intention of staying hidden.
Peering out carefully, the two saw a man with a ponytail, a mask and strange metal armor robbing a jewelry shop. But what struck them most was that near the jewelry shop was a strange blue portal.
"What the hell…?" asked Katsuki when he saw the portal.
"He must have come out of that strange portal." said Shoto analyzing the situation.
"Who cares about that? He's a villain and I'm going to kick his ass." said Katsuki before running towards him.
Shoto let out a sigh of mental frustration at his companion's impatience before following him.
The two of them stopped at the entrance of the jewelry shop that was being robbed by the mysterious villain. Shoto intended to catch him by surprise with his ice power, but...
"Hey, you!" shouted Katsuki catching the villain's attention, who turned around to see them. "You think you can just break in and steal while we're here?"
"Who are you brats?" asked the villain.
"Speak Japanese! I don't understand a word you're saying!" shouted Katsuki frustrated that he didn't understand him.
Instead of answering, the villain made whips that emitted electricity come out of the gauntlets of his armor, much to the surprise of the two students.
"I'm sorry, but I don't know what you're saying. If you don't want to get hurt, you'd better leave. I won't hold back just because you're kids." said the villain.
"Are you the mock villain of our task?" asked Shoto in perfect English.
"What? How do you know how to speak English?!" asked Katsuki surprised that his partner could speak English well.
"I had lessons." said Shoto.
"Well, that makes things easier. As for your question, I don't know what you're talking about. I'm a real villain. Now, I'm in a hurry to get back to my world, so you'd better stay out of my way." said the villain.
Shoto was a little confused about a certain word used by the villain, but he had to concentrate on the current situation.
"If you are a villain, then we will have to stop you." said Shoto while covering his right hand with ice.
"Finally something we agree on." said Katsuki with an evil smile.
The team of Ochaco and Tsuyu were looking around their area for fake villains.
"Do you think we'll find any villains around here, kero?" asked Tsuyu.
"I'm not sure, but we'll run into one eventually. We have to try just as hard as the others." said Ochaco with a smile.
"You're right." said Tsuyu.
It was then, as they rounded a corner, they gasped in horror at the sight of U.A.'s professional heroine and teacher, Thirteen, collapsed on the ground.
"Oh my God!" exclaimed Ochaco, kneeling down beside the professional heroine to examine her.
"What happened to her?" said Tsuyu.
Before Ochaco could suggest anything, she noticed something out of the corner of her eye. Looking up, she could see a strange blue portal near the entrance of an antique shop, but what struck her most was that there was a man inside the shop.
The man looked like a normal person, except for the strange metal arm on his left side.
It didn't take a genius to know that this man was a villain.
"Did that guy knock her down?" asked Ochaco a little nervously.
"I get the feeling he's not one of those fake villains we should be looking for." said Tsuyu.
"We must stop him! I won't let him get away with it!" said Ochaco.
"But he's a real villain." said Tsuyu.
"It's not like we haven't faced villains before. This will be our chance to show the fruits of our training." said Ochaco in a determined manner.
With a nod from the girl with the frog Quirk, the two girls entered the antique shop.
"Hey, you! You're not stealing anything today!" shouted Ochaco drawing the attention of the villain, who turned around to see them.
"Well, well, well. What have we here? Are you ladies going to a Halloween party?" asked the villain.
"Do you speak English? Do you know how to speak English?" asked Tsuyu to her companion.
"Um... Just the basics like 'Hello', 'Goodbye', 'Thank you',..." said Ochaco sweating nervously.
"Oh, don't worry about the language. I can understand you and speak it." said the villain.
"Really?" asked Ochaco surprised at that.
"When you tend to do business all over the world, you tend to learn a language or two." said the villain.
"Well, that will make things easier." began Ochaco giving the villain a straight face. "How dare you hurt a member of the academy staff. You won't get away with this!"
"And what are you planning to do? Scare me with your hero costumes?" asked the villain in a mocking tone.
"We're training to be heroes! We may not be fully trained, but we have what it takes to stop you!" said Ochaco.
"Oh, well. That changes things." began the villain before pointing at them with his metal prosthetic, which began to charge energy. "I guess I won't have to hold back."
