Please read the notes at the end of the chapter before you get offended over the treatment of any of the Hogwarts Hauses in this story. Thank you.
*

Kozuki Momonosuke weighted the wand in his little hand. A light smile appeared on Rayleigh's face at the gesture.

«Do you like it, young boy? It is very rare for me to match a wizard with a cherry wand.»

The child raised his marvelled eyes on the wand-maker.

«Really?»

«Sure. In Mahoutokoro, the Japanese school of wizardry, students with cherry wands have special prestige. The Kozuki family is from there, isn't it? This wand probably felt it and chose you.»

A pleased grin started to form on Momonosuke's lips as his eyes glued back to the wand and his grip grew firmer.

«So this is my wand...»

«You can trust Master Rayleigh, Momonosuke.» you said confidently, patting his head «He's the best wand-maker of the country, maybe of the continent. Every witch and wizard of our era was matched by him!»

«Now, Y/n, you're too generous.»

Rayleigh waved away the compliment with a light movement of his hand.

«Thank you, Rayleigh-dono!» Momonosuke said solemnly, bowing in front of the old man.

«You're welcome, young wizard.»

The child couldn't help but smile back at the new title he just acquired.

«Now let's get going!» you chimed, clapping your hands to bring him back to the real word «We have tons of shopping to do, and the school starts tomorrow!»

«How are things in Hogwarts? Lively as ever?» Rayleigh asked, while he put back all the wands which failed to match with Momonosuke.

«I guess.» you shrugged «I mean, if you don't consider Luffy and his Gryffindor crew saving the magic world every other year, things are pretty smooth.»

The old wizard chuckled.

«That Luffy! I am really curious to see what will happen this year.»

His sentence made you quirk an eyebrow.

«What do you mean?»

He gave you an enigmatic look, but his gaze went back to his business soon enough.

«Nothing special, just saying.»

You stared at his back in suspicion, but Momonosuke tugged your sleeve, claiming your attention.

«Come on, Y/n-senpai! We need to go!»

«Sure.»

You both gave Rayleigh one last greet and proceeded along Diagon Alley to purchase everything you needed for Momonosuke first and your sixth year at Hogwarts.

The day passed quickly with all the shopping. Momonosuke looked enthusiast about his new adventure, and his happiness made you glad for accepting to escort him through his supplies.

Kin'emon was more than willing to go with him but he eventually thought it was better for him to be with someone who was less of a parent and more of a peer. Since you also had to buy your stuff last minute (like every year), he asked you.

It was refreshing to go through first day's eve all over again.

Last stop happened to be Madame Malkin's Robes for all Occasions.

While trying a neutral uniform, Momonosuke expression furrowed for the first time.

«What's the issue?» you asked, looking at him through the mirror.

Before he could answer, a young blond girl jumped in front of the mirror beside him, with a uniform far too long for her and an unusual cat hanging from her shoulder.

«Graaaaaanny! This robe is super!!»

«Slow down, Chimney!»

But the old woman was laughing while saying that. She also seemed completely drunk. You recognized her as the train conductor of the Hogwarts Express.

«Oh, what about you?!» the girl uttered, turning to Momonosuke. He took a little step back, hit by her over-enthusiasm.

«Grandma, look! He's also coming to Hogwarts tomorrow!! Which House do you want to be sorted in? I want to go to Gryffindor! The coolest wizards come from that one!»

«I...»

«But Ravenclaw is also super cool! Do you think I can go to Ravenclaw, granny?»

The old woman let out a coarse laugh.

«I think you're not smart enough, my little Chimney!»

To your surprise, the girl grinned at that.

These two sure are strange.

Once out of the shop, both of you carrying half a dozen shopping bags, you noticed Momonosuke's slight frown was back on his face.

«Hey, what's wrong, Momo? I can tell something is bothering you.»

«It's just...» he pouted «I keep thinking about the Sorting Ceremony.»

«Haaa, I see. Everybody is stressed about it. It sure is a very important moment in the life of a wizard.»

The boy raised his head at you, even more worried.

«It is, right?»

«Yes, the House will become a constant of your life. Even after Hogwarts, you're sorta always bound to the people of your House... but nothing to be worried about!»

You tried to offer him your most reassuring smile.

