Ninjagirl: I wrote this as an essay we were supposed to do at school but thought, why not put it on as a fanfic? Well, here it is, my newest story. Oh, and I don't own anything but Kaya, her yami, and the plot. Now, enjoy!

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Chapter 1: The Invitation to Hogwarts

One day, a girl with long brown hair and a little bit of red at the end in a ponytail and blonde bangs named Kaya Motou was walking to school one day when an owl flew down at her and dropped an envelope in front of her.

"Hey, what's this?" she asked, picking it up. It felt thick, so she looked at it. It read:

Kaya Motou

High School Street

Domino, Japan

"What in the world...?" She opened it. The letter inside read:

Dear Miss Motou,

You have been accepted at Hogwarts School of Witchcraft and Wizardry. Your book list for this year is included. You will be enrolled as a fifth year. The Hogwarts Express will be in London on September first and will leave promptly at half past seven. You will need a wand and robes, too. See you at Hogwarts!

Sincerely,

Albus Dumbledore

Headmaster of Hogwarts

"Should I accept?" she said out loud, seemingly talking to herself.

A deeper voice, but similar to hers, said, "I think you should, hikari. Who's 'Dumbledore'?"

"I'm as clueless as you are, Anèa. Yipe! September first is a week from now! How am I going to get all this by then? And where can I find it?"

"Maybe I can help," a boy with unruly jet-black hair, who had been lying in the bushes, replied, getting up.

"Who are you?" Kaya asked him, her eyes finding the lightning-bolt scar on his forehead.

"My name is Harry Potter. Who are you?"

"I'm Kaya. Kaya Motou."

"Are you Yugi Motou's sister?"

"Yes, I am! Are you a fan of his?"

"Umm...kinda. I've started playing Duel Monsters myself."

"I can give you a few tips!"

"If you can give me tips on the game, then I'll help you get all the stuff you need for Hogwarts!"

"That'll be great! Thanks."

"Oh, great, here comes my cousin, Dudley Dursley, and he's a bloody pain in the ass."

"I'll take care of him." Kaya walked up to the kid Harry was talking about, who was about half the size of their car, and held her hand out with the palm up. "Hi, I'm Kaya!"

Dudley stared at her, confused. "That isn't the way you shake hands!"

"This is the way you shake hands here in Japan. Go ahead, slap my hand."

"Okay." He slapped her hand, then almost immediately pulled it away, yelling, "GHOST!" for he had seen a ghost-like hand come out of her hand and try to grab his.

"What the hell?" Harry yelled, scared half out of his wits after seeing what had just happened.

"Just a little bit of magic," Kaya whispered in Harry's ear.

"How did you know...?"

"How did I know what?"

He leaned over and whispered in her ear, "How'd you know he was scared of ghosts and magic?"

She laughed. "I have my ways..."

Dudley started making fun of them. "Harry's got a girlfriend, Harry's got a girlfriend!"

"Do you really want me to send the ghost after you?" Kaya asked Dudley.

The fat boy froze. "N-n-n-n-no...I-i-i-i-i'm s-s-s-s-sorry..."

All of a sudden, there was a chill in the air. "What the heck?"

"Shit...dementors..." Harry started walking toward them. "EXPECTO PATRONUM!" he yelled, whipping his wand out. The dementors almost immediately backed off.

"Whobewhaties?" Kaya was confused.

"Dementors. They try to suck all the happiness out of you and then, if they get the chance, kiss you."

"Eww...I'd rather have a dog kiss me than those things. Blech!"

"Actually, that's what they call it when they suck your soul out of your mouth."

Kaya stared at him with her mouth wide open. "You're kidding! My boyfriend, Seto Kaiba, got his soul taken once..." She turned away, trying to hide her tears after remembering. "I hated that moment..."

Harry put a hand on her shoulder. "Sorry I had brought it up..."

Kaya smiled a small, teary smile. "It's all right, I get reminded of it a lot..." She wiped her eyes with her sleeve. "I just can't get over it..."

"Wanna come in the house?"

"Sure, thanks!"