Another team, consisting of Momo and Eijiro, was inspecting another area for a fake villain.
"Joo. This is boring. When will these villains we're supposed to defeat show up?" asked Eijiro, putting his hands on the back of his head.
"You have to be patient. That's what this task is all about." began Momo. "Besides, it's not like they're just going to appear out of nowhere."
Suddenly, shortly after saying that, something crashed into the wall near them. When the smokescreen cleared, the two companions were surprised to see the injured and battered school staff member, Hound Dog.
"Hound Dog? What happened to you?" asked Momo with concern.
Hound Dog groaned as he got up.
"Get out of here, kids. It's too dangerous." said Hound Dog without even looking at them.
"Why? What's going on?" asked Eijiro.
His answer came when the two students heard the sound of footsteps approaching. They turned their heads to see a woman in a revealing red suit with yellow lines with a sheath covering only her right arm and revealing her belly button, a black belt with a gold buckle around her waist, red colored trousers and yellow boots.
Wrapped around her right arm was a chain attached to a spiked ball.
"Oh, what's the matter, doggy? Are you tired of playing?" asked the woman in English.
"Who is that woman?" asked Momo.
"She's not part of our assignment, is she?" asked Eijiro.
"No. She's a real villain." said Hound Dog.
"I'm sorry, but as I said before, I don't understand what you're saying." said the woman before throwing her spiked ball towards the doggy hero.
Hound Dog jumped to the side to dodge the ball, but he didn't expect the woman to yank the chain, causing the ball to spin on its course and wrap itself around the doggy hero. With one more tug, the woman pulled him towards her and hit him in the head, knocking him down in the process.
Momo and Eijiro were shocked to see a professional hero being defeated, though surely, the fact that he was badly wounded worked in the villainess's favor.
The villain approached him while swinging her spiked ball. She placed her foot on the fallen hero's chest and prepared to deliver the final blow, but then, she noticed a grenade approaching out of the corner of her eye.
She stepped away from the fallen hero in time to avoid the explosion and looked up to see that it was Momo who was responsible.
"Stop right there!" shouted Momo in English.
"Can you speak English?" asked Eijiro with surprise and confusion.
"Oh, I see you have some tricks up your sleeves. I hope you're better than that mutt." said the villainess as she prepared to fight.
"As my partner said, we are heroes and it is our duty to stop you!" said Izuku.
The muscular man was silent for a few seconds until he burst out laughing loudly, much to the confusion of the two students.
"Are you kidding, you think mere brats can take down Juggernaut?" asked the man now recognized as Juggernaut.
"Of course I do! Get ready, villain! I'm going to beat you!" said Tenya.
Activating his Quirk, Tenya launched himself at high speed towards Juggernaut, who didn't move a bit. Revving up the engine of his legs, he launched a horizontal kick at the muscleman's side, but he didn't even flinch and grabbed him by the leg to lift him up to eye level.
"Was that supposed to hurt? It didn't even tickle!" said Juggernaut before throwing Tenya into a wall.
"Tenya!" shouted Izuku worriedly before rushing to his side. "Are you alright?"
"I'm fine." began Tenya as he stood up. "You look like a very strong person and that armor is tougher than it looks."
"Since I couldn't steal anything, I hope you can at least entertain me." said Juggernaut before charging towards them.
The two students moved out of the way before Juggernaut hit the wall behind them, causing a crack so large that it destroyed part of the building.
"Unbelievable. What a force. Could that be his Quirk?" asked Izuku startled by the 'fake' villain's display of power.
"Wait! This is supposed to be a task! No need to overdo it!" shouted Tenya.
"Task? What are you talking about?" asked Juggernaut.
That just made Tenya a little confused.
"Y-you're not the simulated villain we're supposed to capture?" asked Tenya getting nervous.
"I'm not playing any child's game!" said Juggernaut making the Engine Quirk student more nervous.
"Izuku... I think we've stumbled upon a real villain." said Tenya.
Izuku was taken aback by that information as he looked with a bit of fear and nervousness at the villain.
"A... A real villain?" asked Izuku.