«It's okay! Every House has his pros and cons, and you should be proud of it anyway.»

A grimace entered his features.

«It's easy for you to say! No one mocks a Slytherin!»

You shrugged.

«Maybe not, but they sure talk behind our backs. We have a long history of Dark Arts and racism against the muggle-born.»

«I just...»

«What are you worried about anyway? Is there a particular House you'd like to join?»

The Kozuki was a high-class wizard family, but they didn't belong to a particular House, like sometimes happened in ancient families. Their members were scattered among all four.

Momonosuke looked a little embarrassed by your question, and he averted his eyes from you.

«I just... don't wanna end up in Hufflepuff.» he muttered, his voice fading.

You blinked and, despite your effort to stay serious, couldn't help the laugh that erupted from your mouth. His eyes widened and the boy blushed heavily.

«I'm sorry, I'm sorry!» you said through the giggles «It's just always the same story! No one wants to end up in Hufflepuff! But let me tell you something about it.»

Finally serious again, you wiped away a little tear from the corner of your eye.

«Everybody thinks weaklings belong to Hufflepuff, but you know what? One of the worst bullies of the school, right now, is from there.»

Momonosuke seemed puzzled by the statement.

«Is he?»

«Yes! His name is Edward Weevil, and while sure he's dumb, I can assure no one would doubt his strength. Try to avoid him, by the way.»

He nodded and you tapped your chin.

«Then, let me think... oh, the head teacher of Hufflepuff, Prof. Jinbe, is certainly a badass! He will teach you flying. And isn't one of your guardians, O-Kiku, from Hufflepuff as well?»

You kept talking about the most impressive people you knew from the House until you got back to the Leaky Cauldron, and you managed to cheer him up a little.

Finally the morning after came, and you confidently entered the platform 9 ¾ with your luggage. Tokoyami, your raven, cawed from your shoulder like every year.

«Aw, come on, don't start complaining.»

He lifted his beak in annoyance, before taking his leave to reach Hogwarts on his own.

«Okaaay, see ya.»

«Y/n!»

Perona and Ginrummy were waving at you in the crowd of students and families, both wrapped in their Slytherin uniform. The Hogwarts Express was already there.

«Hi girls!» you greeted, reaching them.

«We were waiting for you. You're always late!» Perona pouted.

You huffed and pushed her towards the train.

«Get in, pinkie!»

Ginrummy sighed, used to your behaviour.

You quickly searched the crowd with your eyes, trying to catch Momonosuke or Kin'emon, but there were too many people to spot them. Some of them were known faces, and you threw a few "hi" here and there, before following your friends inside.

«Let's go find a quiet compartment, shall we?» Ginrummy asked, proceeding along the narrow corridor.

Perona was glancing at the various glasses.

«Because the miss here was so late, they're all already occupied!»

One of the compartments sprang open at your passage, and a blond guy in Gryffindor colours jumped in front of you, bending his knee.

«What a beautiful trio of princesses! Please, feel free to join us!»

The pinkette lifted her chin in disgust.

«Get away, you Gryffindor weirdo!»

You tugged her aside.

«Don't mind her, Sanji! She's on her period.»

«WHAT?! You bitch.»

You ignored her, smiling to the blond. Luffy peeped out from the same compartment, his unknotted red and gold tie hanging from his neck.

«Hey guys! Nice to see you again, shihihihihihi!»

«Luffy, come back inside and let me finish with your uniform!» Nami yelled, grasping him from the collar and pulling him back.

«You come in too, stupid Casanova, or we'll leave you out.» Zoro said to the blonde, ready to close the door. Sanji sprang to his feet to face him.

«What did you say, you idiotic moron?»

Ginrummy took the chance to push both you and Perona forward.

The second obstacle was dodging the series of charms that were flying around, since Sabo and Ace apparently thought it was a good idea to start a duel in the middle of the train. The children of the first year were all running around in terror.

Perona massaged her temples with her long fingers.

«These stupid Gryffindors will be the death of me.» she cried.

«Not just of you.»

«Girls, I spotted an empty compartment!» Ginrummy called.

You and Perona rushed through, but not quickly enough.

Tattooed fingers landed on the door knob before you could reach it.

«Trafalgar!» Perona shrilled, already in fighting mood «Move, we were here first!»

