A/N:

Hey, so this already exists on my Fanfiction.net account but I thought as a New Year's Bonus, I'd bring it here! Saves Wattpad users the trouble! Please enjoy!

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=| Warped Assassin Arc |=
Chapter 1: In Another World Time

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"-Who are you!? Where did you come from-!?"

"What are you-"

"Get away from my students-!"

"Korosensei- Look out!"

"Nagisa-!"

"NAGISA!"

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"- This will be the end -"

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Nagisa woke up in an unfamiliar place. His head was pounding, his chest felt tight and his throat was dry. He moved his hand over his head, massaging his temples. His eyes squinted open, burning to a bright light. Or was it just the color of the ceiling? It was a clean white.

He was inside...a room? Was he on a bed? Why was he here?

'What happened to me?'

Soon after the thought ran through his mind he rolled to his side, placing both hands underneath his head. He closed his eyes again, trying to clear the cloud in his brain. Once he opened his eyes again, they were able to make out two figures not too far from him.

They were having a conversation but...what were they saying? More importantly who were they?

"Do I really have to be here?"

"Yes, don't you wanna be here when she wakes up?"

"N-n-not, um, really..."

"Huh? Why not?"

"I...I...I just don't, okay! Please don't make me!"

"A hero has to be confident, Midoriya-kun."

"Can't you just tell her it was me, Recovery Girl?"

"No! It has to be you! Now stop whining!"

"Oh c'mon! I get...really shy when talking to girls!"

"Hmm...that explains why you don't have a girlfriend,"

"Don't be mean!"

What the hell? What were they talking about?

"Hush Midoriya-kun! You'll wake her up!"

'Hey...wait a second, is this 'her' that they're talking about me!?'

The blunet was finally able to open his eyes fully but struggled to sit up on the bed. He noticed the other two people in the room stopped their bickering and directed their attention to him. Nagisa met two pairs of surprised eyes with his own azure pair. He managed to sit up properly and return a confused look to the other two.

He opened his mouth but soon closed it afterwards, not really knowing what to say at a time like this.

The atmosphere was beginning to grow awkward...

He needed to say something. Fast.

"Um..." the blue haired teen began, his eyes darting around, finally able to see that the room was an infirmary, "...Hello?"

Well, that came out more as a question...

One of the two people, a short old lady with purple visors and a cane in her hand, smiled and walked over to Nagisa. "Hello there, I'm Recovery Girl. How are you feeling?"

'Recovery Girl? Is that...her name?' Nagisa thought doubtfully. He shook it off. He understood that she was a nurse of some kind. "Oh, um, a little light headed but I've been worse, thank you."

"No trouble at all," the lady said, "but you really ought to thank Midoriya-" she paused when she noticed the other person wasn't there anymore. Instead in his place was a flashing broken outline of his form.

They both turned their heads to the door when they heard it creak open. Trying to sneak out was a boy with messy green hair, big and round green eyes and freckles.

Nagisa sweat dropped.

Did he not want to be here or something?

"Where do you think you're going Midoriya?!" Recovery Girl yelled after him. He flinched and began shaking without moving away from the door.

The greenet spoke with a nervous tone, "Oh...well, I'm g-going to be late for, uh, morning training if I stay here so..."

Nagisa wasn't sure what he was talking about but he couldn't help but turn his head to the pitch black sky outside the window.

"It's nine pm," The old woman deadpanned. That seemed to have caused the boy to start sweating bullets.

Recovery Girl sighed, "You're a horrible liar. Stop you're excuses and come over here already!" After what felt like several minutes, the green haired boy sighed and moved away from the door. He kept his eyes glued to the floor as he slowly walked over to the bed where Nagisa was sitting with a slightly confused, slightly surprised expression.

The boy stopped just at the left side of the bed, his eyes directed to the sheets rather than the blunet. He fiddled with his plain white t-shirt, as his lips pressed against each other tightly.

Nagisa could tell from the other teen's wavelength that he was nervous, shy and a little flustered.

He wondered...

"Are you..." Nagisa began slowly, as to not startle the other. "Are you the one who brought me here?"

The greenet grew surprised at the question, his eyes meeting Nagisa's own for a split second before shifting to the side. "Um...yes," he mumbled a response.

