A/N: This is my first fanfiction ever and it's a crossover to boot. Reviews and even flames are welcome, just tell me what's wrong that can be changed and I shall see what I can do. P.S. I'm also new to the entire having your own account thing; so if there are some technical erors, I'm sorry. I got the idea for this story along time ago;the entire Harry-is-a-girl-in-my-stroy is mostly due to his androginous personality in the early books (even in the last books he seems too 'neutral' as far as genders go). Or at least that's my opinion. And I always did wonder about him and Yusuke being siblings. So voila. P.P.S. I don't really trust spellcheck with the grammar part; so if my grammar ia faulty, just point it out and I'll do what I can to fix it, OK?

The sorting feast was as glamorous as any of the others in the past at Hogwarts School of Witchcraft and Wizardry. The decorations were impressive, very baroque; the night sky that was ever present in the Great Hall through a spell was as beautiful as it ever was; students occupied the four tables of their respective houses and the staff occupied their own table. Nervous, wet-behind-the-ears first years were awaiting for the moment that they would be sorted into their own House; which will, quite frankly, set their lifestyle at Hogwarts at a certain stereotype. Well, not completely.

Among the first years was a rather short girl with dark, emerald green hair; her eyes just a shade lighter of emerald green than her hair. The most distinguishing characteristic of this girl, other than her rather original hair and eye color, was a lightning bolt shaped scar right above her right eyebrow. Another thing that set this rather unusual young girl was how relaxed she looked compared to her peers. Her body language was composed, clearly stating that nothing can surprise, startle or scare her; unlike her soon-to-be-classmates that were feeling insecure as to what test they would have to go through to get sorted (in Ronald Weasley's case) or those that were afraid that they would not get sorted into the House that they wanted to get into/ their family wished for them to be in (in Draco Malfoy's case).

Who is this girl you ask? Who is the girl who is leaning against the nearest wall with her arms crossed and her lips set in an amused smirk? Who is the girl with the casual pose that seemed to differentiate herself from the others so soon in the school year? Why her name is Alyssa Jade Potter, the Girl-Who-Lived. But in demon and spiritual world she is known as Urameshi Aiji; sister of Urameshi Yuusuke, well known spirit detective and one hell of a powerful Toushin demon.

Still confused? What were you expecting? A female version of James Potter? A carbon copy of Lily Evans? Or maybe some of you were expecting a shy little girl with no knowledge of magic because of her magic-hating relatives? Well, to those that have asked the last question, she would have met that fate had her horrid relatives really taken her in.

10 years ago, Number Four Private Drive

It was a beautiful day in Little Winging Surrey: the sun was shining, the sky was an exquisite shade of blue that one could stand around all day and just look at it without getting bored. It is ironic how such an earth shattering decision can happen on a day such as this, but it has happened. On this very fine day, Albus Dumbledore's plan of Alyssa Potter living with her relatives literally went down the drain.

"VERNON!" a shriek with different pitches resounded throughout the house in Number 4 Private Drive. "Goodness, Petunia, what is it; you nearly woke up the neighbours!" responded the aforementioned Vernon, who quite frankly needed to see a doctor so that they could operate his stomach to make it smaller ASAP. You'd think that it was the husband who was pregnant instead of the wife considering how much of a fat pig the man was (no offence was meant to the poor pigs) and how much the wife, Petunia, resembled someone with anorexia. Their son, Dudley, was asleep in his very own nursery; surprisingly the babe was able to sleep through his mother's desperate cry but considering the fact that the woman was a drama-queen and a prima donna wannabe I'd say that he had better get used to it.

"Vernon come quick …the baby, my…freak of a sister…" and so we are able to see how the Petunia Dursley specie reacts to something: starts to babble and stammer to the point that she is incomprehensible while she wails for her husband to fix the problem for her like a spoiled brat.

"What is it, woman? What could be so-" Dursley was cut off by his wife as she shoved a piece of paper to his face. Beady eyes read the message that the ever crafty (but not enough in this case) Headmaster of Hogwarts had written. Soon Dursley paled and then started to turn into an interesting and not to mention ugly shade of purple/red. And now we shall conclude our Dursley observation class by seeing their prejudiced reactions towards their niece.

"Who do those freaks think they are that they can just drop one of their own on OUR doorstep! Petunia, hand me the child, I'll take her with me to Japan and leave her in an orphanage there. There won't be any connection between us if I can help it" was Vernon Dursley's reply as he took the baby girl and made his way to the car.

