Hello readers and welcome to my new story. I decided to create this story for several reasons. One, the idea has been in my head for awhile. Two, there's aren't that many Harry Potter x Negima crossovers where Harry is at Mahora (Not counting the ones under ten thousand words). And three, there aren't that many Negima fanfics with a harem plot. So, I decided to help increase the number of those certain fanfics. So, here are the harem I decided on:

Negi: Nodoka, Yue, Ayaka, Makie, Fei Ku, Fuka, Fumika, Setsuna, Konoka, Sao, Ako

Harry: Asuna, Chizura, Chisame, Chao, Kaede, Akira, Haruna, Kazumi, Mana, Chachamaru, Evangeline, Yuuna

If you feel like any of the other girls should be with either of those two mages, or feel that one of the girls listed on Negi's side should be on Harry's side and vice versa, feel free to give your thoughts on a review. Make sure to give me a good reason as well, not just because you want them to be. So, I hope you enjoy this fanfic.

P.S. Harry is born in the Negima world. Other Harry Potter characters may show up as well.

Disclaimer: I do not own Harry Potter or Negima.

Chapter 01: First Day Teaching

"So when will I meet my fellow sensei, headmaster?" A young black haired boy asked. He's wearing a black suit, with a green tie that matches his eyes and black dress pants. He has thin glasses on, pale skin, emerald green eyes, and a scar resting on his forehead.

The headmaster, Konoe, answered. "He should be there soon. You should get outside to meet him Harry-san." The young man, Harry, nodded and went to do just that.

His full name is Harry James Potter, a japanese and former british wizard. He's a fifteen year old boy, sixteen under kazoe, who lived in England for six years, traveling around for eight more, and then Japan for nearly two years.

His life have been a rollercoaster. From the death of his parents at age one to the abuse he suffered for years to all the adventures he had by himself. Because of what he went through in his life, he had to matured mentally, as well as developed skills to survive against even the most toughest foes.

But that's a story for another time. Right now, Harry is at the entrance of the school, avoiding the female students running into the school, and waiting for the soon to be fellow professor, Negi Springfield.

He thought about the british wizard. It's hard to believe that the young man is a prodigy in both regular and magical teachings. Then again, he wasn't a slouch in either of those things, hence why he's going to assist Negi in the field. He wonder how Negi is going to be like. 'Hopefully, he won't be a bias bigot like back at my former home.' Harry thought to himself. 'Negi's ten though, so I probably won't have to worry about that for a while. Not ever, if he got raised right.'

Speaking of which, he'll have to watch out for the young ten years. The school their teaching at is an all-girl school, and no doubt all the girls will be gushing over his cuteness. Class 2A especially, considering his experience with those girls during his two years.

He broke out of his thoughts when he heard a familiar shout of rage. He sighed. "Who got Asuna angry this time?" Harry mumbled to himself before going to check it out. He ran over to the shout originated to see Asuna manhandling a redheaded child, with Konoka watching from the sideline.

'That must be Negi.' Harry thought as he got a good look at the boy. He's small, a ten years old usual height, with red hair, fair skin, and glasses. He's wearing a green underneath the brown trench coat he have on, as well as a big bag for his age and a staff.

The one lifting him up off his feet and manhandling him, Asuna, is a orange haired girl with two long twin tails, as well as bells that holds them together. She also have a green eye on one side and a blue eye on the other. Finally, the last girl, Konoka, has black hair and brown eyes. The two girls are wearing the Mahora uniform.

He sighed once again before deciding to intervene. "Asuna, whatever got you angry isn't worth strangling a little boy." Harry called out to her, gaining her, Konoka, and Negi's attention.

"Harry?" Asuna voiced out, dropping Negi. As the boy landed on his butt, she turn to him with her hands on her hip. "Aren't you usually with Shizuna-sensei?"

"Usually, yes, but we need him for something." The four look up to see Takahata-sensei up top, looking from the window. "Hello Negi-kun. I see you arrived at Mahora."