Juggernaut raised his fists and slammed them into the ground, causing it to shake as he sent out a ripple of expansion. Both students were knocked down by the wave several meters.
"We have to run and warn the professional heroes! We're not quite ready for something like this!" shouted Tenya.
As much as he wanted to stay behind to take care of the villain, Izuku had to admit he was right. He may have faced villains like Tomura Shigaraki, Stain and Muscular, but this villain seemed different from the others, in fact, his strength reminded him of the Nomu he faced against All Might and was on par with him, so he wasn't an opponent to underestimate.
"You're right! Let's go!" said Izuku as the two got up and started running in the opposite direction of where the villain was.
However, within seconds of starting to run, Juggernaut landed with a leap right in front of them.
"Hey! First you want to fight and now you want to run away? It won't be that easy." Juggernaut said.
"Damn. He's got us." thought Izuku before activating his Quirk, causing green lightning to flow through his body. "There's no choice. If we want to get away from here, we'll have to fight."
Like a bullet, Izuku launched himself towards the villain.
"Izuku!" shouted Tenya trying to stop his friend, but it was too late.
"Detroit Smash!" shouted Izuku slamming his fist into Juggernaut's armored stomach, but to the green-haired man's surprise and horror, he didn't move a bit, there wasn't even any signs of damage to the armor.
"W-What? How is that possible? He could have withstood a hit from the Full Cowl!" thought Izuku in horror.
Without giving the villain time to react, Izuku proceeded to punch and kick every part of his body, but it was almost like hitting a block of concrete, as even Izuku could feel the hardness of the villain's skin and armor, who showed no signs of pain at any point, only discomfort.
"Enough!" shouted Juggernaut before punching Izuku, sending him flying a bit.
Izuku was in a lot of pain from the blow he received, a sign that the villain was almost as strong as All Might.
Izuku was thinking of some way to defeat him or distract him as he rose, but suddenly, he noticed something out of the corner of his eye. Turning his head, he gasped as he saw a blue portal.
"A-A portal?!" exclaimed Izuku in surprise.
"You're strong, brat, but Juggernaut is stronger!" said Juggernaut.
Juggernaut started to run towards Izuku, but when he was halfway through, a kick to the face forced him to stop. He jerked his head from the blow and when he opened his eyes, he found Tenya.
"Damn brat." said Juggernaut raising his fist to strike, but Tenya moved out of the way in time to dodge it, letting the villain hit the ground he was standing on, smashing him in the process.
"Izuku, are you alright!" asked Tenya standing next to his partner.
"I'm fine. You weren't lying when you said I was very strong and tough." said Izuku.
"I know. That's why we should alert the professional heroes to take care of him." said Tenya.
"By the way... That portal?" began Izuku pointing to the portal he had found. "Do you think this is a League of Villains thing?"
"It's true that there is a member who can make portals, but this one is blue and the ones that guy made were black." said Tenya remembering his encounter with that villain.
Juggernaut leapt at them with his hands clasped together and over his head. Both students moved out of the way in time to dodge the villain's attack, leaving the ground affected by the blow to shatter badly.
The villain wasted no time in charging towards them.
Izuku put pressure on his finger.
"Delaware Smash!" shouted Izuku releasing his finger, launching a blast of wind towards the villain.
He expected it to stop him or something, but was shocked when the attack passed him by as if it was a simple gust of wind.
Tenya moved out of the way, but Izuku was so surprised by the above that he didn't have time to react when Juggernaut hit him, being sent straight into the portal.
"IZUKU!" shouted Tenya as he saw his partner disappear.
Juggernaut followed the green-haired boy to the other side of the portal. Tenya wanted to warn someone, but he knew his friend wouldn't last long against this villain and he also didn't know what was on the other side of the portal. Knowing it was a reckless move, he decided to cross the portal, which closed shortly after.
"Let's see how you handle this." said the villain before throwing his whips towards Katsuki, who couldn't react in time and was enveloped by them.
Soon after, the whips emitted an electric shock that made the user of the Blast Quirk scream.
Before Shoto could react, another whip shot out from one of them like a branch, wrapped itself around him and then electrocuted him, making him groan in pain.
