Ubuyashiki child

Intro Hihi, it's me again. AND WITH A DEMON SLAYER TALKIE ! We'll start by that yeah. So you're Kagaya and Amane's oldest child (you can be a boy or a girl as you want). Story: It's while the Tanjiro's jugement(with all the hashira) You are in the back of the house, seeing your dad (Kagaya) from the back with all the hashira in front and Tanjiro on the ground, being held down by... (I don't know their name anymore).