A/N: Finally uploaded this here now that I have a cover art for it. Arc1 of this story has already been written and posted on my tumblr&pixiv, but I'll be editing as much as I could throughout this month so I can upload the 'final version' here. Of course, any feedbacks (what you like and what you don't like) are still appreciated, so I can improve!

The main ship will be YoshiMaru, with DiaRiko, KanaMari and ChikaYou as the other ships. This story will be told mostly through Yoshiko's POV, about her adventures of her first year in Hogwarts and her developing relationships with the other characters. So… the other ships will be shown through Yoshiko's eyes - you'll have to look for the subtle hints for the others.

There's a note about school terms at the end of this chapter. Sorry for the long rambling but I promise it's a one-time thing.

Disclaimer: I do not own Love Live Sunshine! Or Harry Potter franchise.

Words: 2,963

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Chapter 1 – Here Comes the Fallen Angel

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What the heck is platform 9 ¾? There's nothing in between platform 9 and platform 10 except this ugly stretch of wall. What, do they just expect me to teleport myself into this magical dimension or something?

Yoshiko Tsushima blinks as realization strikes her. She coughs quietly and straightens herself, mustering a look of utter contemplation.

Think, Yohane. Of course you're supposed to magic yourself. You're going to a School of Wizardry and Witchcraft after all. There must be a catch though, because a minor such as yourself cannot perform magic. Think, Yohane, think! Don't let mere mortals' silly tricks halt your path to world domination!

Encouraged by her inner pep talk, Yoshiko tightens her grip on her pitifully small suitcase and takes a resolute step towards the wall to inspect it better. Pureblood students could have just asked their parents on how to get to the train, but she grew up in an ordinary Muggle orphanage and knew very little about the Magical world.

Ah, the day she received the letter is still vivid in her mind! She's always known she's destined for greatness! She is so ready to leave behind her past and be reborn as the fallen angel she's meant to be. None of them appreciate her powers anyway, deeming her as a weirdo or freak.

It can't be helped. Solitude is part of the package of being Yohane, and she's long accepted that.

Scowling, Yoshiko shakes off unwanted memories and shuffles closer to the wall. She tentatively touches the edge, feeling the cold roughness of the brick under her palm. After several moments of prodding, she concludes that there's nothing special about it. Is it because it's only thirty minutes until departure? It can't be helped that she got here late because she was held up in traffic. Also, the bus she took actually had a change of route without her knowing, and after getting onto the right bus, it had a minor breakdown too.

Such is the fate of a fallen angel. Lady Luck will never smile upon me. She leans back dramatically and dabs at her eyes. Then, realizing that she's slipped back into her other mode, she glances around in paranoia. Fortunately, people are too absorbed in their own world in the bustling station to notice her.

Or the petite brunette over there for that matter.

The bespectacled girl is pushing a cart full of huge suitcases and trying to make her way through the crowd. Due to her tiny stature, people either didn't see her or they knock into her several times, causing her to stumble and struggle with her luggage. Her progress is halted every few steps, making it rather agonizing to watch.

Unable to take it anymore, Yoshiko holds up her hand and assertively cuts her path through the crowd. "Coming through! Excuse me! Sorry about that sir. Pardon! Hey you!"

The smaller girl blinks at her in confusion but allows her to help push the cart towards the wall, where there's breathing space. As soon as they reach safety, Yoshiko practically collapses against the mountain of suitcases.

"Geez, what the heck are in these anyway? They're so heavy!" Huffing, she stares at her new companion in an appraising manner. The short brunette appears to be around her age, but those thick, dark-framed glasses makes her look like a tiny grandma especially with the laid-back aura she has.

"Oh~ They're filled with my books zura- ahem, they're my books." Her relaxed tone of speaking and odd dialect only add to that image. "Thank you for your help though! I'm really grateful-" She trails off and suddenly tiptoes so they're almost eye-to-eye.

"W-what?"

"Rock, Paper-"

Like a reflex, Yoshiko holds out her hand with the middle finger and pinkie curled, which is her special version of scissors. The brunette's expression lights up and she takes off her glasses, hopping a bit in excitement.

"It's really you! You're Yoshiko-chan, aren't you?"

"It's Yohane!" Again, she automatically reacts but that only makes the girl even happier.

