Author's Note & Disclaimer: First want to wish everyone a Happy New Year 2019. Hope everyone enjoyed the party and being hungover. Anyway, this is a Crossover story featuring Sonic the Hedgehog and My Hero Academia. I don't own both franchises. Sonic the Hedgehog is own by SEGA and the Sonic Team. My Hero Academia is own by Kohei Horikoshi, Shueisha, and Funimation.

This Story is Rated T for: Intense Sequence of Sci-Fi and Action Violence, Strong Sensuality, and Language

Paring: Izuku Midoriya & Harem (Momo Yaoyorozu, Ochako Uraraka, Itsuka Kendo, Mina Ashido, Tsuyu Asui, Jirou Kyoka, Toru Hagakure, and Camie Utsushimi)

Prologue: The Day They Met

A fifteen year old boy with round green eyes, messy green hair with black shadows, and four symmetrical freckles on both cheeks bellow his eyes. He wore his UA Academy uniform minus the gray suit jacket because of the summer heat. Only his white dress shirt, dark green dress pants, along with a red necktie, and red boots he wore throughout as he walk along a dirt trail in the forest. He could hear the sound of seagulls flying above him and the sound of the ocean hitting the shoreline, signaling he was getting closer to his location.

He stopped when came across a gate that was locked in chains in the middle. Two signs were on the gate. On the right with words colored in red saying "No Trespassing! Base Closed! Keep Out!". On the left with words colored in yellow saying "Authorized Personal Only!". The boy didn't mind it as he begin to unwrap the chains in between the gate. Once that's done, he open both gates.

After that, he immediately felt the wind breeze blowing on his face. The sun also blinded his eyes as he use his arm to get shades to block the brightness hitting his eyes. Took a couple of seconds to regain focus until finally he could see. The light was gone and came across an old abandoned airfield.

The airfield has been abandoned since World War II which was controlled by the Empire of Japan. Hangers on each side were empty and rusted. Grass growing by mother nature on the hanger walls and broken windows were seen as well. There were weeds growing on the runway that stretch towards the cost. Near the airfield was a beach. Seagulls flew all around the area.

The boy walk forward on the runway. Looking around at the hangers that were empty with no signs of life inside. But he could see the memories of this place, thinking "they" and "him" were still here. He stopped in the middle of the runway, looking around for any life. "The memories that "they" left behind on this planet. The fun, the laughter, the emotions, and the battles we've went through. They're never be forgotten." he thought.

Suddenly, his thoughts were interrupt when heard a plane engine. He look up at the blue clear sky. His green eyes were wide when he saw a red biplane flying. "No way… can it be…" He thought at first he saw a blue hedgehog riding on top of the wind and an anthropomorphic fox flying the plane. Both of them waving at the boy bellow. He rub his eyes to get a good look, only for his hope to be gone. Instead, it was just a regular plane flying by with no hedgehog on the wing.

He felt down thinking "he" came back to see him. He look down on the ground for a moment. "Even though it wasn't "him", I still had hope he would return to Earth." Izuku Midoriya thought as he look up at the sky with a smile on his face, letting wind breeze blew his hair a little. "That day changed my life… when he save me and a boy from a former friend who became a bully towards me.."

Flashback

Couple of years ago, a Four Year Old Izuku was scarred and nervous. He had tears coming out from his eyes. Behind him was a boy, who was holding his right arm, crying on his knees. He could tells that his right arm was hurt. "Why are you being so mean? You're making him cry, Kacchan." the boy change into his fighting stance, despite being scarred. "If you keep on hurting him,.. um… I'll uh… I'll stop you myself!" he yelled.

In front of him were three boys facing him. The leader of the three has ash blond, spiky hair and sharp red eyes. The three stood there until when they smile, evilly. The leader closed his eyes while smiling. The first boy behind him has Red Wings appearing from his back. The second boy's fingers were growing and almost wobbling at the same. "You want to pretend to be a hero?" Katsuki Bakugo asked, pounding his right fist on his left hand, creating an explosion. "You don't stand a chance… Deku..." He form an evil smile.