"Really?" Nagisa lit up, "Thank you...uh..."

He didn't know his name.

Recovery Girl spoke, "C'mon chicken! Don't be rude! Introduce yourself!" The teen flinched again before moving his hands to his sides and curling them into fists. He took a deep breath before speaking.

"My name is...my name...is," He calmed down, "My name is...Midoriya Izuku."

Nagisa blinked twice before smiling.

"Nice to meet you," the blunet replied, "I'm Shiota Nagisa," he then quickly added, "But please just call me Nagisa."

"O-okay," Izuku said before returning the smile, "It...it doesn't hurt anywhere...I hope?"

"Just a small headache," Nagisa admitted with a weak smile, "My throat's a little dry too but... that's about it."

"Oh, well I can get you some water!" Midoriya rushed to the other side and grabbed a glass. As he did that Recovery Girl took Nagisa's temperature.

"Looks like your fever's gone down. That's good," The old woman said before walking over to get some aspirins. Nagisa turned to the two, "I had a fever?" Midoriya came back with a glass of cold water, "Yeah, you did. You were seriously burning up."

"Oh," Nagisa thought.

"But don't worry," Recovery Girl said coming back with a box of aspirins. "Midoriya-kun here helped me nurse you back to health."

"Really?"

"A-ah, it was nothing really...all in a d-day's work for a hero," Midoriya gave the blunet a nervous smile as he held out the glass of water with a shaky hand.

Nagisa sweat dropped again. And what did he mean by...hero?

"Careful, you'll spill it!"

"S-sorry!"

The blunet took the glass of water and the aspirins. He popped a couple in his mouth before drinking some of the water. It was enough to ease his nerves. He couldn't say the same for Midoriya. He was practically vibrating in one spot.

"Maybe you should drink some water too, Midoriya-san," Nagisa chuckled. Midoriya's face turned red with embarrassment.

"I'm...I'm...I'm good, thanks!"

"You sure?" Nagisa asked before taking another sip of his water. Midoriya nodded his head speedily.

Recovery Girl chuckled, "Don't mind him, Nagisa-chan. He's just really shy around girls."

What?

Nagisa had a spit take. As in, all the water sprayed out of his mouth.

"Don't t-tell her that!" Midoriya protested, flailing his arms, but both he and Recovery Girl turned to see Nagisa choking on the water.

Midoriya quickly rushed to his side and began to pat him on the back. "Are you alright?"

"You shouldn't drink the water so fast, Nagisa-chan!" Recovery Girl said.

Nagisa took a few deep breaths, a shadow casted over his eyes, "Let's get one thing straight..." When the blunet finally calmed down he turned to face Midoriya with an irritated look. "I am not a girl!"

"WHAT!?" Midoriya said with shock.

"You're not?" Recovery Girl raised an eyebrow.

"Yes!" Nagisa said as the other male moved away from him.

Midoriya blinked, "Oh...really?"

Recovery Girl mused for a bit, placing a hand on her chin, "So you're a trap?"

"DON'T CALL ME THAT!"

"Calm down," Midoriya waved his hands nervously, "If that's the case, then sorry for assuming!"

The blunet sighed, "It's alright. It's not the first time, really," he said wearily, "After all it took fourteen years before my own mother accepted that I was a boy."

"Wow really?" Midoriya asked in surprise.

"Yeah..."

There was a long silence.

Midoriya eventually smiled and walked closer to Nagisa. "Well then I hope we didn't overwhelm you too much, Nagisa-san."

Nagisa smiled back, "I should be asking you that, you were shaking pretty hard back there!"

Midoriya chuckled, "Oh well, that was only because I thought you were a girl! I get pretty nervous around girls!" he scratched the back of his head, "Uh, sorry about that."

"I said it's alright didn't I?" Nagisa also chuckled, "Thank you though, for taking care of me."

"It's nothing really, Nagisa-san! It's what a hero's supposed to do," Midoriya said more relaxed this time.

He said it again.

Hero?

"Just call me Nagisa," the blunet said calmly, an unreadable expression on his face.

"Oh okay, Nagisa," Midoriya smiled but it disappeared as quickly as it came when the greenet noticed the other boy's face. "Is something wrong?"

Nagisa looked up at him. "You keep saying 'hero'? Why is that?" he asked. Midoriya blinked. "You don't know...about heroes?"