They went inside Harry's house. "C'mon, let's get up into my room quick before-"

"WHO THE HELL IS THIS? DIDN'T I TELL YOU NOT TO INVITE ANY OF YOUR KIND IN?" a man shaped like Dudley yelled at Harry.

"What does he mean by 'your kind'? And," she added, whispering in Harry's ear again, "is he scared of ghosts as well?"

"By 'your kind' he means wizards and witches, and yes, he's scared of ghosts and magic as well, and that's my Uncle Vernon," he whispered back to her.

"Oh, magic! In that case..." She called down a bolt of lightning with her powers that hit the fat man. "How's THAT for magic!" The whole Dursley family panicked. Harry and Kaya just laughed.

"Good one!" They shared a high five, still laughing.

Kaya glanced at the clock in their living room. "Oh shit, we should've picked my stuff up an hour ago! Shit shit shit...can I see your cards on the way and give you tips from there?"

"Okay." Harry handed her his cards before sticking his hand he used the wand with out when they were out in the street.

"Hmm...got that one...got that one...ooh, that's a good one! Got that one...got that one...Whoa! You must have been collecting for a while! You have a couple of Ground Collapses...those can come in handy at times! Use them in your deck! Got that one..." 'Hmm...no Blue-Eyes White Dragons...and the third Buster Blader! I've got the second and Yugi's got one...' "Common...common...common...rare...extra rare! Whoa...common...Which one's your favorite?"

"This one," he replied, pulling out the Light Magician from the middle of his deck.

"Hmm...the attack is raised by one thousand each turn. Nice! And its level is raised one star..."

"So do you think it's good?"

"You bet I do! My favorite is this one." She took out a card from her deck. "The Black Ninjagirl!" (AN: See where my screen name came from? Oh, and this card doesn't really exist, so don't expect to find it anywhere.)

"Can I see it?"

"Sure, but be careful with it."

"I will." He looked at it carefully. "Is this card connected with the Blue-Eyes White Dragon?"

"Yes, I have three of them, and my boyfriend also has three."

"Say WHAT? I thought there were only three made!"

"No, there were seven."

"You are sooo lucky...who has the last one?"

"Seto ripped it up."

"HE RIPPED IT UP? Has anyone tried to put it back together?"

"No, he ripped it to little bits."

"Damn…."

"I have names for my Blue-Eyes White Dragons!"

"You named them?"

"Dragons need names just as people do!"

"Okay, what are they?"

Kaya took her Black Ninjagirl and put it back in her deck, then took her three Blue-Eyes cards out and showed them to him. "Do you notice that one of them has worn corners? I named that one Shanè, and she has been faithful to me. One is a little taped up because it accidentally got ripped, that one I call Shatè, and the last one I call Bolè because that one seems to be a boy. Shanè and Shatè are twins…Bolè flirts with Shanè and Shatè when he is on the field."

"Oh, really? I've never seen dragons flirt with each other before…"

"Shanè and Shatè don't really like Bolè that much because he flirts with them so much…"

"Oh…I thought they liked him…"

"Only as a friend…want to see MY cards?"

"Sure…"

Kaya gave Harry her deck to look at. He stared at the top card. "NO WAY! THE BLUE-EYES ULTIMATE DRAGON? That's the rarest card there is!"

Kaya giggled at him. "Not really…the rarest is both Ultimate Dragons combined…"

"Man, I wish I could see that…who has the other Ultimate Dragon?"

"Guess who…"

"Yugi?"

Kaya laughed. "Why would he have the other Ultimate Dragon when he doesn't even have the cards to make it? Think now…"

"Oh damn…I don't know!"

"Just guess."

"Um…Kaiba?"

"You got it! It takes three Blue-Eyes and a Polymerization to make the Blue-Eyes Ultimate Dragon, so-"

Just then, there was a huge bang, and Kaya almost got knocked over by a purple triple-decker bus. "Where did that come from?"

"Did you see me stick my hand out? That's the signal for it to stop."

A guy with a ragged conductor's suit and a baseball hat stepped off the bus and said, "This is the Knight Bus. I'm Stan Shunpike and I'll be your conductor this eve-"

"Yeah, yeah, we know already," Harry interrupted him.