Enduring the pain, Shoto was able to use his ice side to freeze the whips, managing to free him and his partner.
"Damn! What kind of Quirk was that?" asked Katsuki angrily.
"I don't think it's a Quirk, it seems to come from his suit." said Shoto analyzing the villain.
"I don't care, I'm going to take that guy down!" said Katsuki throwing a series of blasts at the villain, who jumped to the side to dodge it.
"Nice trick, but you don't think it will be that easy." said the villain.
Before anyone could say anything, the whip that Shoto cut off moved mysteriously like a snake and coiled around Shoto again, making him groan in pain at the electrocution.
The second whip moved to coil around Katsuki, but he realized in time and destroyed it with an explosion. Then, with a small explosion, he released Shoto from his whip.
"Thank you." said Shoto.
"Don't thank me. If anyone is going to defeat you, it will be me." said Katsuki.
Without answering him, Shoto threw a series of ice icicles from his right hand at the villain, but the villain generated another pair of whips and used them to destroy some icicles while dodging the rest.
He then tried to whip them with his whips, but Shoto erected a wall of ice to protect them.
"Hey, I'm not done yet!" said Katsuki destroying the ice wall with a blast and lunging towards the villain to hit him.
The villain dodged and reeled him in with one of his whips, electrocuting him in the process and making him groan in pain.
However, Katsuki was able to resist long enough to grab the whip.
"I've had enough of you!" shouted Katsuki pulling the whip, causing the villain to be thrown into the wall of the jewelry shop with such force that he ended up going out into the street.
The two students went out into the street to continue confronting the villain.
The villain got up from the ground with a groan as he shook his head.
"Agh. I don't have time to waste on these brats." said the villain before jumping through the portal.
"Hey! Come back here! I'm not finished with you!" shouted Katsuki.
"Wait. We don't know what's on the other side of that portal. We should alert the professionals." said Shoto mentioning the most logical action.
"Who cares about that? I'm not going to let some Quirkless villain mock me!" said Katsuki angrily before passing through the portal.
"Wait!" shouted Shoto trying to stop him, but it was too late. He let out a growl of frustration at his partner's recklessness and temper.
At first, he thought of his original plan and alerting a professional hero, but then again, he didn't know what was on the other side of that portal. Fearing that Katsuki would get himself into more trouble, he decided to follow him through the portal, even though he knew it was a bad idea.
However, shortly after he crossed it, the portal disappeared without a trace.
The villain shot a sonic wave from his prosthetic arm at the girls, but they dodged out of the way.
Ochaco touched a piece of furniture which, thanks to her Quirk and to the villain's surprise, began to float in the air. She then grabbed it and threw it towards the villain, but he shot another sonic wave to destroy it.
He aimed his prosthetic weapon at the girl with the Gravitation Quirk, but Tsuyu used her tongue to grab it and pull it towards her, but the villain pulled in his direction to avoid it, thus starting a tug of war.
"Agh. Damn frog girl." said the villain.
"What that thing? Is it part of your Quirk or something?" asked Tsuyu as she pulled the weapon with her tongue.
"I don't know what you're talking about!" said the villain before taking advantage of the situation to shoot a sonic wave at her, but she released her tongue in time to dodge the attack.
"Take that!" shouted Ochaco throwing another piece of furniture towards the villain, but he shot another sonic wave that destroyed it.
However, that served to make Tsuyu jump shortly after the furniture was destroyed and hit the villain in the face with her feet, sending him crashing into another piece of furniture.
Just as the villain got up, he looked up to see a bunch of objects floating in the air, courtesy of Ochaco.
"Meteor Storm!" shouted Ochaco deactivating her Quirk, causing the objects to fall on him like a meteor shower, knocking him down in the process.
"Yes! We did it!" exclaimed Ochaco with joy as she high-fived his partner.
"That was easier than I thought." commented Tsuyu.
Just then, the pile of objects exploded, with the villain rising up with a look of rage.
"I seem to have underestimated you, but that won't happen again." said the villain before shooting a sonic wave at the girls.