The three teens and one child gave their greetings to the teacher. For Asuna, a shy greeting, for Konoka, a polite greeting, and for Harry and Negi, casual greetings. That is when Asuna noticed something. "Wait, you know him Takahata-sensei?" Asuna questioned in shock, referring to Negi.

Takahata nodded. "Indeed, and welcome to Mahora Negi-kun. It's a large place, isn't it sensei?"

"Sensei?" Konoka questioned in surprise. Asuna is also shocked, well, more shocked.

"Ah, yes, that's right." Negi said. He cleared his throat before formally introducing himself. "Hello. My name is Negi Springfield, and I'm going to be teaching English in this school."

Asuna's and Konoka's eyes widened. "Wait, you mean you mean you're going to teach at our school? A brat like you?" Asuna raged, ready to strangle Negi once more. Luckily, Harry put Negi behind him to make sure that doesn't happen.

"Actually, Negi-kun is pretty smart for his age." Takahata assured Asuna. "Not only that, but Harry will be assisting him with classes."

Asuna and Konoka looked even more shock. "Harry-kun is going to be teaching too?" Konoka asked, getting a nod from Takimichi.

"But sensei, even with Harry teaching us…."

"And from point on, they'll be taking over Class 2A instead of me." That shocked Asuna to the core.

"You gotta be kidding me sensei! Harry is one thing, but you can't expect me to accept that this kid will be teaching us!" Asuna cried out, in tears. "Especially when he said, er, something very rude to me!"

Harry leaned down towards Negi. "What did you to say her?" Harry whispered. While Asuna has a temper, she isn't that hostile unless if have to do anything with Takamichi.

"W-Well, I said her love will be unrequited." Negi answered quietly.

Harry facepalmed. 'That explains it.' Harry thought to himself before speaking out loud. "Negi, that is not something you say to anyone, especially a girl."

"But it's true…."

Unfortunately for him, Asuna heard. "No it's not!" Asuna cried in anger before trying to strangle him once more. Keyword tried, as Harry grabbed Asuna by the waist to stop her.

"Asuna, calm down! Calm down!"

"I hate kids! Especially annoying fleas like him!"

Harry gritted his teeth. He'll have to take more drastic measures. But before he could do anything, Negi suddenly sneezed, causing both Harry's and Asuna's clothes to shred off of them.

Silence ruled the area. Harry and Asuna froze in shock, just for a second, before Asuna screamed and jump out of Harry's arm to cover herself. Konoka blinked in shock at what just happened, not registering that her male friend is in his underwear, while Takahata looked away from Asuna.

Harry blinked as he look at himself. "Didn't see this coming."

"What the hell's going on?!"

(Principal Office)

"Principal-Sensei, what is the meaning of this?" Asuna questioned, in a gym outfit. After she and Harry got properly dressed once again, with Harry getting a spare suit, the new teachers, older teacher, and the students went to the principal office.

"If it isn't Asuna-san," Konoemon said before putting his focus on Negi. "So, your training is to become a school teacher here. You've been given quite the task." The principal commented. "I'm Konoemon Konoe, the principal of this school."

"Y-Yes, nice to meet you sir." Negi said politely, giving a slight bow.

"While you may be smart enough to teach here, you are still young and need practical experience." Konoe told him. "So, let's start from today and March."

Negi nodded. "By the way Negi-kun, do you have a girlfriend?" The dean inquired. "What do you think of Konoka? She's my granddaugh-"

"Oh Grandpa!" Konoha stated cheerfully, hitting the elderly principal with a hammer to stop him. Harry sweat dropped. That man is determine to pair up Konoka with somebody. Well, at least he stopped doing it with him.

"Wait a minute please!" Asuna cried out to the principal. "Isn't it odd for a child to teach a bunch of middle school girls? And as our homeroom teacher as well?"

Konoemon ignored her for right now. "Negi-kun, this job will probably be very difficult for you." He told him, becoming very serious. "But I won't ignore that you're still ten. That is why Harry will be helping you with your teaching career."

Harry nodded. "I'll make sure you do your job properly, with minimum difficulty." Harry told him. "I know all of class 2A for two years now, so I know how to deal with them."

