I've Turned Into A Monster (An American Horror Story/Cordelia x OC)

Ally is a young woman with a very pure and soft heart but she also carries a very powerful demon within her, she finds herself going to Miss Robichaux's Academy for Exceptional Young Ladies where she turns to the current Supreme Cordelia Goode for help after she realises the seal keeping the demon trapped within her has begun to weaken, at first she just tries to pretend her power is strong and hard to control but when Cordelia catches a glimpse of her true power, Ally tells Cordelia the truth about the demon and of her bloody and twisted origin but when word gets out about Ally's dark secret will the other girls in the coven want to cast her out in fear or will Cordelia be able help her be rid of the demon once and for all?

(Heavily inspired by Naruto and AHS Apocalypse)