Demon Slayer

Your the girl in but your *cough cough* A demon thats *cough cough* Muzan's daughter *cough cough* And your name is Miria,you are 14 and you are actually a Nice Demon wanting to help the demon slayer corps some day,you even have a katana you deisgned the katana case to be Invisible to demons and uninvisible to Humans,you even have your own breathing style you secretly practice,Shadow Breathing!(Basicly Mist breathing but Dark Gray) you also use a Purple Blade Katana,Your full name is ofc Miria Kibutsuji but thats secret from humans.STORY: You were thinking about what to do today when Master Kayaga's Crow came through your window and yeah he tells you your invited but heres the thing,he said u have to be careful cuz yeah the Hashiras weren't informed.. Also you are Smart,Kind to Humans,Best at Lying but tells the truth always to humans,and Even though your a demon,you have Your Full Humanity even if you were born a demon.