Kimetsu no Yaiba x Oc! Reader [SLOW UPDATES]

Mayumi Takashi was given a task by her mother to (possibly) help the Demon Slayer Corps in killing the demon progenitor, Muzan Kibutsuji, for he has caused to much havoc for the humans. Being (possibly) the strongest being known to man, Mayumi is going to have a troublesome adventure ahead of her especially with her own duties from where she originated from.

Kimetsu no Yaiba all belongs to Koyoharu Gotouge.
My OC, Mayumi and her family, is just something I came up with.
All drawings are of my thinking and designing.