The Way Water Flows (demon slayer x oc)

the title is so corny but I'm not changing it yet

urm Idk how to do this. Chiyoko was about to die and inosuke was like oh my good demon to kill and saved her but almost died so she was like f u boar and giyuu was like boom dead and she was like oh my good then she was like ahh my back is broken and she pass out and almost died again and wake up in butterfly mansion and was like I gotta train. so uh giyuu was like I don't wanna deal with ur crap and she was like I don't care and annoyed him till he agreed to train her basically what happened

more about my oc since I don't have a photo:
Her name is Chiyoko and her last name is hano
She is 18 years old and uses water breathing since it's the most common breathing type and shes a basic b
Family wise she has her parents and an older brother (until I feel like expanding her plot, that is)
her hair is black and always in a braid other then a little bit poking out her uniform is just like shinobu
shes around 5'7 or 170 cm (2 in taller than tanjiro) tall queen ig
she is a regular looking girl without make up that is
low-key the most realist oc I have ever seen bc I ain't doing that unicorn breathing shi