"Yup, you're definitely Yoshiko-chan zura~!"

Frowning, she looks at the smiling brunette up and down, trying to locate her in her memories. She's cute and rather pretty for a mere mortal. Her eyes are nice too, behind those ugly glasses. Not bad not bad, but still…

"Who are you?"

The moment she says that, the girl looks so crestfallen that she regrets being so blunt.

"Hanamaru Kunikida, doesn't that ring a bell zura?"

Yoshiko swallows hard under her hopeful gaze. "Nope. Er, sorry."

"I see," Hanamaru shakes her head and smiles warmly at her again. "It's fine. Nice meeting you and thanks again for your help, Yoshiko-chan."

"Like I said, it's Yohane! Yohane Tsushima!" Relieved that the awkward moment has passed, she strikes a pose and whips out a black feather from her pocket. Her voice turns husky as she affixes the accessory into her side bun. "No need to thank me, little demon, that was nothing. All mortals will eventually bow to my amazing power as the strongest Witch-oommff!"

"We're not supposed to break the Statue of Secrecy zura," Hanamaru has clamped her hands over her mouth, which probably looks comical considering their height difference.

Flustered, Yoshiko takes a step back and huffs. "I know that! That's why we need to get to this stupid platform so I can unleash my power!" She pauses as a thought just occurs to her. "…you are going the same place as me, right?"

Well, Hanamaru could have packed so much for a long trip abroad or something but, instincts tell her otherwise.

"Oh, you mean Platform 9 ¾ zura? Do you know how to get there zura?"

"…No. Do you?"

"No, I tried asking the staff but they only give me a weird look," the brunette glances around them nervously. She pushes her glasses against the bridge of her nose and joins the taller girl in staring blankly at the wall. "Are we supposed to do something special? Is there a password zura?"

"I don't think so. We're not supposed to do mag- ahem, do special things because there are still Muggles around. There must be a way."

"What do we do if we miss the train, Yoshiko-chan? What do we do zura?!"

"Like. I. Said. It's Yo. Ha. Ne!" She sends her companion the darkest glare she could muster. "Take heed and learn, Zuramaru." There, a fitting nickname! You're so brilliant, oh great Yohane.

Instead of the reaction she wants, Hanamaru only beams up at her as if she were praised. "Hai hai, Yoshiko-chan~"

"Don't patronize me!"

Even then, Yoshiko finds herself unable to become truly upset at Hanamaru. Perhaps it is her soothing smile, or it could be due to the rule of 'misery loves company', but she doesn't feel as anxious now that she's not the only one trapped outside of the mysterious platform 9 ¾.

"Mew~"

Blinking, she looks down and discovers a well-groomed cat rubbing itself against her ankle. Its cream coat is really more gold than any cats she's ever encountered, but what stands out the most is its tail, which resembles a horse's tail more than the usual fluffy feline tail. The cat meows again and swishes its tail in a friendly manner, prompting Hanamaru to crouch down and coo over it. It lightly touches its nose with her hand before resuming its scent-marking against Yoshiko's leg.

"Hehe, it seems to like you zura!"

"Duh? No one can resist Yohane-sama's charm," Yoshiko tilts her chin up with utter confidence, though in reality she has never understood why cats like her. If she goes to a park, wild cats or even some house cats would gather around her and mewl for her attention. The first time it happened, she thought she had the power to summon minions but as time goes on, it becomes obvious that she has no control over these capricious felines. They just come and go as they wish. She feels used sometimes, truth be told.

The golden cat swishes its lustrous tail one more time before strolling past them towards the wall. After a few steps, it stops and turns to look at them with its bright chartreuse eyes.

"I think it wants us to follow it," Hanamaru gasps when the cat nods and continues its leisurely stride.

Then it walks straight through the wall! What sort of sorcery is this? Wait, it IS supposed to be magic!

"It's magic zura~! Ma-mmnff!"

"Hey, you're the one who told me to keep it down!" Yoshiko hastily covers the brunette's mouth and nose, though she is also in disbelief. "I don't understand, I touched the wall earlier and it was solid!"

"Mmnnfff!"