"Am I supposed to?" Nagisa cocked an eyebrow, "Also...where did you find me? And where am I?"

Midoriya stared back at him for a few moments before sitting down on the bed, "I suppose I could explain what happened."

"Okay..." Nagisa waited patiently for the other to speak.

Something told him, that things weren't they way they usually were and that this Midoriya Izuku that he met only a few moments ago played an important role in solving the mystery of what it was that happened, was happening or was still to happen.

The greenet began to recall earlier events as he replied. "It was around two hours ago..."

=| Two Hours Earlier |=

Midoriya had just gone out for a late run. He wore a green hoodie with a plain white shirt, black shorts and red sneakers as he focused on the road ahead. Running always cleared his thoughts, especially with his new life as an aspiring hero.

He smiled.

The greenet was glad that he got the chance to even be one; being born quirkless was probably his worst nightmare, knowing that his dream would've been left to die. But after meeting All Might and inheriting the quirk One For All, he felt like a new person, like he could really make a difference.

Still he'd have to get better control of his quirk and make it his own. It would be impossible for him to become an amazing hero if he didn't overcome his weaknesses.

"I wonder..." he whispered to himself as he continued his run. The streets were mostly empty with a few people here and there.

Besides the occasionally cars passing by and loose conversations, the night was relatively quiet. Midoriya continued his way down the street and decided to stop by a convenient store. He soon came out with a bottle of water, taking in a few gulps before sighing.

He then found himself staring at the starry night sky. It was so vast and endless. The moon hanging in its half state. Midoriya found it to be a calming sight, putting him at ease. Just as he was about to continue on his way, an eerie blue light spread through the skies, along with a powerful energy he'd never felt before.

Not many people noticed this strange disruption in the atmosphere, in fact it was rather subtle to say the least. However, due to his intense training until now, Midoriya was able to pick it up. He fixed his gaze onto the sky, trying to spot the smallest change. Everything looked the same for the most part...

Was he imagining things?

"I could've sworn...I felt something just now," He continued to trace the sky for several more minutes. He furrowed his eyebrows, 'How strange.'

Suddenly, a bright spark traveled through the sky. His head snapped towards the curious blue light as it quickly made its way passed the buildings in the city. The greenet's eyes widened as he hurried in its direction.

He ran around a corner, trying not to lose sight of it. Was it a bird? A plane? A meteor? He didn't know but he had to find out. He continued to pursue it as it grew closer to the ground. He still couldn't make it out though.

CRASH!

As soon as he heard it land, Midoriya came in. Despite it being dark, Midoriya could still easily make out the park that he and Bakugo used to play in when they were younger. Had he really ran that far?

Once his eyes landed on whatever was flying in the sky, he slowed his steps. As he inched closer, he could make out a small crater that formed after the thing crashed. Trying his best to peer through the smoke, the young hero was able to bend over a bit to see what it was.

But then he fell.

"AH!" he cried, tumbling into the crater. He sat up and rubbed his head before dusting himself off.

The smoke had finally cleared and he took the opportunity to see what this 'thing' was. Lying lifelessly at the center of the crater was a person - a young teen to be exact.

They had a petite body, milky pale skin and blue hair that was just below their shoulders. They were wearing a beige sweater over a white dress shirt and a black tie. They had grey baggy pants that were rolled up at the bottom and black shoes.

Their eyes were clasps shut and their cheeks were heating up.

"-A girl!" Midoriya gasped, his face beginning to go bright red. She looked around thirteen or fourteen but the greenet couldn't tell for sure. "Wait...why was she flying through the sky?" he wondered aloud as he looked up above.

He turned back though when a pained groan came from the young teen. Midoriya's expression become serious as he bent down beside her. Trying to be cautious, he took her hand, and checked her pulse.

It didn't seem like she was in any fatal danger. Still as his hand slowly traveled to her forehead, he could tell she had a terrible fever.

"I should get her to Recovery Girl!" he said. "I hope she's still there!" Without wasting time, he took off his jacket and wrapped it around her before standing up and moving out of the crater. As quickly yet steadily as he could, he went back to U.A High School and straight to the infirmary to see Recovery Girl.