Izuku flinch, noticing that he was about to be attack. With no powers like them, he was defenseless. The boys charge towards, ready to attack him and the boy behind him. Bakugo was leading the attack, ready to use his Explosive Quirk to attack his former friend. Inching closer with his fist towards Izuku's face, the attack suddenly stopped. Izuku had his eyes closed, ready for him being use as a punching bag. But he didn't felt nothing. He open his eyes slowly and in shock, Bakugo and his friends were knocked out to the ground.

"W-What just… happen…?" the boy were stunned, looking around on what saved him.

"N-No way!" the boy behind Izuku point his finger with a shocked face. "Midoriya, look in front of you!"

Izuku look in front of him and was shocked at he was seeing. A small blue anthropomorphic hedgehog with a round head and an equally round torso. He has blue fur that covers most of his body, peach skin that covers his arms, muzzle and torso, and black eyes. He has six quills on his head, two spines protruding from his back and a short tail. He wore hyper friction resistant red sneakers with a white strap, cuffs, dark red soles and a gold buckle, and a pair of white gloves with sock-like cuffs on his hands. "W-What… is that?" he asked.

The hedgehog turn to the boy with a smile on his face. The animal's response was a thumb's up and a wink at him. "D-Did you just… save me?" Izuku asked as the hedgehog only nod his head, pointing his thumb at himself. "Uh… you don't talk right?" Izuku asked again, only for the hedgehog to shake his head in no.

"You little good for nothing, rodent." They turn back to the front to see Bakugo, getting up from the ground. His face turn anger when he saw the hedgehog, standing in front of Izuku. "Deku, who this little sewer rat? Trying to defend you all of a sudden? No matter, I'll just take both of you out! Eat this!" Bakugo charged towards the two for another attack.

Izuku was scarred again. But the hedgehog wasn't gonna let him attack. He curl himself into a concussive ball, getting enough boost. He launch himself towards Bakugo, deliver a big hit on his stomach, sending the bully backwards, flying, hitting to a nearby trash can. His bully friends saw this as they quickly ran out of the park, scarred as hell. Bakugo got up from the ground again, seeing his friends ran off, he look back at both Izuku and the Hedgehog, giving them seething glare.

"You think you won, Deku? This isn't over yet! Tell that sewer rat of yours he's next. When I become the Number One Hero, your gonna regret attacking me!" Bakugo said, before exiting the park, angry as ever.

The hedgehog rolls his eyes and shrugged his shoulders at the bully's reaction. He turn back to both boys who were shocked at what just happened. The hedgehog looked at them in question. He use his hands to wave in front of Izuku's face. "Y-You just beat Kacchan like it was nothing." the boy said as the Hedgehog gave him a thumbs up.

"That's awesome!" both of them turn to the boy that Izuku tried to defend earlier jumped up in excitement. "Midoriya, why you didn't tell us you had a pet that has an awesome Quirk?"

"Huh? W-Wait! T-This is not my pet! H-He just came out of nowhere and save us from Kacchan." Izuku responded.

"It has to be your pet? He just embarrassed Bakugo just now and his friends ran off like a bunch of crybabies." the boy responded. "Wait till I tell everyone about what happened. It seems with your pet, everyone can come to the park and play around. It makes everyone safe that Bakugo and his friend can't bully us anytime soon."

From Izuku's mind, the boy was right about one thing. It feels that Bakugo can't bully him anytime soon. But he did warn him that he'll pay them back for embarrassing him. Izuku turn to see the boy chatting with the hedgehog. Though it doesn't talk, he was giving thumbs up and all like sign languages. That form a smile on Izuku's face, feeling he was safe from being bullied by others. "Sonic! There you are!" a voice was heard.

They look up to the sky to see an anthropomorphic fox cub, with two tails flying down at the sky, waving at them. The hedgehog waved back at him. Both boys were shocked at they were seeing. "Does this day get any weirder?" the boy asked as the fox cub landed on the ground, walking next to them.

"There you are, Sonic. I was looking for you." the fox cub said before turning to the two boys. "Who are you, guys?"

"Y-You can talk?" Izuku asked, with a shocked face.

"Yes I do. My name is Miles "Tails" Prower. But you can call me Tails." he introduce himself. "I see you met my friend, Sonic the Hedgehog."

"Oh, man this is so awesome. You've should've seen what it could do." the boy explaining the whole situation between Bakugo and Sonic.