The Ravenclaw guy briefly glanced at you.

«Doesn't look like it.» he quietly observed with his low voice.

Three other Ravenclaw were surrounding him. You recognized Penguin, Shachi and Bepo. Those three were following Law around since the first year.

You stepped in, ready to back Perona up, when an imposing figure joined the knot you formed in the corridor.

«Are there any problems, girls? Is the creep bothering you?»

Uh-oh.

Sparks gushed in the air when Law's gaze met the redhead's amber eyes.

A little sigh of exasperation escaped your mouth.

Already?!

Perona and Ginrummy seemed pleased by the entrance of your housemate.

«Eustass Kid.» Law crossed his arms on his chest «You look even paler than last year. I bet vampire activity is stressing in summer, isn't it?»

Kid's scowl grew threatening as his hand reached for the wand. But Law was prepared, and he mirrored the gesture.

«Please, you two!» you shouted, throwing yourself in between «Children are watching!»

They both turned to the little group of first year students who gathered nearby, eyes widened in dread.

You put one hand on each of their chest, applying a little pressure to make them back off.

«I think you can wait till the Duelling Club starts again!»

The two of them kept glaring at each other, but at least their arms relaxed.

«Fine!» Kid scoffed «Just because a fellow Slytherin is asking.»

You smirked at him.

«Come on girls, I think we can find another compartment... we don't wanna leave some poor Ravenclaw homeless, you know birds need to feel safe.»

Perona puffed her cheeks at your words, but Kid and Ginrummy sneered.

«Hey, you...!»

Penguin looked insulted, but Law just opened the compartment and made his way in.

Kid pointed out that the compartment beside his could still be empty, so you followed him along the corridor.

«How was your summer?» you cheerfully asked.

The moment when everyone was reunited again on the train was your favourite every year. Eustass Kid was considered one of the worst bullies in the school, but he seldomly burst against someone of his own House, and you were one of the few people who got along pretty well with him.

«It was okay, nothing special. What about you?»

You shrugged.

«Same. I spent most of my time by the sea in Southern Europe.»

«Right. You and your sea.»

You both smirked.

The compartment was indeed empty, so you briefly greeted Killer, Heat and Wire, and finally sat with the girls.

«Y/n...»

You blinked at their malicious grins.

«What?»

«We saw that.»

«Saw what?»

«Oh, c'mon!»

Ginrummy leaned on her seat.

«You and Kid!»

You rolled your eyes.

«Can we please get over this already? We have been in the same House for five years, we were just chatting!»

«Exactly. Except Eustass Kid doesn't chat with girls.» Perona commented, while Ginrummy nodded.

«Yeah. You're the only one he talks to, haven't you noticed?»

«You two are crazy.» you huffed, tapping your temple with your index finger.

The travel proceeded quietly. You talked about your summer, the projects you had for the year and some other frivolous stuff.

After a few hours, someone knocked lightly on your glass.

You had actually fallen asleep (as you did more or less every time you were left unwatched), so it was Ginrummy to open the door as Perona shook you awake.

«Hello girls.»

You rubbed your face.

«Here.»

Someone handed you a hot thermos and a little cup.

«C-coffee?»

«Let me!»

Ginrummy took it for you and poured the hot liquid in the cup.

«I figured you'll need it.»

You squinted at the newcomer.

«Reiju?»

The Ravenclaw girl sat in front of you, extending her long legs on the seat beside.

«It's nice to see you again, you troublemaker.»

Perona curled her lips.

«You have to stop spoiling her.»

«No, don't stop! Don't ever stop!» you cried in happiness, sipping at your coffee. Reiju chuckled.

«How was your summer?» Ginrummy asked.

The pinkette shrugged.

«Stressing. Our father forced us to train everyday, as always.»

She didn't look stressed at all, to be honest. She was beautiful and perfectly composed.

«Anyway, I came to talk about something.»

Reiju smiled enigmatically.

«What is it?»

«My father was called by the Ministry of Magic quite a lot of times this summer.» she started «He wouldn't speak in front of us, but I heard him say "Hogwarts" a couple of times.»

You exchanged puzzled glances with the others.

«I don't have more information right now, but something big seems to be coming down the pike.»

