Disclaimer! This fic will contain some violence and inappropriate language! I do not own any character used in this book besides a single original character.

A/N- Hope you enjoy this fic! I've been having a lot of Sonic brain rot as of late. Anyways, enjoy!


When the blue blur awoke he nearly doubled over. A skull splitting headache sent him reeling backwards, slamming into a firm mattress harshly. The hedgehog let out a groan, massaging his head.

Upon opening his eyes, bright white lights flooded his vision, rendering him blind momentarily. To add insult to injury he felt so very drained. Like he had been wide awake for months.

Rubbing his eyes, Sonic slowly pushed himself up into a sitting position. Once he had his bearings he looked around the room he was in, trying to think of where he was. It was definitely a hospital room of some kind. He had been lying on a hospital bed with the curtains slightly drawn.

He was about to get out of bed before he picked up the soft sound of footsteps. His ears perked up, listening attentively. Turning his head towards the general direction of the sound, he waited attentively.

The hedgehog doubted it was someone dangerous, he had clearly been rescued and treated here. Though that didn't mean he wasn't on edge. He was, after all, in some random hospital room with no idea where he was. He had definitely been wounded, but trying to remember what caused the injury had come up blank. Is this how Shadow feels 60% of the time?

Sonic had become lost in thought, his quills standing on end when he heard the turning of a doorknob. His emerald eyes darted to the side where the door opened. In entered a little old lady, she couldn't be any taller than himself. She had grey hair tied in a neat bun with what looked like a syringe sticking out of it, her cane was syringe shaped too. This was definitely the lady who treated him, he let his guard down, quills flattening. She took notice of him immediately.

"Ah. Dearie, you're awake," she smiled gently, "that's lovely to see". She approached his bed, a glass of water in hand. "Drink up dear". Holding it up to the hedgehog's face, he smiled, shaking his head, he could do this himself. Taking the glass he downed it in one go.

"Thank you, ma'am" she nearly jumped out her skin, eyes widening in surprise.

"You're able to speak?" The shock in her voice matched her expression. Of course? Why wouldn't he be able to speak? Where the heck was he!? A puzzled look crossed the hedgehog's face.

"Yeah? Of course I can! All of my friends and I can. Haven't you heard of me?" he gave a sheepish grin.

He really wasn't back home on Mobius was he? Shit. the old woman took a second to take this info in before shaking her head in a no. Double shit. Sonic facepalmed mentally, before flashing another one of his signature grins. He guessed an introduction was due then. He was in a pretty bizarre situation, any info would be a great help.

"Well then, the name's Sonic," he paused for effect, "Sonic the Hedgehog. Fastest thing alive!" he exclaimed proudly, puffing up his chest. She smiled at his rather animated introduction.

"I better introduce myself as well then," he gave her a thumbs-up, "my name is Shūzenji Chiyo, also known as Youthful Heroine: Recovery Girl. though I suppose you haven't heard of me either. He nodded, so far everything he learned had been further proof he wasn't on Mobius.

"I used my quirk to heal your injuries, and my, were you injured. Definitely not the worst I've seen, but dangerous to leave untreated," her voice sounded somber. She's seen worse eh? That wasn't the only thing that caught his attention.

"Quirk?"

"Yes, my quirk is essentially the ability to heal others," he cocked his head to the side more confused now, she said that as if it was a regular occurrence. He hasn't met any humans who could do something like that, usually relying on technological prowess. Did all humans in this place have abilities like this?

"Pardon my interruption but, quirk? What on Mobius is that?" she was obviously taken aback by his question. So it was definitely a common occurrence here, interesting.

"Ah- well. is a superhuman ability that a person can possess. Along with being unique to each user, Quirks are sorted into multiple categories; Emitter, Transformation, and Mutant." well that just left the blue blur with double the amount of questions than before. Catching on to his confusion she continued.

"When we first found you I had assumed you were an animal, but from the looks of it you may have a mutant type of quirk. Or a high intelligence quirk like another person I know, somewhat similar to you," she paused allowing him to process the new info, "Mutant Quirks modify the body and change the appearance, making their users targets of discrimination." Sonic's eyes narrowed, discrimination eh?