Because they were so focused on their brief victory, they didn't have time to react, so they were hit by the wave, ejected to the outside and knocked down.
Both girls started to get up, but before they fully did, some sort of invisible force held them in place, as if they had been frozen.
"W-what's going on?" asked Ochaco before turning her gaze to the villain, who had used his prosthetic weapon to launch some sort of paralyzing wave.
"Hehe. Looks like you weren't such a big deal after all." said the villain before raising his prosthetic arm, which caused both paralyzed girls to be lifted into the air. "You know? I know a bunch of people who would pay a lot for a couple of girls with special powers like yours."
The villain began to advance towards the portal with the two girls as prisoners. They both tried to free themselves, but the paralyzing wave prevented them from lifting a finger. Just as the villain was about to cross the portal, Tsuyu managed to open her mouth wide enough to spit her special liquid into the villain's face.
The villain began to scream in pain from the stinging liquid, forcing him to deactivate the paralyzing wave and freeing Ochaco and Tsuyu from their state. The two fell to the ground and quickly got up to face the villain once more.
However, due to the state of pain and rage he was in, the villain inadvertently shot a sonic wave at the girls, who, unable to react in time, were hit directly and thrown to the other side of the portal.
The villain managed to wipe the liquid off his face and looked back at the portal with a look of fury.
"Those brats are going to pay for this." said the villain before crossing the portal to meet them.
Soon after, the portal closed without a trace.
The villain spun her spiked ball before launching it towards Momo.
"Watch out!" shouted Eijiro activating his Quirk and pushing his partner out of the weapon's path to take the impact himself, which led to him being pushed by the ball until he hit a wall. As the villain withdrew her weapon, Eijiro could be seen with some cracks on his body. "Damn. That thing is heavy. She must have a Quirk of strength if she can lift it like it's nothing."
"Mmm. You're tougher than you look, kid." said the villainess.
Suddenly, she noticed something out of the corner of her eye and turned to see Momo running towards her as she pulled a staff from her body, much to the villain's confusion.
Momo tried to hit her with her staff, but she raised her left arm to block it completely, much to the surprise of the student with the Creation Quirk.
With a wave of her arm, the villainess pushed Momo away from her.
"You're going to have to do better than that." said the villainess.
Then, she heard a scream and turned to see Eijiro running towards her with the intention of punching her, but she moved out of the way of his fist and then kicked him in the stomach, knocking him backwards while clutching the area affected by the blow.
Momo got up and took advantage of her partner's brief distraction to try to hit the woman again with her staff, but she caught the staff with her bare hand and then, with a swing, sent Momo hurtling towards the portal, crossing it in the process.
"MOMO!" shouted Eijiro as he saw what had happened to his companion.
The woman gave him a smile before turning back towards the portal and crossing it.
Worried for his companion, Eijiro began to run towards the portal with the intention of helping her, but before he stepped through it...
"Wait!" a warning made him stop and turn around to see Hound Dog lying on his chest and trying to get up, but he fell back to the ground due to his injuries. "Don't go there! It's too dangerous!"
"I can't leave Momo in whatever's behind that portal! I'm sorry, but waiting isn't what a man would do!" said Eijiro before stepping through the portal, which, shortly after, closed.
"Tch. Damn. Kids these days don't listen to their superiors." said Hound Dog cursing the situation.
"Hound Dog!" said hero turned his head in the direction the shout came from to see his fellow school staff member, Eraser Head, running towards him and kneeling beside him. "I heard sounds of fighting. What the hell happened?"
"Villains... Kids... Portal..." was the last thing Hound Dog said before slipping into unconsciousness.
Shouta's eyes widened in horror as he understood what his companion was saying. What had happened in that camp had happened again, but this time, worse than that. He had to alert the headmaster and the professional heroes to deal with the situation before it got any worse. He just hoped his students were safe.
AN: And here we have the first chapter. As I said, there will be things that will be copied from the original idea of "Game2002", but in the next chapters, things will be very different. Just wait and follow the story.
Another thing I want to tell you is that, because this story is quite long and I would like to finish it before the end of the year, I will upload new chapters every few days. So get ready, readers, because it's going to rain chapters.