"Blimey, it's 'Arry Potter again!" Stan exclaimed. "And it looks like a girl's with 'im, too! That your girlfriend, 'Arry?"

"How many times do I have to say I AM NOT HIS GIRLFRIEND!" Kaya cut in, annoyed.

"It's ok, Kaya," Harry told her.

"Did you just say Kaya?" Stan exclaimed again. "Blimey, we ave a hole bunch of surprises today…"

"Yeah, I know I'm famous," Kaya said.

"Being Yugi's sister, I'll have to say yes, you are famous, almost as famous as I am."

"Can we come in already? I'm freezing…"

"Yes, go ahead! Blimey, I still can't believe it…"

Harry and Kaya went inside. "There were a couple of places reserved for you two."

"Wow, someone was already here?"

"Hey, isn't that Kaiba?" He pointed at a tall, handsome, brown-haired teenager wearing a long trench coat sitting on a chair at the back of the bus.

"What's he doing HERE?"

"Don't ask ME, I have no idea!"

"Hey, Seto, did you get a letter looking like this?" She took out the Hogwarts letter she had gotten earlier and showed it to him.

The teenager she addressed took his out. "Is this what you're referring to?"

"Where's Mokuba?"

"One floor above me. Who's that you're with?"

"Ever heard of Harry Potter?"

Seto was stunned. "Harry Potter? You're kidding!" He had a deep voice you could hear in the third floor.

"Does it look like I am?"

"No, but how did you meet him?"

"He just appeared out of some bushes."

A short kid with tri-colored hair whom they immediately recognized as Yugi Motou came downstairs. "KAYA? What're you doing here?"

"Traveling, same as you are."

"YUGI!" Harry and Seto yelled simultaneously.

"So how's Yami?"

"Ask him yourself." There was a flash of light and a guy taller than Yugi but with the same clothes and the same hairdo appeared right where Yugi had stood.

"Hello everyone," the guy said with almost as deep a voice as Seto's.

"Hi, Yami," Kaya replied automatically. "So how's it going?"

"Better than usual, I guess."

"What're you looking at?" she suddenly asked Stan, who was goggling at Yami.

"How'd he do that?"

Yami shrugged. "The Millennium Puzzle."

"Anèa is begging to come out and talk, so I think I'll let her." There was a second flash of light and a girl with lighter brown hair still in a ponytail, darker yellow bangs, and more red than Kaya at the tip of her ponytail but wearing the same clothes Kaya had worn appeared exactly where Kaya had stood.

"Man, I hate it in the Bracelet," the girl complained. "I get so cramped in there!"

"I get cramped in the Puzzle, too! And bored."

A little kid with long black hair came downstairs, along with a blonde-haired guy and a girl with brown hair.

"Wow, it's a party! How many people are here with you, Kaiba?" Harry asked Seto.

"I have no idea," he said simply. "And I wish the barking Chihuahua wasn't here for the ride…"

The blonde-haired guy growled at this remark.

"Chill out, Joey!" the girl with the brown hair, his sister Serenity, advised him.

"Oh, that mutt won't calm down unless you tie him down."

"Shut up, Kaiba!" the kid named Joey snapped at him.

"Quit egging it on, Kaiba. You know Joey will beat you someday," Yami cut in.

"I'd like to see him try. He couldn't beat me if his life depended on it."

"Yeah, Seto would beat him in a heartbeat!" the black-haired kid named Mokuba added.

"Maybe it would knock some sense into him if Joey beat him in a duel," Anèa said, teasing Seto.

"Yeah, and maybe make him less smart-alecky," Joey agreed.

"Too true, too true," Yami also agreed.

In a third flash of light, Kaya reappeared. "Definitely! Besides, Joey almost beat him! He's just scared," she teased.

"I AM NOT SCARED!" Seto yelled at her.

Kaya blew him a raspberry. "Are too!"

Harry had a very confused look on his face. 'Good heavens, this is a very strange bunch…' he thought.

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Ninjagirl: So, how do you like it? I'll update ASAP, I know it's suspenseful.

Yami Ninjagirl: Well, duh, you wrote it!

Ninjagirl: (stuffs a washcloth into her mouth) Please review!