"Emitter Quirks are abilities that allow the user to generate and possibly control certain things, or alter existing things around them in certain ways. For example, controlling elements," the hedgehog's eyes widened. That sounded similar to Silvers' telekinesis or Shadows' powers!

"Lastly we have Transformation Quirks. Transformation-type Quirks allow the user to temporarily 'transform' their body in a variety of manners, sometimes enhancing existing features, removing features, or adding new features to the body altogether."

Sonic nodded, the info he was getting was mind boggling but above all else, very interesting. He got giddy just imagining how strong some of these humans had to be. Maybe he'd find a human fast enough to race him.

He was about to ask another question when the ramming of the door startled both him and the recovery girl. What looked like a mummy and an absolutely shredded, and he meant shredded, blonde man. What did his parents feed him!? Holy shit.

"AH! So he's finally awoken!" the large blonde man spoke up first, his aura was off the charts. Sonic perked up, he was referring to him, eh? Remembering the reaction recovery girl gave him, Sonic grinned.

Taking in a deep breath Sonic decided to let out the most guttural, demonic screech he could manage. Causing everyone in the room to jump. Satisfied with the reaction Sonic attempted to hop out of bed, he wanted a closer look at these dudes. Upon setting foot on the ground, Sonic met it face first.

A splat heard as he groaned in pain.

"Didn't I tell you my quirk uses up the person's energy? You'll be able to walk again by tomorrow."

"I don't remember that," he grumbled.

"Oh? He's also capable of speech! How delightful!" a tiny voice sounded out, when Sonic looked up a white mouse-dog-bear thingy had popped out of that mummy mans scarf. Sonic remembered Recovery Girl mentioning someone similar to himself, this must be him.

"Hello! My name is Nezu, and I'm the principal of this fine establishment you're in." principal– was he in a school? Oh hell no.

"Do you have any idea as to how you ended up here, injured and within our school grounds?" Sonic shrugged, sitting back down on the bed again.

"I uh, have a pal who is able to teleport people and himself," Sonic made sure to keep the explanation vague, Shadow would be pissed if he gave away info about him to strangers. "He may have teleported me here on accident, or on purpose," he mumbled that last part.

"I can tell you one thing, I'm definitely not from this dimension," the three newcomers had varying degrees of shock at this, the buff blonde seemed the most flabbergasted. "He must have sent me to another dimension or something. Not the first time something similar to this has happened." He mumbled that last part. Sonic was pretty familiar with interdimensional travel and time travel even, he was very good friends with a certain flame princess from another universe after all.

"Do you think there's any possibility the warp gate user brought him here?" This time the mummy man spoke up, though it wasn't directed to Sonic. "It's perfect timing as well, right after the villain attack at the USJ," his eyes narrowed at Sonic with that last comment. The hedgehog gave another sheepish grin, he definitely didn't make a good impression on this guy. The 'Attack on USJ' sounded rather interesting. He'd been tempted to ask about it, but now certainly was not the time.

"Young Hedgehog-"

"Sonic," both him and Recovery girl interjected.

"Ahem. Young Sonic, if what you're saying is true and you are indeed from another dimension unless we find this friend of yours the warp gate villain may be your best chance at a way home," the mood of the room shifted at this remark. The warp gate user was a villain eh? Sonic could handle that no problem, find him, beat him up, head home, end of story.

"Your friend, does he look similar to you?" principal Nezu questioned, changing the topic for the meantime.

"Yessir! He's a red and black hedgehog, and if he's here there's a chance a few of my other buds are here too." the principal nodded, taking that into consideration.

"Back to the first suggestion. Just take me to this warp villain! I'll get him to send me home, real quick!" the speedster beamed. His enthusiasm was not shared by the rest of the group unfortunately. Nezu sighed deeply.

"It's not as simple as that, there's a few things to keep in mind with our current predicament. The villain is nowhere to be found, has other dangerous villains working alongside him and you'd require a heroing license to even attempt to find him." Sonic remained unfazed.

