•~Soft water waves~•

🩷🌊Prologue🌊🩷

"I'm sorry, Urokodaki-san." You apologize. He sighs. "Y/n, your powers are becoming more and more of a problem..." Urokodaki says and looks at the poor girl in front of him."I know, I'm trying to control them the best I can, " you say in a hushed tone."Hey, Urokodaki-san..." Sabito says and trails off once he sees soaked and broken items everywhere, then notices you."Oh.." He looks at you with sympathy and comes up to you and traps you in a gentle hug stroking your hair, Giyuu was there as well just staying quiet and looking at you with a sorrowful look "Y/n, I found something that might help you with your powers.." Urokodaki says, a hint of guilt in his voice, all three kids notice."Why do you say it like that Urokodaki-san?" Y/n asks, and Giyuu knows what he's talking about since he was with him when he found it out "Urokodaki-San you're not actually going to send her there, right?" Giyuu asks, his voice cracking and small tears well up in his eyes."Giyuu, I know it's not easy, but we have to. "What are you two talking about?!" Sabito yells already, not liking whatever they were talking about."There's a school. It helps kids with their powers and abilities. The only thing is there's a catch..." Urokodaki starts hiding his sadness with the idea."What is the catch Urokodaki-san?" You ask gently."It's in a different country... a faraway one" Urokodaki finishes, looking at all the kids' faces, Giyuu is looking down trying not to look too sad, Sabito looks angry and shocked, and Y/n has a face of calmness and Understanding "I wish there was another way but..-" Y/n cuts him off "No, I understand, I need to get my powers under control, When am u leaving?" She asks in an almost emotionless voice."You leave in a few days. " Urokodaki answers," Y/n gives a small smile and bows at a 45° angle, and walks to her room

~At the airport~

A Crow lands on Y/n's shoulder. "Hello Kiko," Y/n says in a sweet and gentle voice "Ok you have your crow and luggage, so you have your cat?" Sabito asks (He's worried af, he doesn't like the fact you'll be alone without him, he's the closest person to you, he and you were together since you were born, no you're not biologically related to him) "Yes, I have kiko and Milo, yes I have my luggage" you reply to Sabito he hugs you and says he'll write to you whenever he can, Giyuu wishes you farewell and he'll visit you whenever the school allows him, Urokodaki gives you your mask and the cloud outfit, you give a calm and gentle closed-eyed smile "Thank you Urokodaki-san, it's well appreciated" you say softly, you head to the plane and say farewell to your.... Family....

~The end of Prolouge~

A/n: You, Giyuu, and Sabito know all the breathing techniques and sword movements, Tanjiro knows the basic sword movements to protect himself if there's an intruder, Nezuko does not know any techniques or sword movements, she doesn't know how to properly hold one either, You, Nezuko, Sabito, Giyuu, Tanjiro, Urokodaki are this one family, though the only blood-related people are Tanjiro and Nezuko.
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~Nicknames for you~

Nezuko: Onee-San

Tanjiro: Ane

Sabito: Imouto-San

Giyuu: Sweet

Urokodaki: Musume
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~Your nickname for them~

Nezuko: Nezu-Chan

Tanjiro: Otouto-san

Sabito: Onii-San

Giyuu: Ani

Urokodaki: Oto-San
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~ages~

Nezuko: 12

Y/n: 16

Sabito: 18

Tanjiro: 14

Giyuu: 18

Urokodaki: 54
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~Translation~

Older sister

Ane
Onee-san
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Older brother

Onii-san
Ani
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Younger sister

Imouto-San
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Father

Oto-San
-------------
Daughter

Musume
--------------
Younger brother

Otouto-san
------------------