The youngest sibling (Doma x reader)

(First off, the character I made ups name is Maki Tomioka , it's easier then going (Y/N) every Time so, anyway first chapter will have character info)

A young girl who lived with her aunt, uncle and cousins. A girl who's older siblings left her. Tsutako and Giyuu. Tsutako was killed, when Maki and Giyuu told people a demon killed her, they were called crazy and sent away. Giyuu ran away from their aunt and uncle leaving Maki alone. She was an odd child, she had flame like markings on her, and was strong and agile even without training. Her best friend, Doma. A boy who's family died and left him as the leader if a cult. It was a happy life, until that day.

I DONT OWN KNY!