«And why did you come to tell us?» Ginrummy asked, frowning «Of course we're friends, but what if it involves a competition between the Houses or something?»

«It's true! You Ravenclaw would be advantaged by being the only one to know!» Perona agreed.

Reiju's smile didn't quiver a bit.

«You know I'm not so rigid about this whole House thing. I've got three brothers in Slytherin and one in Gryffindor, after all. I've already informed Sanji, and I guess Ichiji sensed something as well.»

You couldn't help but chuckle.

«That leaves just Hufflepuff out.»

They all sneered.

«Anyway, this is not the only reason.» Reiju continued, crossing her legs «I also wanted this little troublemaker to know. It's fun when you're involved, and somehow you're always involved.»

You blushed lightly, deepening your face in your green and silver scarf.

It was true.

Your first year, you were the only one in Moaning Myrtle's bathroom when it exploded and the revolution of the ghosts began, and this leaded to a series of quarrels where you were the first suspect. The second year was the one of the Trolls' attack, but since you were asleep when it started, you just found yourself behind the enemy line with Zoro (who got lost). During the third year, Edward Weevil broke Prof. Mihawk's pensieve, throwing half of the castle in a living gothic nightmare, and since you were one of the few students of Oneiricy and Occlumancy, you were called to help and save the day. On your fourth year, you overheard Prof. Eneru secretly talking to his assistants of his plan to invade the school and steal the Lost Arc, so he tried to kill you until Prof. Lucci stepped in. The fifth year was more or less fine, you just got almost eaten by the Acromantulas during detention in the Forbidden Forest, but you would call it a success.

«No Reiju, I'm done with that crap.» you solemnly said «This year I just want to focus on class and Quiddich.»

She lifted an eyebrow.

«Sure.»

Of course you had never been so wrong in your life. But you still couldn't know it.

It felt good to go back in the Great Hall and see so many known faces.

Luffy's Gryffindor group was the loudest, as always. Ace and Sabo could compete though.

On Hufflepuff's table, Edward Weevil sat in the centre, coarsely eating, spilling food on his mates, although no one dared to question his manners. Koby looked like he wanted to protest, but Helmeppo and Rebecca held him back.

Ravenclaw's table was the quietest, with most of the girls sighing for Law, and most of the boys sighing for Reiju. Hawkins was already bent on his cards, with Apoo taunting him.

You sat on Slytherin's table between your friends and Kid's gang, while the children entered the hall escorted by Franky.

They looked terrified.

Gekko Moria, Slytherin's ghost, flew through them, scaring them even more.

«That asshole.» Cavendish commented, taking a seat in front of you.

You spotted Momonosuke and tried to wave at him, but the boy was far too stressed to notice you.

«Who's the guy beside Prof. Fushichō?» Dellinger asked curiously.

You turned to the professors.

There was a tall dark-haired man, sat between Prof. Fushichō and Prof. Akagami.

«Things start to get suspicious!» Perona uttered in delight.

The Sorting Ceremony was exciting, like every year. You yelped when Momonosuke was sorted into Slytherin and happily joined you on the table near Sugar, another new acquisition of the House. Chimney was sorted into Gryffindor.

Although he was rather distant from you, you winked at the boy and he answered with a relieved smile.

After dinner, one of the two Prof. Donquixote clapped his hands and all the leftovers disappeared. Also, one Gryffindor's flag was set on fire, so the other Prof. Donquixote clicked his fingers with a huff, extinguishing the flames.

Prof. Edward, or Principal Whitebeard as everybody called him, stood in all his impressive height.

«My students!» his ponderous voice thundered «Welcome to another year in Hogwarts! I hope this new beginning finds you well and full of energy!»

A lot of students shouted and clapped in reply, and the principal smiled proudly.

«First, the routine stuff: you will find your timetable in the common room of your houses, extracurricular activities will be open to sign up for the first week and Quiddich tournament starts on October 31st.»

«This year we're going to nail it!» Kid hissed to your side. You nodded resolute.

Whitebeard cleared his voice.

«Now, before saying goodnight, I have a very important announcement to make. I ask you to stay quiet and listen carefully until the end.»

He glared towards Gryffindor's table while saying so.

The silence fell on the Great Hall. It was nothing like Whitebeard to be so serious on the first day.

