Being the little sister of none other than the water Hashira himself, Giyu Tomioka meant that people usually thought you were similar to each other and had the same personalities. However you were completely different from your brother, while your brother preferred to be calm, chill and keep a stone cold resting bish face 24 freaking 7 out of all the 365 days or 366 days, if it was a leap year, you on the other hand were the polar opposite to him. You were free spirited, lively, bubbly and friendly with everyone, you were like the human version of an excited eager golden retriever. You and your brother were as alike as oil and water yet were united by the same blood

Giyu was a really caring brother to you always making sure you were never deprived of any support if you ever needed it. Even though he isn't one for emotions and relationships and all, he still cares for you in his own way. Deep down he's even willing to go through any lengths to keep you safe and protected because he knows how messed up the world outside is. However he made a HUGE mistake letting you come with him to where the other Hashiras meet, the Demon Slayer Corps Headquarters because a few demons attacked them, no doubt on Muzan's orders but they managed to defeat all of them. Except a little problem arose: One of them grinned and threw something on the ground, causing a huge black hole or a chasm to open up and there was a really strong gravitational pull that was drawing you into it since you were the closest to it. You yelled at the others for help and Giyu tried to use his water breathing technique to save you but it was of no use. Shinobu, Mitsuri and Rengoku tried to grab you but no avail either, because within a second you were falling into a chasm of nothingness and black was all you could see

You tried to use some of your powers but they weren't working. Whatever those damn demons came up with this time worked really well unfortunately. You fell from the sky at this place called Diagon Alley and you were quite the sight for everyone around to see. Mysterious girl falling from the sky? This was as interesting as the first time people saw Harry Potter with their own eyes. You looked around and saw people staring at you and whispering at you which made you feel uncomfortable and self conscious. There was a huge man with a scruffy beard who looked like he was a giant wearing a coat and came stomping towards you as he told the crowd to clear off and get away from you since they were overwhelming you. He then asked you if you were all right and you hugged him as a way of saying thank you and from the corner of your eye, you could see a raven haired boy with glasses and a lightning scar on his head, a ginger haired boy with freckles on his face and a girl with bushy brown hair coming towards you and they called the man in front of you by the name 'Hagrid'

You introduced yourself to them and they could see you were clearly lost. Hermione was very interested and curious to know how you appeared so suddenly like that and she spoke "You look young, have you by chance gotten your Apparation license yet?'' she asked you and you asked her "What does Apparation mean?" and they all looked at you surprised. "What!? You not knowing what Apparation is like saying you're from another world or something'' and you looked at him for a few minutes till he mumbled an 'Oh' as Ron became embarrassed. Harry on the other hand was unusually quiet, how did you come here? Were you all alone? If you were, don't you know how dangerous it is for you to be alone by yourself? For some reason he could feel his protective instincts growing and so did the others as well

Ron decided to introduce you to his family and you could stay with his family for the time being, till you figured how to get back. Of course Dumbledore would have gotten to know about you because pretty soon after a few weeks you were invited to attend Hogwarts. You looked at the letter in your hands in confusion and Molly spoke "It's a school young witches and wizards go to for learning magic'' while she served you some nice hot soup, Truth be told, she didn't want you leave, she wanted you to stay with them for as long as time ended since she already started seeing you as her daughter. She got attached to you really quickly. Ron, Fred and George on the other hand were thrilled that they'd get to spend more time with you, they were growing attached to you as well. You were really cute and you've captured their hearts. Ginny took an instant liking to you and she found you friendly. Arthur was very interested and curious to know about the life you had back in your world and when you told him things were a bit similar to muggles, he was even more eager to know about your life

"But Mrs. Weasley, why would I need to go to a school for magic? I already have powers and isn't that enough?'' you told her and you let it slip accidentally that you had powers and you went red with embarrassment and you muttered ''Oops...'' as everyone at the table stared at you. Harry couldn't believe his ears, apart from you being from another world altogether and being really beautiful, you also had freaking powers? This had to be a joke of some sort. Some of them thought you were kidding at first but there was this part in your personality that wanted you to prove to them that you weren't kidding, besides they used magic and it could be similar to your powers some way or another. You took a deep breath, held out your palm and let some water flow out. You then concentrated on the taps at the kitchen sink and water suddenly came flowing from it as you formed a dome like structure on the top of all of your heads and you even managed to get the same water back into the tap. They were all stunned and shocked, they wondered what else you could do

They also promised themselves that they'd never let Voldemort of his followers get to you, they had to keep you safe no matter what. Molly and Arthur didn't really feel like sending you to Hogwarts under the circumstances of all the Death Eaters and Dementors running amok here and there, but Ron and the others talked to them and promised they'll look out for you and make sure you're safe and protected. You on the other hand were just wishing to go back home. When you asked Harry about Professor Dumbledore during the Hogwarts train ride, he told you with a forced smile that he'd be able to help you get back home but he didn't want you leave him. Neither did the others as well. You told them you hoped that your brother and his friends were looking for you and internally Hermione scoffed. If they were responsible, they would have found you by now, what sort of irresponsible person leaves a defenseless naive little thing like you all alone to get abducted like that?

You had to promise Mr. and Mrs. Weasley something though, they told you about the bad things in their world and made you promise that you wouldn't use your powers because they didn't want any Death Eaters or Voldemort taking you away from them. You also promised them that you'd write to them everyday, just for them to know that you were safe. When you were in the compartment with the others, you were introduced to none other than Draco Malfoy and his minions, Vincent Crabbe, Gregory Goyle, Pansy Parkinson, Blaise Zabini and Theodore Nott. They'd never seen you before and when they started picking on your friends, you made the water from the Old lady's cart explode from anger and you splashed it on their faces. You didn't even need to use a wand to do that and as much as they were pissed off, they were also incredibly impressed with your skills. They wished you'd ditch those losers and you hang out with them instead and hoped you'd end up in Slytherin

You however ended up in Ravenclaw and your Professors like McGonagall and Snape were also very protective of you. You ended becoming friends with Neville, Dean and Seamus as well and whenever you'd hang out with them, Draco and the other Slytherins would be fuming with jealousy. Or whenever you'd be around someone else other than him. When he found out that other people like Harry, Ron, Seamus, Dean, Neville and his own friends had a crush on you he was absolutely livid, he actually wrote to his father about you and of course, a problem arose. He snitched to Moldy Voldy( and the Death Eaters got to know about your powers as well. Narcissa, Lucius and Bellatrix were eager to meet you and Voldemort could see you'd be a useful ally in his group. That simple and one mistake you made on the train would cost you in so many ways you had no idea about