"Still, even with Harry's help, the task will be challenging." Konoemon cut in. "If it's too hard for you, you will have to return home. No second chances. Are you prepare for this?"

Negi took a deep breath, gathering up his courage and determination, before speaking. "Yes, I'll do it!" Negi said with conviction. "Please, let me try!"

"Then it settled." Konoemon said, ignoring Asuna's look on her face. "We'll begin today. First, let me introduce you to our staff guidance officer, Shizuna-Sensei. Shizuna-kun!"

Negi turned around when he heard the door open, only to met with his face in someone's chest. He looked up to see a blue haired woman, with a motherly smile, looking down at him. "Oops. Sorry about that." The woman said. "I'm Shizune-Sensei, as you already know. If there's anything you don't understand, then let me know. Nice to meet you." She ended the last sentence with a wink.

"Ah, ok." Negi said, blushing a little before he stood back quickly. Shizune giggled at this while Harry rolled his eyes. Shizune has always been a tease.

"Oh, and one more thing." Konoemon suddenly spoke up, the thought just now crossing his mind. "Konoka-san, Asuna-san, since Negi don't have anywhere else to stay for right now, can he stay in your room? We haven't decided where he would stay yet."

Asuna was silent for a moment before her mind processed what the principal asked. "What?!" She shouted, slamming her hands on the desk. The dean doesn't look the least startled. "From when until when, Principal-sensei?!"

"Oh come on Asuna, I don't mind him staying with us." Konoka said, rubbing Negi's head. "Don't you feel sorry for him?" Harry raised an eyebrow and slightly smile at how the ten year old seemed to be hooked towards the kind girl. And from the looks of it, Konoka is quickly getting attached to him as well.

"I told you, I hate little kids!"

"I hope you two get along." Konoemon, seemingly unaware at the tension between Asuna and Negi. Harry sighed. This is gonna cause problems, he just know it.

As all of them walk towards the classroom, Konoka, Shizuna, and Harry can see the tension between Asuna and Negi. "Shizuna, any idea on how to deal with those two?" Harry asked Shizuna.

"For right now, let them deal with their problem themselves." Shizuna instructed. "But it make sure they don't do anything they would regret, especially Asuna." Harry nodded.

And just as he said that, Asuna spoke up towards Negi. "I refused to sleep in the same room with someone like you!" Asuna stated to Negi. "Go camp outside with a sleeping bag or something! I'm going ahead! See you later sensei."

With that, Asuna left them with Konoka following her, after giving Negi an apologetic expression. "Well that could've gone better." Harry deadpanned. Shizune nodded to this.

"You may have to put a firm hand with Asuna." Shizuna told him, getting another nod from the teen mage. She then went towards Negi's side, who looked to where Asuna and Konoka went. "I'm sorry about Asuna. She's just a little rowdy, but we can confirm that she is a nice person." She then pull out a class roll book and handed it over to Negi. "Here, this is the class roll book. Use this to take roll and memorize names."

"Ah. Thank you, Shizuna-san." Negi said gratefully. He then noticed that Harry doesn't have a roster. "Aren't you going to give Harry a roster?"

Harry chuckled. "Don't worry about me Negi. I know all these girls in some form, so I don't need a roster." The three stopped at the door where the class 3-A is at. "Here we are. Class 3-A."

"Now, are you sure the both of you are going to be okay?" Shizuna asked, showing motherly concerned for the two boys.

While Negi looks a bit nervous at the number of girls, Harry nodded. "We'll be fine Shizune. I know how to deal with some of the troublemakers in there." Shizuna nodded.

Harry turned to the younger boy. "You ready Negi?" The boy still look nervous for a moment before it change into determination and nodded. "Alright. Let's go introduce ourselves then."

With that, Harry opened the door and the two walked in, with Negi going first. No sooner that they did, an eraser started dropping towards Negi's head.

After Negi made the eraser float for a bit, Harry grabbed the eraser before it could hit Negi's head. Negi looked at it in slight surprise, causing him to miss the trip wire, and end up tripping on it. Harry quickly pulled him back, just as a bucket of water fell on the floor. Before he could relax, he felt three projectiles coming towards them, causing him to push Negi down and duck, dodging three arrows.