=| Back To The Present |=

"And that's how I found you,"

When Midoriya was done explaining, Nagisa tried to understand everything he was told. Disregarding the fact that the greenet had mistaken him for a girl (he already apologized so it's fine), he was glad that he was taken somewhere he could recover and be looked after. Still, that didn't explain how he got here.

"Are you okay Nagisa?" He snapped away from his thoughts at Midoriya's question. Nagisa nodded his head.

"Yeah I'm fine," he said, "I'm just trying to wrap my head around this," he held his chin in a pondering manner before looking at the greenet. "You said I fell from the sky?"

Midoriya sweat dropped, "I know it sounds weird but that's exactly what happened..." he chuckled nervously.

"I see," Nagisa turned away thoughtfully.

"Although..." Nagisa quickly turned back to the greenet as he began to speak again, "Before I saw you, there was a strange disruption in the atmosphere, in the sky to be more precise and well, it felt like a powerful force or energy was being emitted at the time." It was Midoriya's turn to place a hand on his chin, "I don't know exactly what it was but...it felt strange...like it didn't belong here."

Like it didn't belong here. The words echoed in Nagisa's mind and everything around him turned black for a moment. Suddenly a pain struck in the blunet's head. He placed his hands at on its sides to try and steady it.

It was then that his memories slowly began to return to him. The moment he was pushed through a portal of somekind...just after he...he...

"N...gisa?"

"Na...gisa?"

"Nagisa are you alright?" Midoriya's voice finally reached the blue haired teen and his eyes grew wide, "You seem dizzy. Maybe you should rest some more-"

"Midoriya-san! Earlier you said something about being a hero!" Nagisa yelled suddenly, gripping the ends of his blanket tightly. Midoriya blinked in surprise, "Yes...I did. You said you didn't know about them though..."

"That's because where I come from there isn't anything like them!"

Midoriya raised an eyebrow, "What do you mean 'where you come from'?"

Nagisa shifted his eyes to the blanket, a voice echoing in his head.

- 'This is will be the end of all heroes.'

He closed his eyes and slowly turned back to Midoriya, "Try and follow me on this. I..." Nagisa tried to say, "I...think I may have traveled here from another world."

"What...?" The greenet's eyes widened.

"I know it sounds crazy but that's what happened," Nagisa kept his eyes on his hands, "Something - No! Someone...brought me here and that's probably why you felt a strange disruption in the atmosphere..."

Midoriya pieced it all together, "...Because there was a distortion in time and space. Of course!" he hit his palm with a fist, "Which means that whoever brought you here is able to manipulate time and space to create interdimensional portals that can reach as far as another universe which is kind of cool if you think about it-"

Nagisa gave him a deadpanned look.

"-I mean you were forcefully removed from your home so it's not cool at all..." Midoriya avoided his gaze, and scratched the back of his head. The blunet just shook his.

The young hero cleared his throat, "Anyway, if that's the case, then you not knowing about heroes makes sense."

"Well it's not like I don't know what a hero is, after all where I come from there are still comic books and multimedia, what I meant was, you were speaking about heroes like they were the norm kind of. I hope I'm making sense," Nagisa said.

Midoriya chuckled, "Don't worry I understand," he said, "Well, in this world about eighty percent of the population are born with a unique ability called a quirk. From there people choose to be either heroes or villains."

"Wait! Seriously!?" Nagisa eyes dilated, "Eighty percent!?"

"That's right. And because of that, schools are created for the purpose of molding young people and assisting them in bettering themselves and their abilities." Midoriya explained, "Right now, you just so happen to be in one of those very institutions. This is U.A High School, the best hero academy in the world.

"It takes a lot of hard work and recommendation to get into a place like this. On top of that, it gives you great recognition too..." Nagisa listened attentively to everything the greenet told him, noting how all of this sounded like something straight out of a comic book. A Shounen superhero manga even! Did he really end up in a world like this?

Was this all even real?

"So," Nagisa began, "You're a student here?"

Midoriya nodded, "Yup! It still surprises me every day but...I really am I student at U.A."

"Does that mean you have a...quirk, too?"

"Yes I do."

Nagisa nodded in understanding before turning away. He spoke without looking at the other, "So...you're aiming to become a hero?"