"No way! This bully tried to attack the two of you and Sonic came in for the save!" Tails said with a shocked face. He turn to see Sonic giving his partner a thumbs up. "That's Sonic for you."

"Its so awesome. I wish I had a video camera to record the whole thing and my friends would be shocked to see it." the boy said.

"That's super cool." Tails said. "Anyway, I'm sorry we have to cut our conversation short. But Sonic and I have other things we need to be doing. It good to see you guys again. Let''s go Sonic." The two were about to leave the park when Sonic stopped and look to Tails. "What is it, Sonic?" the hedgehog point his finger to Izuku, who was looking at them. "Sorry, but you with the green hair! Sonic and I want to know what's your name?"Tails asked.

Izuku saw the reaction from the hedgehog as he forms a big smile on his face. "My name's Izuku Midoriya." he said.

"That's an awesome name. Sonic said you can hang out with anytime. That's what real friends do. Will catch you later." Tails said as he and the hedgehog waved goodbye and left the park.

"Man that's so awesome." the boy said, continuing to be amazed by the hedgehog.

Izuku just stood there seeing where the anthropomorphic animals were just now. He had the biggest smile on his face that he would never thought until now.

Izuku's POV

"That day change my life when I was four years old. I was Quirkless at the time. I always like Kacchan as a friend. But that day, he never like me. He always called me Deku. In term it meant "The One who can't achieve or do anything." That was who I am. People picking on me and bullying me in something I won't accomplished to achieve my dreams. But then, a hedgehog out of nowhere saved my life. He even beaten Kacchan like it was nothing. I started to feel something in my stomach that when that hedgehog smiled at me, he knows for a fact that he became my true friend.

That hedgehog… is named… Sonic the Hedgehog.

End POV

Weeks after being saved from Bakugo, Izuku begin hanging out with both Sonic and Tails. One day, the hedgehog had Izuku on his back, speeding through the streets of cars like its race. Not one civilian didn't knew about the hedgehog or the fox cub being in the city. Izuku was enjoying every moment. Almost feeling like he was on a roller coaster ride.

Once they were out of the city, there were in a wooded area. Running through a dirt trail, they see closed gate. But the hedgehog with his speed, crash through the gate and they stumble upon an abandoned airfield. Izuku was worried they were trespassing but nobody was around. The hedgehog calm him down. The boy got off from the hedgehog's back as they walk towards Tails, who was cleaning his red biplane. "Hey, Tails! Wow that's an awesome plane." Izuku said, seeing the object.

"Hey, Izuku. Thanks for the mentioning about the plane." the fox cub said. "How was the ride coming towards here?"

"It was scary but it was fun. Sonic is really that fast." the boy said with excitement.

"He is known as the Speed Demon back on Mobius." Tails said.

"Mobius?" Izuku asked.

"Yeah. Sonic and I are from the Planet Mobius. Our home planet is similar to your planet. But like us, there are many Anthropomorphic that roam the planet." Tails said.

"Wow, that's so awesome. I wish I would come to your planet someday." Izuku said, before changing to another subject. "By the way, if you're from that planet, then why did you come to the Planet Earth?"

Tails look at Sonic, which gave the hedgehog a serious look to his partner. "Izuku, Sonic and I want to explained the whole situation on why we're here. But your still a child and we don't want you to understand why we're here. We're on a very serious mission and we feel like you don't need to know. Is that's okay with you?" Tails asked with a serious face.

"U-Uh sure. Its okay." Izuku answered but didn't want to give more questions.

"Now then. Since you're talking about my plane, the Tornado? How about a little ride with us in the sky." Tails said.

"Really? You can ride a plane?" Izuku asked.

"Sure. This thing is my plane I built from a while back. Its pretty awesome and its fun to ride." Tails said.

With that, Izuku ran up to the plane. However, there was only one seat on the plane and its Tails that was the driver riding on it. He heard a pat sound. Looking up, he saw Sonic, standing on top of the wing, signaling him to come up with him. "Uh, you can't be serious? What if I fall and kill myself?" he asked, worrying.

"Don't worry, it'll be safe. Sonic right next to you." Tails said.

The boy didn't debate as he climbed on the wing with the hedgehog's help. Standing on it with nothing else, Izuku was worrying about what was gonna happen. He was afraid something bad will happen. "All right, here we go!" Tails push the start button, the engines turn on and the propeller begin spinning in front. The Tornado begin moving on the runway.