You felt a strange tension and grabbed Perona's sleeve. She grasped you back.

«This year would be very special. We worked hard to keep it a secret till the end, but from tomorrow the news will be covered and everyone will now.»

Now even Luffy was silent. All the students were exchanging glances with each other, confused.

You recalled Reiju's words.

Something big seems to be coming down the pike.

«The Magic Community have gathered, this summer. It has been a lot of years since the last Dark Lord was defeated in the Potter age, and we are now beneficing of a long period of peace. That's why we wanted to celebrate and tighten our bounds with the international community. And this involves the students of Hogwarts as protagonists.»

Everyone held their breath.

«I bet you've heard about the Triwizard Tournament.»

There was still a moment of silence, then the Great Hall basically exploded.

Most of the students were shouting in excitement, some other froze for the shock.

Your jaw nearly dropped on the table as Perona gasped and Kid laughed hard, patting Killer's shoulder.

It took several minutes for the professors to regain a trace of silence, and it was just when Prof. Dracule stood with a dark expression that most of the guys sat back on their seats.

«This is the reaction I wanted!» Whitebeard roared with a grin «But it's also true that the Tournament was linked to some horrible events in the past. We want to renew its name and make it a celebration for the whole magic world! So there has been some changes. First of all, let me introduce the person who's responsible for the organization in Hogwarts, Mr. Aokiji!»

The tall man stood with a sleepy expression on his face. He rubbed the back of his head and bowed lightly.

«Nice to meet you, young witches and wizards. I'm glad to see so many promising wands. Let me explain how the tournament will take place. There will be two phases: a local one, to select the champions for each school of Witchcraft, and the final one, where the said champions will compete. The first will take place during the year, while the second will be in summer, at an international level.»

Ginrummy leaned towards you.

«This means we'll have to compete against each other!»

«I advice you to focus on the first phase, which will be covered by the news of all country, and will consist in three dangerous tasks.» Aokiji said.

He extracted his wand and pointed it to a pedestal in front of the teachers' table.

There was a blue lamp, then the Goblet of Fire materialized.

A lot of students were startled at its sight.

«As you probably know,» the wizard continued «this is the Goblet of Fire. It will select the students for the first tournament, and its choice is an Unbreakable Vow, so I strongly advice you to think about it before submitting your name.»

As to confirm his words, the goblet erupted some blue sparks.

«Now, about the selection.» Aokiji yawned «Only students from the 5th, 6th and 7th year can enter the competition. The Goblet has been instructed not to accept any younger name. Another important modification: eight students will be selected for the first phase. One wizard and one witch for every House. Depending on the task, you could be asked to compete alone or as a team, but not necessarily with your housemate. It's all about boundaries, after all.»

The students remained silent, trying to absorb all the information.

«At the end, a champion and a reserve will be selected. As for the second phase, we'll talk about it in spring. Thanks for your attention.»

Aokiji sat back, and Whitebeard laughed at everyone's lost expression.

«Guarararara, you should see your faces! If you want to put your name in the Goblet of Fire, you have time until October 30th. On Halloween, after dinner, we will discover who is going to compete. It's all, boys and girls. I wish you a good night and don't forget to focus on your study!»

*

Brief intro:

This story takes the characters of One Piece and places them into Harry Potter's world, particularly at Hogwarts. The protagonist is a female!reader currently in her sixth year and there will be no OCs.

Some Hauses will be verbally slandered by characters of the story. This doesn't reflect my personal views, it is done to make this world more believable and for plot's sake. Please don't get offended over it.
(Honestly, characters in the story are even being much nicer than JK Rowling herself ever was with certain Hauses)

Just a few more things to keep in mind as you read:

- the age of some characters has been adjusted to fit them in the school

- since we don't know many last names in OP, some are made up. I tried to keep them clear, but feel free to ask if you don't recognise someone

- Mikita is the canon name for Miss Valentine

- I do my best to keep the characters IC (so please let me know if something feels off), but there will be some slight OOC for a few minor characters (for example Weevil is depicted more malicious than he actually is in the manga, for plot's sake)

If you insult me or any other reader, or leave disgusting comments, you'll be muted immediately.
This applies to any of my stories.

Thank you for reading and I hope you enjoy!