"With my help, it'll be easy as pie! And as for the last thing, I'm already a hero in my homeworld! So I'd-"

"Not that you're lying, we have no proof of this." Nezu interrupted him, causing the hedgehog to frown. "And even if you had proof, a license from another world would certainly not be accepted here."

"You're joking, right?" it was Sonic's turn to be flabbergasted, he couldn't do what he was made for because of some silly rule? "Then I'll get a license! Easy as that, right? Just some heroin' test or whatever, yeah?" He didn't like the looks on their faces.

"It's not that simple Sonic," seemed like nothing here was. "For a child to become a hero, they'd have to enroll in a hero school, much like this one, and be placed into the hero course."

"What!? Tell me it isn't so," Sonic and education went together like oil and water. "That can't be the only way right!?" all he got were sympathetic looks.

"No worries, Young Sonic! I assure you the hero course is a thrilling one! I for one am one of the teachers for the hero course!"

"I didn't even get your name?" Sonic grumbled, crossing his arms and melting into the bed. The blonde made a shocked face, before rubbing the back of his head sheepishly.

"Apologies! I got a bit too into the drama," he let out a hearty laugh, "My name is Yagi Toshinori, though you may refer to me by hero name! ALL MIGHT!" Sonic felt a bit better, this guy's aura just oozed excitement. Sonic returned the mans never faltering smile, giving him a thumbs up.

"So," Sonic began, a newfound hope in his voice, "am I gonna be enrolled here?" Nezu's ear twitched.

"I'm afraid we don't have the room-"

"It won't be permanent, room can be made somewhere!" All-Might proclaimed. "I'm sure you wouldn't mind an extra student, right Aizawa?" he gestured towards the mummified man. Who gave him a nasty look. All-Might flinched, averting his gaze.

"Do I get a say in this?"

"Nope!" Nezu said with glee, "This'll be interesting, won't it?" Sonic snickered, earning him a glare too. Turning to Sonic the principal smiled.

"You will be a temporary exchange student in Class 1-A. However, before officializing this, what is your quirk?" Sonic grinned.

"Superspeed."

"Ah, a perfect quirk to fit your name. It also explains your shoes," he gestured towards the shoes, which had been placed in front of his hospital bed.

"Yessir! The extra traction makes sure I don't set my feet ablaze."

"Oh? Reminds me of Young Iida, you must go quite fast then!" Sonic raised his brow, seems he had some competition already eh? Good.

"In two weeks' time, the U.A sports festival will be held. That's where you'll do the physical requirements for the course," Sonic took it back, school didn't sound so bad after all.

"- Though before that, during these two weeks we'll have to get you up to date with the current culture and laws of this world! So you'll have a lot of learning to do beforehand!" Sonic nearly cried.

Recovery Girl smiled. "All Might help Sonic stand, we'll also need to take his measurements for clothing."

"NOOOOOOOOOOOOOOOOOO-"

The sound of the hedgehogs cries echoed out into the halls of U.A...


"Do you think he was telling the truth?"

"I'm not certain, but he clearly believes he is."

"He could be a villain masquerading as an amnesiac"

"True, but with him in your class it'd be easy to keep on eye on him"

"I suppose you're right"

"He mentioned warping, could he have a connection to the L.O.V?"

"He has two quirks as well, we all know who has the ability to-"

"Was the Nomu. I understand, but he shows no similarities to the Nomu at all. For all we know he could be another experiment, like me..."

"Nezu..."

"Principal, we've only seen one, we have no idea of their true characteristics."

"It's possible he was tested on but I worry for our students' safety"

"Agreed, though keeping him close is the best option. Study him in a controlled environment"

"I don't like this either, but sometimes we must do things we dislike."

"Yes, we must tread carefully and vigilantly. More chaos is the last thing we need."

The other parties nodded in agreement.

"Let's call it a night, yes?"

"Agreed. We've got a lot in store these next two weeks."

"Goodnight"