"Oh no! This is scarry!" Izuku yelled as the hedgehog hold his arm to keep him still.

"Hang on tight! We're about to lift off!" Tails yelled, pulling the stick towards him.

The Tornado lift up off the runway and into the sky. Izuku was freaking out, letting the wind gusts hit his body and face. His mouth was showing his teeth, wobbling like rubber and saliva coming out as well. His feet was about to slip off the wing, but Sonic hold on his arm to make sure he doesn't slip off. Once Tails control the plane, they were flying in the sky. Izuku look up at the view of the ocean and Tokyo all together. "Wow, this is so cool!" he yelled.

The hedgehog gave him a smile as they look the entire view. The Tornado flew through a couple of clouds. Seeing birds flying with them. Izuku was enjoying every moment of it. He never thought enjoying this moment with new friends he would make. They were above Tokyo at high attitude, seeing the view of the city and buildings from above. They even see Mt. Fuji in the distance. The plane ride was awesome for him. He would love to keep it going all day.

Later on, the Tornado landed back at the airfield's runway. The sun was setting down for the evening. Once they landed, Tails turn the engine's off. He jumped out of the cockpit. Sonic helped Izuku on the ground, landed next to the fox cub. "Wow, that was so awesome! Never thought I would have fun like that!" Izuku said, jumping up and down with excitement.

"It sure was. I'm glad you like it. Even though you had to stand on the wing must of the flight." Tails said.

"At first I thought I was scared, but it was so awesome." Izuku said, turning to the hedgehog. "Thanks, Sonic. That was so cool to stand on the wing. I would love to do it again."

The hedgehog responded with a smile and a thumbs up. "Anyway I better get home. My mom would worry me if I don't." Izuku said. "Hey, Sonic? Can you take me home?"

Sonic nod his head in agreement, letting the boy ride on his back. "Hey, wait! I got an idea. How about you guys come with me to my apartment?" Izuku asked.

"Huh? You're serious? What if your mom found out about us and she'll be freak out by our appearance?" Tails asked.

"Don't worry I find the way to sneak you two in my room." the boy said.

"Oh I see. But why are you want to take us to your home?" Tails asked.

"Because I want to show you guys a person I'm a big fan of." Izuku said. "He's perhaps the best hero you'll ever see."

Sonic and Tails were confused by it. "Best hero? Who could it be?" the fox cub thought.

Midoriya's Apartment- Mustaufu, Japan

As night time came, Izuku returned home thanks to Sonic. He was very excited because not only he enjoyed some fun time with both Sonic and Tails, he was about to do his usually stuff that he does every night on his desktop computer. "Mom, hurry!" Izuku ran out from his room, excited and a toy in his hand. He ran towards her mom, who was doing the dishes. "Come on, mom! Its computer time!" he said, jumping up and down as she turn the water off before turning to her son.

"Already?" Inko Midoriya asked as they head to Izuku's room.

Once they enter, Izuku jumped to his chair in front of his computer, using his head up and down like his headbanging to a metal song. "Come on! Faster, let's go!" he yelled again in excitement.

"Jeez, I think you added 10,000 views to this one yourself, Izuku." Inko said, clicking on the video with the mouse. "I don't why you like but I think its scary." Once that was done, she exits from the room, closing the door behind her.

Izuku look back at the door closed. He press pause to stop the video, though it hasn't started it yet. He jumped from his chair and ran to the closet. Opening the door, both Sonic and Tails popped out from the small room. "Sorry its cramped inside. I didn't want my mom to find out I have live animals living in here. You know the landowner has rules not allowing pets in the apartment." he said where the hedgehog place his fist on his hips, tapping his right foot, looking at the boy. "Don't give me that look. What I'm suppose to do?"

"You know how Sonic is when he gives those looks." Tails said, laughing. He look around at his room showing posters, toys, and a costume of his favorite hero. "Who is this guy? It he like one of your favorite person with all these collection of the same guy?"