"Oh sorry," she tries to ignore the warm sensation on her palm and tries to appear unfazed while Hanamaru gasps for air. "Anyway, I guess either something happened or we just have to do it instead of poking around. Come on, steady your stuff and let's go, Zuramaru!"

Together, they give their surroundings one last glance before pushing the heavy cart towards the wall. Truth be told, she is worried that they might smack into the solid surface and end up looking like utter fools.

Fortunately, the two girls soon find themselves in a whole new place on the other side of the wall.

"Zura…"

"Yoha…"

Truly, there's nothing to do but sigh in awe at the sight of the shimmering red train and the wrought iron archway, which has the words Platform Nine and Three Quarters on it. It's the first time Yoshiko has ever seen so many people using magic, some casting spells to entertain their friends or some using it to animate objects. Owls are flitting around the place, hooting for their owners or fellow owls, and she's certain that there's a winged golden orb zipping about.

She raises her hand to pinch her companion's cheek.

"Ow! What was that for zura!"

Alright, so she deserves the pain when Hanamaru pulls at both of her cheeks, hard.

"We aren't dreaming, Zuramaru, all of this is real!"

An indescribable sensation fills her heart then, surrounded by all these unusual happenings that feel natural to her. She's allowed to be the person she's meant to be without having to worry about being ostracized. She would no longer be singled out.

She's home at last!

"We made it."

"Yes… I wouldn't have made it without you, Yoshiko-chan."

"Well of course, I'm incredible like that," she couldn't help but grin at how captivated Hanamaru is by everything. "Maa, I admit, it's really thanks to- huh?"

They look around the platform for the cat but it's nowhere to be seen. Cats truly do whatever they please, though for once Yoshiko is grateful for its help.

"We haven't even thanked it yet zura…"

"It'll show up again I'm sure. Cats are like that! More importantly, take a closer look at our vessel, Zuramaru," she holds out her hand towards the train and slowly lets it drop in a theatrical arc. "Behold, the Crimson ship will bring us through the sea of sins and straight to the ever atrocious Cerberus! Fear not, our devilish power is more than enough to grant us passage past the Gates of Hell. Then I, the ultimate fallen angel, will convene with Lucifer and be ordained by Satan himself!"

"Yoshiko-chan really hasn't changed at all zura~"

She raises an eyebrow at the fondness in the brunette's voice. She's inwardly glad to be near someone who seems to understand her, and so she feels bad for not being able to recall Hanamaru. Her memories in her younger days are blurry and she didn't have the best attention span back then either. Ah well, the train ride will probably be long. That's plenty of time to get reacquainted with her.

She shuffles a bit awkwardly before grabbing Hanamaru's hand. "C-Come on, let's go dump your stuff somewhere already, I'm tired of pushing the cart!"

It proves to be rather difficult for the suitcases are just so damn heavy! Through their combined efforts, they manage to heave most of the boxy trunks onto the luggage cart.

The last one is big enough to stuff Hanamaru inside with plenty of room to spare.

"Seriously, what did you pack? Also, how did you even get here in the first place?"

"Those are my precious collection of ancient texts volumes 1-30! And I left my grandparents' place at 4 AM zura~"

Yoshiko deadpans. Hanamaru beams.

Rolling her eyes, Yoshiko decides it's futile lifting the stupid trunk and looks around for anyone to help. As much as she dislikes it, she acknowledges that even the fallen angel requires assistance sometimes. Unfortunately, most of the nearby students have either already boarded the train or are out of earshot, and Yoshiko certainly doesn't feel like yelling for help.

"W-Wingardium Leviosa!"

The heavy suitcase hovers as if it were light as a feather and easily glides into the cart, settling gently and neatly at a corner. The two girls whirl around to look for their savior, only to find someone who looks around their age. The short girl has wide viridian eyes and shoulder-length vermillion hair, though the bright colors don't clash as much as one would expect. She has an aura of a little woodland critter, making her appear harmless in spite of the impressive magic she performed.

"Woah, what just happened?" Yoshiko hurries to the newcomer, who squeaks in surprise and would have bolted if she weren't held in place by the former's hand.

"That's so amazing zura~!" Hanamaru sounds just as excited but she's considerate enough to approach the startled girl at a normal pace. "You can cast advanced spells already?"