"But Vernon, not that I don't agree with your decision, but what do you think that those freaks are going to do to us once they find out that we didn't do what they wanted?" asked a horrified Mrs. Dursley. You ever notice that their vocabulary for 'insulting' witches and wizards is rather childish and somewhat repetitive? Oh well, must be from lack of education or, to be precise, lack of attention to said education.

"They can't do anything to us since we don't have to take her in, besides living in a different country that hopefully doesn't have any freaks will probably stamp the freakishness out of the girl so it's all for the best" anything else that Mrs. Dursley wanted to say was left untold because her husband just left to the airport with Alyssa.

1 day later (or 2, depending on your geographical point of vue)

Vernon didn't understand a word of Japanese, his guide and interpreter weren't to meet him until the meeting so he had to make do with what he had. Taking a taxi to the nearest hotel in Tokyo (while making a complete fool of himself by using sign language, or rather, his interpretation of sign language); Dursley pretty much ended up in the middle of nowhere in Tokyo. Without the linguistic capacity to make himself understood in the foreign city, he just dumped the infant in the nearest alley while (what he thought was) looking inconspicuous. Luckily for him, the current time in Tokyo was right when people where rushing to go to work (also known in the working world as Rush Hour) and said people could not be bothered by the actions of the weird foreigner.

Or at least the adults had that reaction. A young boy of six years had seen what the man had done, though he did not know that the man had dumped into the alley. Unknown to the dark green haired child, his curiosity will add another member to his family that he will treasure for the rest of his life. And most importantly, he will forever remember the comical face that his drunken mother had made and how she had miraculously sobered up when he said the words: "'Ka-san, can I keep her?"

Present Time at the Hogwarts Welcoming Feast

Alyssa's smirk turned into a wistful smile as she remembered all of the crazy yet fun things that she did in her life. From becoming the most feared student in her primary school both due to her brother's reputation and to her own street fights with some thugs two to three years younger than her brother, some of them older siblings of some of her frightened classmates. Yusuke getting run over a car to save some random kid's life and the utter agony that she had felt when she thought that her beloved brother, the one who really understood her and always supported her in every way, was gone for good. Beating Keiko in the race to 'kiss Yusuke back to life' by a minute (and thank goodness for that, sometimes Aiji has nightmares about what would happen had she failed to reach her brother in time). Getting suspicious about what Yusuke was doing when he received his first mission and almost suffering the same fate as Keiko by the Shadow Sword (who was saved but got her memories about the event erased while Aiji still remembered everything due to her pleas to at least know what is going to happen to her brother now that he has to fight demons as a profession).

Though Yusuke's intentions were to keep her, Keiko, their mother Atsuko and to some extent Kuwabara safe; Aiji had secretly followed him on his second mission to Genkai's temple. Suffice to say that Aiji is still shocked to this day that her paper had turned out red. Nearly getting killed due to blood loss (courtesy of Rando) and having Yusuke give her some of his blood to help her survive (which explains why she is a Toushin demon). Not to mention that from that point on she had become a permanent part of the Reikai Tantei team. From the Four Saint Beasts to the demon tournament she and Yusuke (as well as the rest of the team) were inseparable. This would actually be the first time that she was going to be independent of her brother or any of their friends (because his friends are her friends; like good siblings, they share).

To be honest, she only came to Hogwarts out of respect for her deceased parents; after all they probably had plans for her to go to Hogwarts, marry a nice wizard and take a wizard job while raising children. But since she is a half-assed worker when it comes to 'normal' work like her brother; she is just going to do the minimum and just go to the Wizarding School. To become an icon of justice and victory of the wizarding world? The same world that had abandoned her to her fate on the Dursley's doorstep? Hell no. Killing Voldemort and his cronies just because the mass of the Wizarding World wishes it? Are you kidding me?

As you can see, despite the fact that she had endured the demon tournament and, before that, suffered the same training as Yusuke that Raizen (or as they both call him now: father) had given them; she and her brother are still the same authority-hating rebels that they were before Yusuke's first death.

