A/n: in this story it's not until you turn sixteen that you can attend hogwarts. Also I'm trying to make Dudley nicer, well more like making Dudley kinda take Harry's place and him have a younger sister who is the Dudely of this story. Dudley will be attending hogwarts too. Also I will say this now I have only watched the first movie so far, but I will watch the second as soon as I finish book one of this. Oh and I made it to where Ash caught other pokemon in Kalos and that he got back all the pokemon he had left places. Oh and if I make Ash have a pokemon that he didn't have before he caught it in Kalos, even if that pokemon might not be in that region I'm taking a creative licence in that. The exception of this rule are two legendaries and Lucario from the tree of beginning(Which mew revived for Ash) and the riolu from the hunter Jay incident.

Bold means telepathy

Italics means thoughts and regular animal speech

"Pika pi!" an electric mouse shouted to a raven haired boy. This boy looked like the spitting image of sir Aaron, with the exception of his hazel eyes.

"What is it pikachu?" the fifteen year old boy, who had just won the Kalos league, asked.

"Pika!" He shouted, pointing at a brown owl flying there way.

"Um, what is that?" the fifteen year old asked a lucario and a riolu by his side.

"Hmm, it's been some time since a non-pokemon was sent here from the other dimension. I guess someone here is a wizard. It's pretty rare for that to happen, but the magical community made it to where the wizard could communicate with their professor and rotate their pokemon as well as have their pokemon with them in that dimension" Lucario stated.

"Oh! So that's the world you were talking about in one of your lessons" the boy realized.

"Yes, it seems the owl, that's the species of the non-pokemon, is here for you" Lucario stated as the owl dropped the letter in the boy's hands and took off. The boy opened the letter and read the first words.

"Dear Harry Potter" He started "Well it's a good thing my mom told me I was adopted, among other things, when I got home a year ago or I would have been confused. Though, I wonder why they used my birth name instead of my foster name, Ash Ketchum"

"Meow meowstic!" the male meowstic Ash caught in kalos shouted.

"Alright I'll keep on reading. Dear Harry Potter..."

~Two days later~

"I'll miss you mom" Ash stated, hugging his mother, Delilah.

"I'll miss you to Ash, but you be good for your Uncle Vernon and Aunt Petunia while you're in their world and until you get back to hogwarts. Also make sure pikachu stays hidden too!" Delilah stated as Ash let go and started to walk though a light blue swirling portal.

"And don't forget to change your underwear everyday!" she shouted.

"Mom!" Ash whined, though the smile on his face gave away that he was gonna miss her, at least until he could call her with his updated pokedex that also allowed transport of pokemon as well.

"Take care!" She shouted and just like that he left through the portal and waited for his aunt and uncle to show. Though he did get more than a few odd looks for his choice in clothing. Not like I wouldn't have gotten the same looks back home anyway the boy thought with a chuckle.

"There you are!" a chubby, and chubby was being lenient, man stated as he walked up to Ash.

"Oh? Are you my Uncle Vernon?" Ash asked with a sheepish smile.

"Yes now come along" the man seemed in a hurry to get Ash out of public eye. In fact he seemed downright terrified of himself being seen with him.

"I'm sorry if I embarrassed you with my clothing I picked out. It's not really common back home either" Ash stated as he got into the backseat of the car, seeing as his Aunt, he thinks, was up front. His cousin, Dudley if he remembered correctly, was in the back with him.

"Well at least you have manners" Aunt Petunia stated, sounding extremely relieved at that one fact.

"Well my mom practically beat them into me before we left, especially table manners" Ash stated, scratching the back of his neck.

"Pika" The electric mouse agreed, poking his head out of his backpack.

"Woah! What is that?" the skinny blonde with glasses asked as he saw pikachu. The boy started showing that he had inherited his late aunt's magical talents and had become neglected and unloved by his parents when he was six. It was eight months later that his sister, Samantha, was born. She had red hair like her mother and a stern evil looking face like her father, though she inherited her late aunt's pretty figure. She became the favorite and loved one while Dudley was pushed aside.

"Oh, this is my best pal pikachu, he's a pokemon. Also professor Oak gave me two pokemon one for each of you two guys" Ash stated, digging out two pokeballs.

"Pass, I don't want anything to do with...that" Samantha stated, seeming disgusted by pikachu. Ash glared at her before handing Dudley his new pokemon.

"Go ahead open them, they'll be your new best friend's. Professor Oak stated that he'll be sending you a new pokemon each week if you take good care of those two. You get to choose which with this, a pokedex, or a pokemon encyclopedia" Ash stated, handing it to Dudley as well.

