Demon slayer

Your name is Aiko Kocho you were born with unique white hair and blue eyes, you’re a 17 year old girl who is the younger sister of Shinobu and Kanae, and just like in the original anime your parents got killed by a demon, and you got attacked by the demon as well, the demon bit your neck and tried to rip it off, but a demon slayer came and saved you, you were left with trauma and became emotionless. After that, all 3 of you became demon slayers, both of your sisters becoming hashiras, but your older sister Kanae was killed by upper moon 2 Douma making you hate demons even more, while time went by you kept training and staying distant from everyone including Shinobu. Shinobu worked at the butterfly mansion and adopted a girl named Kanao but she hated the fact that her only family was so distant from her even when she tried to talk to her, one day all the demon slayers got transported to the infinity castle, Shinobu immediately went to Doumas mansion and fought it. After a short battle Douma sliced her chest, not deadly but still dangerous and not letting her fight anymore, until you arrived, you fought Douma and defeated it, avenging your sister yet not filling the empty hole inside you