Yeah, killing the bastard to avenge her parents seemed like a good reason to Aiji; especially since, thanks to Hiei's Jagan, she had been able to see how her life as a baby with her parents had been. From the memories that she had, James and Lily Potter could have been really good parents. Sadly they never got the chance; and even if it sounds cruel to say it, Raizen and Atsuko were more Aiji's parents then they were due to how Atsuko is a constant in her life and how Raizen had helped her and Yusuke out before death had taken him. And even then, Raizen had left kicking and screaming like the stubborn demon lord that he was. Aiji still misses him, as does Yusuke, but life goes on and with their friends around it's hard to stay depressed all the time.

But the real reason that she's here that has anything to do with Voldemort is the simple fact that Reikai is a teensy bit miffed at the bastard (literally) for cheating death in a rather crude and unfair way; I mean, what kind of sick, snake-raping pedophile actually thinks that dividing your soul in seven pieces to attain semi-immortality is better than kicking bucket meekly and quietly like everyone else does? Voldemort or Tom Marvolo Riddle if we want to get technical; personally, Aiji is going to always call him that just to piss the wanker off and hope that due to the high blood pressure he will get by being enraged, Tommy-boy would die by popping many blood vessels in his head and die of blood loss because the strength of the vessel explosions will tear the skin on his head and cause him to lose blood.

"Children, it is time for you to be sorted", McGonagall; 'Professor McGonagall', Aiji (or Alyssa in this situation) reminded herself 'there's no need to piss her off so soon; especially now that I'm in a boarding school and can't just skip detentions as easily as I could've back home'; interrupted her trip down the memory lane. Oh well, I guess it's show time for Urameshi Aiji, I mean Alyssa Potter.

Seems that while Aiji was thinking; the sorting hat had done its annual song pre-sorting and everyone was either clapping (the veteran students by at least a year), sighing in relief (the first years that were fed some cockamamie tale of having to fight a Mountain Troll to be sorted like Ronald Weasley) or awaiting their destiny at Hogwarts.

"When I call your name, step into the stool and place the hat on to be sorted", then with a clear voice McGonagall began to read the humongous list of names. Aiji began to wonder if that poor woman was getting paid well for this; I mean come on, if this is what she has to do all night on the first day of school every year then it's no wonder she has a ten foot spiked pole up her ass.

"Potter, Alyssa", now at that Aiji had to frown. Really, she tells them that she doesn't want to use her English name and what do they do, they use said name. Stingy fuckers, they probably did the same thing to her request as they do with their paperwork: wipe their asses with it and then shove it where the sun doesn't shine. And of course who can forget the not-so discreet whispers about her as she walks to the stool. Placing the hat on her head, she waits for the long conversation (don't you just love telepathy?) that she knows she is going to have.

"Well now isn't this interesting" said the sorting hat in Aiji's mind, "of all the things that I've seen in my career; I've never seen such a complex life, you're even making the Malfoy kid's life seem rather boring compared to yours"

"Was that a compliment?" responded an amused Aiji

"Coming from me? Yes. Do you know how boring it is to see the same scenario over and over again in thousands of first years' minds? Honestly, I was beginning to lose hope when I could already predict which house some children will go to just by hearing their bloody family name"

"Sad, ain't it? Well, the dried up old mummy is looking at me funny. I don't know how much power he has nor what his legal rights as the Headmaster of the school allow him to do; but I kind of want to keep this conversation private, thank you very much"

"As the Lady of Toranin wishes" at this Aiji had to hold back a snort "Even though Lord Enki is the King of the Makai, the lands of Toranin belong to you and your brother by blood alone"

"Blood doesn't mean anything" debated Aiji "Granted, I'll admit that we're both incredible fighters but we're not politicians like Otou-sama was. How he was able to be both at the same time is beyond me"

"Yet you were both wise and mature enough to admit it and do something fair about it; let me assure you that had anyone else been in the same situation as the both of you, they would have taken the power even if their actions meant the downfall of their country. That of itself speaks of both of your remarkable leadership skills"

"Alright, you win. Now let's get this sorting over with before the mummy grows even more wrinkles. And any information about me had better be kept under lock and key"

"Don't worry little Lady, your secrets are safe with me. Even Albus won't be able to get anything out of me"
"Good, so where do I go?"
"Considering your past, thuggish yet kind personality and how much you want to rebel against the Wizarding World for their abandonment; I'd say that Slytherin would be a good choice."

"You, I like. And the best part is that we get front row seats to funniest faces that everyone in the school are going to make"

"Indeed, do me a favor and spice things up in this boring old castle will you?"

"Do you even have to ask?"

"SLYTHERIN!"

A/N: Should I continue? Or should I leave it?