"Trust me. You'll gonna love him. Come on. I have the video right here." Izuku said as he ran back to his seat in front of the computer. Tails followed him while Sonic examines the poster of the muscular man, smiling. The hedgehog look at his teethes. He look to his left to see a mirror next to him. He look at his own teeth then look back at the poster. He came in question on them to see who teethes were better. "Hey, Sonic. Hurry. You're gonna miss it." Izuku said.

The hedgehog ran up to the computer. Izuku press play as the video begin. He had a big smile on his face, with a little red cheeks appearing. The video shows a footage of a helicopter that crashed landed in a street along with vehicles that were in the wreckage somewhere in the city. Fires were seen in the background. Many civilians stood in front of the crash site. The Camera man look around at even before he stopped to see a man in front talking with him in a panic tone. "Who is he? The guy already saved a hundred people at least and it hasn't been ten minutes. I mean… this is crazy. I can't believe it!" the man said as the camera moves around at the wreckage.

Suddenly, a silhouette figure appears to climb on a bus that was in the wreckage. Izuku smiled even more. Both Sonic and Tails eyes were wide at what they seeing. The muscular figure walk on the bus, laughing as he carried a couple more civilians in his arms and more on his back. "HA HA HA HA!" the figure laughed, walking on the bus.

"Look! He's got more!" the man on the video yelled.

"No way! He rescue everyone in the destruction. That's crazy." Tails said as Sonic has his mouth wide open, shocked at what he was seeing.

"Fear not citizens! Help has arrived!" the man said.

"Who is that?" Tails asked.

"That's All Might! He's is known as the Symbol of Peace!" Izuku said, still looking on screen, overjoyed. "You can tell I have all of his collection in my room. He's one of my favorite heroes. I hope someday I get a chance to meet him."

"All Might? That's a pretty good name. Right, Sonic?" Tails look to see the hedgehog, still has his mouth and eyes wide open at the Hero on screen. Both he and Izuku laughed at the hedgehog's reaction. "I guess he's stunned than ever to see him."

They proceed to watch the video of the camera showing All Might smiling before speaking. "Because I am here!" the Symbol of Peace said.

Those words made Izuku excited like never before. "He's the coolest in the universe!" he raised his All Might figure in the air, looking at it. "And once I get my Quirk, I'm gonna be a hero just like him!" Izuku then did a mock laugh like All Might would do. That gotten both Sonic and Tails attention. The hedgehog just look at him. Tails decided to join in on the laugh.

Suddenly, the door open where Inko walked in. "Izuku, is there someone talking to you?" she asked where it was just him in the room. Not one sight and both Sonic and Tails with him.

"Uh, no. It was just the computer. That what it was." he said, rubbing the back of his head and laughing at the same time.

Inko just stood there with her finger her chin. "Uh,.. okay honey." she said before closing the door. She stood behind the door, thinking that her son was talking with someone. "I could've swore I heard Izuku talking with someone. I wonder who it was?" She stood there for a couple of seconds until she decided to just forget about it. "Hmm. Maybe it was my imagination." She walk off to the living room.

Meanwhile, the boy jumped from his seat and look underneath the bed to see both Sonic and Tails hiding from her. They crawl out from underneath once she closed the door. "That was close. You gotta keep it down. She would've known by now or she'll kill me." he said.

"Good thing Sonic had that quick dash to the bed." Tails said as Sonic nod his head with a thumbs up and a smile.

The three continue to watch the All Might video over and over again. In the hedgehog's mind, he would love to meet All Might someday if there's a chance.

However, in the living room, Inko sat in the sofa with her head down. Feeling real bad for her son because they were to head to the Doctor's Office the next day. She had a bad feeling of what was to come real soon.

The next day, at the doctor's office, Izuku sat next with Inko. The doctor sat in front of them where in between on the wall next to them was the X-Ray picture of Izuku's Left Foot hanging on the X-Ray Lamp to get a good look. "Sorry, kid. Its not gonna happen." the doctor deliver the most devastating news. It cause Izuku to drop his All Might figure to the floor, sitting there with his eyes shown disbelief and trauma.

Inko put her right hand on her son's back to confront him. "Oh, dear. So you really think they're something wrong, then? Most of the other Kindergartners in his class have begun to show signs already." she said to the doctor.

"My record says your a Fourth Generation Quirk user." he said. "What powers did you and the boy's father have?"