"Yeah," Midoriya sighed, "It's always been my dream to be one. And well, at some point I thought it was impossible but after an almost miracle, it became possible. Someday, I'll become an amazing hero and protect those in need."

Nagisa nodded but remained quiet, swimming in his thoughts. If this was a world where heroes are the everyday thing, and for some reason he ended up here, and then that person...

"It can't be a coincidence..." Nagisa whispered to himself.

"Did you say something?"

"Midoriya-san, I think the person who brought me here...is planning something," Nagisa told him. The greenet eyes widened.

"What do you mean by that? Planning something? What could they be planning?"

Nagisa held his chin, "I'm not quite sure...but I know that it has something to do with reason I'm here and..." his eyes shifted to Midoriya's, "...heroes."

"H-heroes?" The greenet choked out. "What would they want with heroes?"

"I don't know. Everything that happened before I came here is a bit of a blur right now," Nagisa said, "But I remember just before I got pushed into the portal that that person said, 'This is the end of all heroes'."

"W-what...?" The greenet stuttered, "The end of all heroes? W-what could that mean?"

"Not sure,"

"Is this person from your world?"

"I don't think so. For the most part the people of my world are like the twenty percent of the population in this world," Nagisa explained. "They don't really have any special powers that would be on the level of a super powered hero or villain in this world," He sighed, "Still even if they were from my world, why would they be seeking the end of all heroes if heroes are in this world or if they were from this world, what would they be doing in my world?"

Midoriya pondered for a moment, "Maybe they're from a whole other world altogether."

"I don't know," Nagisa yawned, "But it's making me really tired just thinking about it..."

Midoriya yawned too, "Yeah, I guess we can worry about it later. I've got school tomorrow anyway," he stood up from the bed, grabbed his jacket and turned to Nagisa, "After my morning classes I'll come back and try to inform some people about you being here, if you don't mind of course."

Nagisa shook his head, "Not at all." He chuckled nervously, "I just don't want to cause a commotion."

"Don't worry I'm sure you won't!" Midoriya waved him off and began walking to the door, "Well, I'm going now. I'll see you in the morning Nagisa!"

"You too Midoriya-san," Nagisa smiled, "Thanks for everything."

Midoriya stopped on his steps, "You know, I feel a little bad calling you by your first name." He turned around, "Why don't you call me Izuku instead?"

Nagisa stared at him for a moment until his eyelids grew heavy from sleepiness, "Alright then. Goodnight Izuku-san..." And just like that the fourteen year old drifted to sleep.

Midoriya smiled. Nagisa seemed like an intelligent kid. He kind of reminded the greenet of himself. He was snapped out of his thoughts when Recovery Girl pushed him out of the infirmary.

"Go home, already!" She ordered. "I'll look after the kid until the morning!"

"Are you sure? I mean I could take him back to my house..." Midoriya thought.

"Why didn't you go back to your house in the first place?"

"Uh..."

"That's what I thought," the old woman said, "Don't worry about it. Now go home and get some rest. You'll see him in the morning."

"Alright..." he said in defeat, "Thanks a lot Recovery Girl! I'll see you tomorrow! Goodnight!" he bowed before running out the building.

On his way back home, Midoriya couldn't help but think about his discussion with Nagisa. From the blunet's being from another world to finding out there was someone who can manipulate time and space and was out to get heroes. That was definitely a lot to process.

He sighed.

"It can't be helped," Midoriya breathed out, "I have to tell All Might and Aizawa-sensei about this tomorrow."

Hopefully they'd be able to figure things out. He just wanted to crawl into bed and go to sleep.

When the greenet arrived home, he was immediately bombarded by his mother's worrying questions, "Izuku!? Where have you been!? I was worried sick! You said you were going for a run but that was at least three hours ago! What were you doing!? Don't you know you have school tomorrow, young man!? What were you thinking!?"

Midoriya sweat dropped.

Looks like getting sleep wouldn't be happening tonight...

-»

My very first crossover story! My Hero Academia and Assassination Classroom! There are so many possibilities for a fanfic like this and I want to see if I can explore some of them. The main characters of the story have been introduced but there's still more to come.

Btw, this takes place early season 3 of MHA and in season 2 of AC just after 3-E "raided" ISS.

What will happen next?

Don't forget to vote and comment!

~ DestinyStyleAnime