"Ahm, I-I already know s-some because of how I'm r-raised," she smiles at them shyly as she tucks her wand back to her robes. "I'm R-Ruby Kurosawa."

"I'm Hanamaru Kunikida, and this is Yoshiko Tsushima zura!"

The annoyed fallen angel acknowledges that it's futile to correct her. "How you're raised? You mean you're a Pureblood? Hnff! I may be a Muggleborn, but just you watch I'll master that spell in no time!"

"I'm a Muggleborn too so we'd be grateful to learn anything about the Magical world, Kurosawa-san."

"O-Oh, p-please call me Ruby i-if you don't mind," though stammering, there's a hint of resolve in the redhead's tone. "And c-certainly, I'd be more than happy to help out."

Yoshiko quirks an eyebrow while Hanamaru nods readily. "Then call me by my first name too, Ruby-chan."

The two shorter girls exchange friendly smiles like they have reached an understanding. Yoshiko claps her hands and jabs her thumb at the train. "Enough chit-chat Zuramaru, we need to find seats, good seats! We've wasted too much time so there probably isn't any empty compartments left!"

Truthfully, she's still jittery about this new world and would prefer to calm her nerves in private before facing her future schoolmates. She must leave a spectacular first impression on the seniors and staff members after all! Zuramaru and this Ruby are alright, they're First-Years like me so I can still convert them! I just need to- eh?

She pats her bun in surprise, just noticing that her black feather is no longer there. Did she lose it earlier during the short sprint through the wall? No fear, Yohane always has plenty of spares!

"Ano, both of you can sit with me, if you don't mind?" Ruby twiddles with her fingers, her ears reddening as she struggles to finish her invitation. "I-I came here with Onee-chan but, she's the Head Girl so s-she's busy with things and will p-probably sit with the other prefects… um, so…"

"Of course we would love to sit with you, Ruby-chan," Hanamaru gently places her hands over Ruby's, which seems to help the other girl relax. "Right, Yoshiko-chan?"

At the cue, she pulls out another feather from her pocket and sticks it in her bun. "Fufu, rejoice, my little demon, that Yohane-sama has chosen to grace her presence- hey!" Hanamaru and Ruby are already walking away, the former having a playful smile and the latter looking utterly confused.

"Come on, Yoshiko-chan, the train is leaving zura~"

"Zuramaru-!"

As she chases after her new friends, she finds her trepidation fading at each step, replaced by exhilaration and confidence about what is to come. There are so many unknown and fun things, waiting for her to discover!

"Get ready, Hogwarts! Here comes the fallen angel Yohane!"

"What a tiring morning~ I need my coffee!"

Akin to a stretching feline, the golden-haired speaker flops and sprawls across the sofa. Her younger companion stands up and makes sure the door to their compartment is fully secured before asking. "Have you found her?"

"Oh yes~" The blonde twirls a black feather and lazily holds it up to the burgundy-haired girl, who takes it and casts a spell on it without preamble.

Amber and chartreuse eyes stare in grim acceptance as a dark veil envelopes the item and deflects the spell.

"It seems like your speculations are correct, Rikocchi," the playful tone is gone from the older girl's voice. "Things will be escalating for sure."

"What should we do, Mari-san? We should tell Dia-san, shouldn't we? Kanan-san too."

"I'll take care of Kanan. And I'm sure Dia knows already," Mari folds her arms behind her head and closes her eyes, the tension easing a little from her shoulders. "That's why she made me go help those adorable First-Years. Well, I was curious myself but still, that sneaky penguin~"

The serious expression on Riko's visage also fades as she tunes out her companion and turns to look out of the window.

"Right. So for now, we'll keep watch."

Note about School Term:

Hogwarts is 7year-term school, meaning the newbies/Yoshimaruby are only supposed to be 11 years old. This whole AU began with Yoshiko and Hanamaru's concept arts and I was mostly brainstorming their backgrounds for fun. I set the trio as First-Years even though they're already 15 years old in my head.

So, for the sake of this AU, please pretend Hogwarts' school term is only five years. Meaning, yohamaruby are 15 yo and starting their 'first year at Hogwarts'; ChikaYouRiko are 17 and 3rd years; KanaDiaMari are 19 and at their last/fifth year.

For artworks & concept arts etc., please go to my tumblr or pixiv