"Nothing too special." she replied, using her left hand to float the All Might figure towards her hand. "I can float objects completely towards me and my husband's breathe fire. They're useful enough I suppose."

"Izuku already should've manifested one of these Quirks for a combination of both. After viewing his X-Rays, I don't think he's going too." the doctor explained. "You see when superpowers first begin appearing, there were many research studies conducted and doctors discovered a length between the bone in a person's foot and the likely hold they developing a Quirk. People with powers have only one joint in their pinky toe. They're bodies evolve into a more streamline version of the human form." The doctor point his finger of where toe was. "You can see here that Izuku has two joints in his pinky. Like roughly twenty percent of the population these days. Based on the research these days, is safe to say that your son won't be developing a Quirk."

The whole news left Izuku completely devastated. Only Inko could feel bad for her son.

Rain was poring throughout the night at the apartment complex. In Izuku's room, the boy watched the same video the previous night again. Inko stood in front of the door before turning slowing to her son, looking at his computer. She felt so bad for him and don't know what to do. "See that mom?" he broke the silence in the room. "There's always a smile on his face no matter how bad things get." His voice begins to shake suddenly but still continue to speak. "Even when things are impossible, he never gives up."

He then turn his chair around to face his mother. Inko begin shedding tears where she saw her son, floating tears out of his eyes and pointing his finger at the screen of All Might smiling. He was shaking where the words that brought up completely devastated her. "…Do you think… I can be a hero too?" he asked that question.

Inko walked slowly towards her son. With her arms lifting up, she was inches away from him. She then ran up to her, falling on her knees, hugging her son. "I'm sorry, Izuku." she said, sobbing, holding him so tight. "I wish things were different."

The two were crying together in the dark. They didn't notice that both Sonic and Tails were in the closet, watching the whole scene with the door open a little. The fox cub shed tears, feeling so bad for the young boy. "I wish I can comfort him. I feel so bad for him. He always dream of becoming a hero." Tails whisper with more tears coming from his eyes.

The hedgehog could only look at the sight. His head was down with his eyes closed. Feeling bad for the boy.

Suddenly, Tails saw his watch light up. Luckily it was on silence mode so they won't be caught by Inko. The fox cub clean his face to end the tears. He and Sonic look at the watch. The radar indicate an enemy in space… "Sonic, its..." Tails couldn't finish when he look at the hedgehog's face. It show a serious one as he nod his head towards his partner.

The next day, both Sonic and Tails return to the airfield. They were getting ready to leave the city and the planet to return home. Tails hopped inside the Tornado's Cockpit while Sonic stood on the top wing as his usually seat. The fox cub was about to push the engine button until they heard a boy's voice. Turning around, they saw Izuku running towards them.

The Anthropomorphic animals jumped off the plane to meet with the boy. They see his eyes all puffed up red from all the crying he went through last night after the devastating news of him being Quirkless. "You okay, Izuku? Tails asked in a soft tone.

"Still a little hurt." the boy responded. "I'm sorry you had to hear that. I'm just sad it had to come that way."

"Its not your fault, Izuku. You always want to dream to become a hero someday. I know you will. Just have to trust your instinct." Tails said.

"I doubt that. My mom is just devastated just as I am. And now, I'm gonna be picked on at school by everyone including Kacchan because I'm Quirkless. I didn't even bother going to school today because of what to expect." Izuku said, with tears coming from his eyes. He quickly rubbed it with his arms before changing to another subject. "By the way, why you told me to come here?"

Both Sonic and Tails look at one another. The hedgehog nod his head with a serious face at the fox cub. "The reason we call you here is that… "sigh"… Sonic and I are about to leave this planet. I know its difficult for us to say goodbye, and we had some fun times, but we have a mission that we need to take seriously. Please don't feel bad for us because we're leaving you alone."

Izuku was shaken more with tears coming out. "B-But… why would you go? We had all the fun time hanging out with one another. Is this about me being Quirkless? Is that why you're leaving?" the boy asked, angrily trying to hold back his crying.

"No, no, no. Its not that. We don't make Earth our home. Like I said, we take our mission very seriously. Please don't cry. I promise that Sonic and I will return in the future to be with you." Tails said, patting the boy's back as he calms down.