Harry got up, and got Negi up before he walk to the front of the class with Negi, the class staring at him in shock. Negi also look at him in admiration. "Next time that happens, there are gonna be consequences." Harry stated calmly, his eyes showing some annoyance.

The girls were silent for a moment, shock at the display, before everyone gathered around the child and teen.

"A kid?!"

"And Harry?!"

"Are you two okay?"

"I'm sorry, we thought you guys were our teacher!"

Shizuna clapped her hands together, gaining the girls' attention. "Those are your teachers girls. Introduce yourself you two, Negi. Harry."

"O-Okay." Negi said. He took a deep breath before introducing himself. "Hello there. My name is Negi Springfrield. And from today onward, I'll be teaching ma-" Harry discreetly elbowed him to silently correct the boy. "I mean English, as well as your homeroom teacher. It's nice to meet all of you."

"And I don't think I need to introduce myself to all of you." Harry continued. "I'll be helping out Negi with his teachings, as well as anything else he needs. Hope we can still get along."

The whole class was silent for a moment. Knowing how energetic a majority of the class is, Harry mentally count in his head. 'Three, two one.'

"He's so cute!"

"We got Harry-kun!"

And in less than a second, Harry and Negi got glomped by almost every girl here. Negi yelped and blush while Harry merely blushed at the girls pushing their bodies on them.

The girls then started asking questions. "How old are you Negi?!"

"Um, ten."

"Where are you from, nationality?"

"Wales."

"How did you the two of you get this position? We knew Harry was smart, but not this smart." This time, it's a question for both of them.

And this time, Harry answered, trying to ignore the fact that the girls are pressing their bodies on them. "Negi and I are fluent in English to a university level, so we're qualified"

"Wow!"

"Amazing!"

"It this for real?" Chisame asked Shizuna. The guidance officer nodded.

"So we're really gonna have two child geniuses as our teacher?!" Sakurako asked. "We can really have both a cute kid and our cute teen?"

"Now, now, you can't have these two. They're not food." Shizune chided the girls. "Harry and Negi has all the credentials, but Negi is still a child while some of you know that Harry can be a bit shy. Treat them well, okay?"

"Okay!" The girls agreed happily. The happy chattered soon turn to silence when Asuna suddenly grabbed Negi by the collar of his shirt.

Harry, who now have room to get up, did just that and look at Asuna. "What is it this time Asuna?"

"I want to know what this teacher did with that blackboard eraser there." Asuna told him. "You did something weird to it, didn't you?" That got some confusion from the other girls, as well as nervousness from Negi. Then Asuna started shaking him. "I want a clear explanation!"

"Asuna, that's enough!" Harry commanded, slamming his hands on the desk. Asuna stopped manhandling when Harry shouted at her. "From today, Negi and I our your teachers, and you will treat us as such during school hours! Now let go of Negi, or so help me, you will get detention!"

The whole class was silent, amazed at what transpired. Shizune smiled, seeing that Harry really do have this handled. Asuna wanted to argue with him, but the firm glare and the commanding aura a teacher would have made her back off, and let go of Negi. "Good. And what do you say to Negi?"

"...I'm sorry sensei." Asuna muttered bitterly. Harry nodded. Negi, meanwhile, look at the older boy in awe. He was able to control Asuna with just a couple of sentences.

"Good." Harry said in approval. "Now, I want everyone to take their seats so we can begin class." All of the students took their seats. He turned to Shizuna. "We got it from here Shizuna."

Shizuna nodded. "Okay then. Call me if you need me." With that, she left the class, leaving Negi and Harry alone with the the female students.

"All right. I'll this part to you Negi." Harry told him. Negi nodded gratefully and turn to the class. He gulped, nervous from the stares of the female students.

"Um, alright. Turn to page 128 and…." Negi turned and try to write on the chalk board, only to flail his arm around in an useless attempt to do so. Harry sighed while the girls giggled at the scene.