"It also serves as a communication device as well as a poke transporter" Ash added as Dudley opened the two pokeballs to reveal a minun and a plusle.

"Those are a minun and plusle, electric types, if you scan them with your pokedex you can find out their gender, attacks, and ability" Ash stated and Dudley did so. The minun was male and the plusle was female.

"I'll call you Professor" Dudley stated, talking about the minun, and then turned to the plusle "And you Teach"

"Why Professor and Teach?" Ash asked.

"Because they both look like really smart pokemon" with that his two new pokemon cheered and took a spot on a shoulder each.

"Well looks like they want to stay outta their pokeball to be with you. That's okay, some pokemon hate their pokeballs, like pikachu, and it seems those two are two of them, right?" Ash asked them and they shook their head vigorously.

"But what if someone sees them?" Dudley asked, worriedly.

"As long as they hide in my backpack they'll be fine. My backpack has no store limit. In face I'm storing a table and chairs in there in case we ever go camping" Ash stated.

"No way! That's so cool! Oh yeah, I'm going to be going to hogwarts with you" Dudely state with a smile.

"That's great! That means we can spend more time together" Ash smiled. All while this was going on it took everything in Vernon to keep from slamming the breaks on the car and yelling at Ash. But he knew if he did he would draw attention from spectators, he had to at least wait until they got home.

~Later at the house~

"Now you listen here! You'll be staying the room upstairs with Dudley, but if you dare to come down stairs for any reason" Vernon growled, poking Ash's chest with his keys.

"I was willing to give you the benefit of the doubt but I don't think I will now. I also wouldn't touch me like that, pikachu won't hesitate to give you a shock. I also don't think you should do it to Dudley either, Professor and Teach seem quite found of him" Ash stated, glaring at his hand.

"Why you-" Vernon was going to hit Ash if not for pikachu giving him a shock of a lifetime and him fainting.

"I tried to warn you, come on Dudley, let's get to your bedroom. I can introduce you to my other pokemon!" Ash suddenly seemed excited and rushed up the stairs with Dudley following right behind.

"Come on out everybody!" Ash shouted, throwing seven pokeballs in the air. Out came greninja, a houndoom, butterfree, a raichu, mewtwo, darkrai, and a charizard. The charizard promptly fired a flamethrower at Ash's face. He just shook off the soot on his face.

"It's good to see you as well charizard" Ash laughed with a smile on his face.

"Why did he do that?" Dudley asked.

"That's just Charizard's way of saying hello" Ash responded.

"I'm glad the professor made an exception for myself and mewtwo to accompany you no matter how many pokemon you have. We'll always be with you like pikachu, I have a feeling you'll need us" Darkrai stated.

"Whoa, he's talking in my head" Dudley stated.

"Yeah, most legendaries can do that. Him and mewtwo are legendaries. How I met them both is quite a story" Ash smiled, reminiscing.

"Yeah, I'm still sorry about what happened when we first met" mewtwo stated, staring at his feet in shame.

"It's alright mewtwo, you didn't make me do what I did, I chose to" Ash stated.

"Which is why, after I found out what you did from mewtwo I decided to teach you that song to help you calm legendaries since you seem to have a knack for somehow finding them when something's wrong with them" darkrai stated with a sigh.

"Hey! It's not my fault! It just happens! Besides Lucario started teaching me how to use my aura as well as I'm going to learn to use magic!" Ash protested.

"Are you two as lost as I am?" Dudley asked his two pokemon.

"Min/Plus" they both agreed on being confused.

"Good, I'm not the only one" he sighed.

"Sorry, I guess we should talk about something else" Ash stated, smiling with a sheepish smile.

~A month later after Hagrid takes them to Diagon Alley and they get their school supplies(along with an owl for each of them(A white one for Ash and a pure black one for Dudley) and the Dursleys drop them off at the station~

"Ash, I think I know what Hagrid forgot to tell us" Hedwig, the white owl that Ash named because, unlike pokemon, he couldn't just call her owl. Ash found he could understand all regular animals, though Dudley could only understand owls. It also helped that Ash, and all people in the pokemon world, never ate meat due to the only animals in the pokeworld being pokemon. Ash also refused to eat meat here two, it was against the law in the pokeworld so it might as well been against the law to him here as well.

"Yeah I'm starting to notice he forgot to tell us how to get to platform nine and three quarters" Yami, the black owl, stated.

"Well we could just ask the man over there how to get to it" Dudley stated pointing to the conductor and they were going to do so as well if they hadn't heard a woman mention platform nine and three quarters and they followed her. They pushed their trolley towards them.