"I-I really don't want you two to leave. You guys are perhaps the bested friends I've ever would've thought." Izuku explained, with his head down. "I never had friends at school and even though Kacchan and I were friends before, he always bully me thinking he has a better Quirk." He look up to the hedgehog. "You save me from being attacked by Kacchan and his friends. I thank you for what you did for me. I always felt save with you guys from being bullied by everyone else. Now once your gone, they'll be coming after me again."

Tails felt bad for the boy. Izuku look down on the ground again with tears dropping from his eyes. Sonic looked at the boy, feeling bad for him so much at what he went through. Suddenly, the hedgehog formed a smile. He walked back towards the Tornado. Hopping in the cockpit, he grabbed something and walked back to the boy. He tap of finger on the boy's shoulder. Izuku wipe his tears away with his arm, looking at the hedgehog. Sonic raised his hand, holding an object in front of the boy.

It was a green emerald that grew a bright light from it. Izuku eyes went wide, seeing the object in front of him. Tails was stunned at what Sonic was doing. "Sonic? Are you crazy? What are you doing?" the fox cub asked as the hedgehog point his finger at the emerald and then point his finger at the boy. "No way! You can't be serious?!"

"W-What he talking about?" Izuku asked with a shocked face.

"He want to give you this Chaos Emerald for many reasons. This emerald can make you stronger than ever despite being Quirkless. You can try to take down many of the people that tries to bully you. This can help you survive and your goal to become a hero in the future." Tails said.

Izuku could only look the emerald more than ever. "What is a Chaos Emerald?" he asked.

"A Chaos Emerald are an ancient emerald and mystical relics. There are seven emeralds with different colors. They hold powerful properties and abilities." Tails explained. "Those that hold all seven of the emeralds can use their powers fr variety of things, such as initiating a super transformation, powering machines, and warping time and space. Anyone who combines all seven emerald can control ultimate power."

Izuku was shocked by the information he was getting. "So that means if I have all seven, I can become stronger than ever to be a hero?" he asked.

"Exactly. However, let it be known that if you choose to take this emerald, you'll be hunted down by an enemy who destined to have his hands on this emerald and the other six I mention." Tails said with a serious face.

"W-Who is this enemy?" the boy asked, getting nervous.

Tails look to Sonic, still has that serious look. The hedgehog nod his head for his approval as the fox cub use his watch. He press a couple of buttons on it, lifting in front of Izuku. It shows a hologram figure of a man with black pants and leggings, white gloves, a bald head, pince-nez glasses with blue lenses, a bright red nose, and a very bushy auburn mustache. He wore a red shirt with an oversize yellow collar and gray buckles on his pants.

"This person is Dr. Ivo Robotnik also known as Dr. Eggman." Tails explained. "He is the most evil genius in the universe. He agenda is controlling the entire world. Sonic and I encounter him in the past for many years. His weapons known for building robots to take on everyone who stands in his way of world domination. But the good news is that Sonic has beaten him many time. However, Eggman doesn't know when to quit, he continues to do whatever it takes to defeat us and to continue to move forward with his agenda." The hologram changes to various badniks and robots made by Eggman. Izuku was surprise by the whole thing shown to him.

"Those are scary robots that evil man made." the boy said. "What does it have to do with him and the Chaos Emeralds you mention?"

Tails turn the watch off, facing the boy with a serious face. "That's where you come in. There's reasons why Sonic's giving you the Chaos Emerald. Not only to make you stronger, but to protect it at all cost. Because if it goes to the hands of Eggman and the other emeralds as well, he'll have power for evil in the future. So we're giving you a choice and you have to decide. If you want this emerald, you know the dangers of what's to come. For the hope of your future and your mother's future as well. Are you will take that chance?"

Izuku was surprise by the fox cub's statement. Looking back at all the events of being bulled by Bakugo and many others who called him "worthless" and many others. Plus, his dream of becoming a hero just like his idol, All Might and that came crashing down once he found out he was Quirkless. But now, thanks to Sonic and Tails, he was given an opportunity to grow stronger with the Chaos Emerald in front of him. He knows the dangers of what to come in the future. But he wasn't gonna say no to that offer. His face turn to a serious one for the first time. "… I accept..." he said.