He was about to help the boy out when Ayaka suddenly appeared beside Negi, with a fancy little stool. "Here, use this stepping stool sensei." Ayaka, the class president, offered kindly.

"Ah, thank you, um," Negi said, looking at the blonde and trying to remember her name. Considering he only briefly looked at the roster, you can't really blame him for not knowing her name.

"Ayaka Yukihiro, sensei." She introduced herself. "The class president here. If there's anything you need, I'll be glad to help."

"What's with the nice facade lincho?" Asuna called out, narrowing her eyes.

Ayaka merely smirked. "It's only natural that I'm a nice girl on the inside, since I am one on the outside."

"What's nice girl? You shouta-con!" Asuna stated, a smirk of her own. Harry resist the urge to groan when he saw Ayaka's angry look. He better stop this quickly.

"Thank you Ayaka." Harry spoke up, drawing her attention away from Asuna. "But would you mind taking your seat, so you we can begin class?" Ayaka nodded, giving one affectionate look towards Negi and glare towards Asuna before sitting down. Harry resist the urge to roll his eyes. If he couldn't understand Asuna's infatuation with older men, he won't understand Ayaka's taste towards the younger side.

As class continued on, Harry noticed that Asuna planned to hit Negi with an eraser. When Asuna flicked one piece towards Negi, Harry swiftly grabbed the piece before it could hit, Negi. Asuna then threw, another, then another, until Harry got eight pieces. "Whoever is throwing those erasers, would you stop?" Harry asked as he put the erasers on the desk. Asuna's eyes widen a bit at that, as Negi stopped lecturing when he heard that.

Ayaka look at Asuna with narrowed eyes before looking towards Harry. "Harry-sensei, I would continue watching Asuna." Ayaka whispered to him. "I know you're friends with her, but you are aware of her violent tendency. I don't want her harming innocent Negi-sensei."

Before Harry could say anything about that, Ayaka suddenly got hit by a ruler on the back on the head. Ayaka growled, turning towards Asuna. "That's it Red, you're going down!"

"Bring it Blondie!" The two then started fighting one another, with the others cheering and betting who would win.

"Girls, enough fighting." Negi cried out, running towards them. "Whatever disagreement you have will not be solved with viole-" Before he could finish, he got caught in the crossfire and thrown towards the wall.

Harry then tried to stop the two. "Asuna, Ayaka, stop this at once!" Harry demanded, getting between the two and pushing them away. But that was a bad idea for him, cause Asuna sent him a hard punch in the eye, knocking him down.

Everyone silent, with Asuna and Ayaka stopping the fight, when they saw that they knocked down a dizzy Negi and a groaning Harry, with the two of them slowly getting up. Before the two could say anything, the bell ranged, signaling the end of class. That cause all the girls to go talk to one another around the class.

"The class is over?" Negi asked, feeling and sounding very small.

Harry sighed as he got up and held his bruising eye. "Yes, yes it is." Harry said with an aggravated tone. He gathered the school supplies, as well as helped Negi with his own supplies, before the two left the class.

Neither did the two realize that the class stayed silent when they heard and saw Negi and Harry leave the room. "Well, I don't know if it's just me, but I think we ruined the class for them." Haruna spoke up.

Some winced at that. "I agree." Ayaka said, ashamed at how childish she was acting in front of their new teachers. Especially one that knew the whole class for nearly two years. "We need to make it up to them, especially Negi-sensei. Not only it's his first day as a teacher, it's his first day at Japan. We need to show him that he's welcome here."

"Lincho is right!" Misa agreed with the class president. "We should throw them a party, a congratulation party for Harry-kun and a welcoming party for Negi!" Many of the girls cheered at that idea. They are going to make Harry and Negi feel so happy when they're done!

And that's the end. Wow, I make a long chapter. Not as long as other chapters I've seen in stories, but still pretty long. Don't expect for every chapter to be this long. Again, if you have an opinion on the harem I set up, feel free to review and give out your opinion, in a polite and respectful way. No flaming. Review, favorite, and follow and I will