"Excuse me, we heard you mentioning platform nine and three quarters and were wondering if you guys know where it is? It's our first time" Dudley stated, looking rather nervous.

"Oh, well it's Ron, here's, first time too. George why don't you show him how it's done?" the woman asked, looking towards one of the two twins.

"I'm Fred, honestly and you call yourself our mother" the twin stated.

"I call myself your mother because I know you're George now show him how it's done" the woman stated giving him a you're-not-fooling-me stare that all mothers somehow know how to do.

"I'm just glad that stare isn't directed at me this time" Ash stated with a chuckle.

"Pika pi pika" pikachu stated, poking his head outta the bag.

"Hey! I just wanted to stay up a little longer to find out more of the new region most of the time. And you're supposed to stay in the bag" Ash stated and shoved his pokemon back in.

"Are you from that other dimension? The one where those...uh creatures? Live?" Ron asked.

"They're called pokemon and yeah pikachu was my first. I have a lot of others, at least over thirty" Ash stated.

"Whoa, that's amazing. I'm Ron Weasley" the redhead stated.

"I'm Ash Ketchum, though that's my foster name my birth name is Harry Potter. Please call me Ash though" the raven head stated.

"Wait you're the Harry Potter?" Ron asked in shock.

"I've been getting that a lot lately, does everyone else know something I don't know?" Ash asked.

"You don't know?!" Ron asked incredulously.

"Not now, Ron, we have to get you on the train" the woman stated.

~Later on the train~

"Hi mom" Ash stated as his mom picked up the phone.

"Ash! Where were you! You were supposed to call me a month ago! Do you have any idea how worried sick I've been!" Delilah yelled at her son.

"Hehehe, I kinda forgot" Ash stated, nervously.

"Well you better not do it again! Anyway I'm sending noctowl with a present for you! Today is your birthday after all, well the day I found you on my doorstep anyway. Noctowl should arrive at hogwarts tomorrow. Until you get your own owl in that dimension you'll have to rely on noctowl" Delilah stated.

"Well Hagrid got me an owl for a birthday present! I named her Hedwig, turns out my actual birthday was yesterday! It's really amazing huh?" Ash stated excitedly.

"Well then you better send Hedwig over so I can send her over there when christmas rolls around and the professor is sending Noctowl's pokeball with him as well he thought it best if you kept him with you at all times along with pikachu, darkrai, and mewtwo" Delilah stated.

"I can't wait to see him again! It'll be so great!" Ash stated excited.

"Oh and Noctowl is also sending you birthday presents from Brock, May, Dawn, Max, Misty, Serena, Clemont, Bonnie, Iris, Tracey, Cilan, and Gary" she stated. There was a muffled sound from Ash's side.

"Alright! I get it! I'll change! I gotta go my I have to change into my hogwarts clothing, wish they looked different" Ash sighed as he hung up and Delilah smiled. She made Ash hogwarts clothing to look like his current clothing only in maroon and yellow, gryffindor colors. She had a feeling that was the house he was going to be sorted in, after Dumbledore explained it to her. She had a bet going with him, Dumbledore thought Ash would be hufflepuff based on what she told him and she thought he would be gryffindor. The bet was if she won that Ash would get to wear the clothes she made for him in the gryffindor coloring and if not she had to provide Dumbledore with a pokemon. If you couldn't tell the two of them hit it off real fast when she first contacted him about the school when the letter first arrived.

~Later~

"Harry Potter" professor Mcgonagall stated as Ash stepped up, there were definitely a lot of whispers.

"Professor, I prefer Ash Ketchum, it may be my foster name but it's the name I've gone by all my life" Ash stated with a sheepish smile.

"Oh, well I'm sorry, I see now they marked you as Ash Ketchum. That's my mistake, I apologize" Professor Mcgonagall stated, an embarrassed blush decorating her face.

"It's fine professor" Ash smiled as he took a seat and she barely put the sorting hat on before it shouted "Gryffindor!"

"It seems young Ash's foster mom was right about him" Dumbledore stated with a smile and the same twinkle in his eye that had always been there.

"What do you mean?" Snape asked, turning to Dumbledore. The only reason why he wasn't glaring at Ash outright is because he heard him refuse to be called a Potter and that made Snape be willing to give him a chance.

"Well I made a bet with the boy's foster mom on which house he would be put in. I said Hufflepuff, based on what I had heard about him, and she said Gryffindor. If I won I would've been getting a pokemon but since she won I'll have to allow Ash to wear his mother's version of the Gryffindor uniform" Dumbledore stated with a smile.