Both Sonic and Tails look at him with a smile from his reaction. The hedgehog gave the emerald to Izuku as the boy hold on to the emerald. Once he touch it, Izuku felt a stronger power transferring throughout his body. The emerald is giving him a ton of strength despite being a boy. "Wow, that's one big power didn't think I would feel." he said.

"Keep it with you at all cost. Don't let it get into the hands of anyone. Including that bully who mess with you. Don't be afraid of nowhere, be yourself and show them… just like All Might said on screen… I AM HERE!" Tails said, doing the same All Might expression.

Izuku couldn't help but smile as he did the same along with Sonic. Once the conversation was over. Tails jumped in the cockpit, turning on the Tornado's engine. The boy and the hedgehog looked at one another. Sonic decided to give him a hug, shocking the boy. Izuku smiled and return the hug. Though he had tears in his eyes. Once the hug was over, Sonic gave him a thumbs up, turning back and jumping on the wing. They said their goodbyes together.

"Sonic, wait." Izuku ran up to the plane where the hedgehog look down. The boy put his other hand in his pocket, pulling an object out. "Here, take this."

The object was an All Might Action Figure that Izuku had in his hand a couple of nights ago when he show them the All Might video on the computer. Sonic couldn't help but smiled. The boy gave the hedgehog his toy, looking at the hero.

"I hope someday when you return, you get a chance to meet him soon." Izuku said as the Hedgehog gave him a thumb up.

After that, the Tornado then lifts off at the end of runway and into the blue sky, disappearing from it. Never to be seen again.

Izuku look at the sky where the wind breeze came in play. He look down at the Green Chaos Emerald in his hands. Looking at it, his face turn to a determine one. "I won't let this emerald get into the wrong hands. I'll protect everyone on this planet and become the Number One Hero. I won't let nobody down." he said, raising the emerald in the air.

Izuku's POV

That was the last time I saw Sonic and Tails. They're parting gift was giving me the Chaos Emerald. It was a tough decision I had to make. But they gave me hope of becoming what I want to become. A hero to protect everyone from any enemy that would do harm to others. My journey was just the beginning of me to fulfill my dreams. With the Chaos Emerald in my hands,… my journey to become the Number One Hero began.

End POV

End Prologue

Author's Note: And there you have it. The prologue is complete and thus the story commence. Hope everyone enjoyed it. I know it was awkward to have the Classic Sonic not talking. I would've have done it like the Sonic the Hedgehog OVA Movie from 1999, but I decided to just stick with it like both Sonic Generations and Sonic Forces. Good thing I put the Classic Tails in to help out on Sonic. Don't worry, next chapter the Modern Sonic will be appearing and it will talk throughout the story.

Anyway, I know you guys have a ton of questions to asked and what you expect down the road in the story. I won't spoil anything but you can DM me on questions to expect on this story. I'll reply to your questions and what you expect down the road. But I will talk about what to expect in this story. It will take place during Season One of My Hero Academia so basely we're going through the Anime but some filter and changes throughout. It will be a little difficult but I'll give it all I can to let you enjoy this story. When we get to Season Two, I decide on that one since another user is doing a Sonic/My Hero Academia Crossover story calls "Footwork" if anyone has read it yet. Pretty awesome story by the way.

Yes, the Chaos Emeralds will be appearing throughout and the Master Emerald. Tails, Knuckles and other Sonic friends will be on this story as well. Since Koji has a pet rabbit, like you saw in Season Three when Class 1-A was moving to the dorms, I thought a friendship with him, Ryoji, and Cream the Rabbit will be an awesome part of the story. The main antagonists no doubt is Eggman, Tomura Shigaraki, the League of Villains and Infinite himself from Sonic Forces, who will be a leathely threat to the Heroes throughout.

It'll be a Harem story so expect some Sensuality Scenes down the road with the MHA Girls fighting for Izuku's Heart

Finally, I got big plans for Bakugo and Monoma, though he doesn't along with Class 1-B don't appear until Season 2 but they will be appearing early in the story. down the road. Trust me, he's the most hated person on the show since I started watching it when it came to Toonami last May.

So there you have it. What to expect in this story. Hope everyone enjoy your New Year's Day. As for me, I got the NHL Winter Classic and some College Bowl Game to watch. The next chapter could come maybe this Friday or over the weekend.

Once again, thanks for reading. Looking forward to the journey down the road. Please review