A deal with a demon butler oc x sebastian

This is a fanfiction of Black butler my oc is going to be the mistress and Sebastian is my servant all rights are reserved so please don't steal

This is a story of Akira marie alexandria and a deal she sealed in blood with a demon that she gave the name Sebastian Michaelis Akira is a young noble women who Lost her parents and was taken and tortured By a certain cult that used childrens bones to create new limbs for people Without limbs and one fateful day she was chosen to be marked and tortured so in her time of need she summoned a powerful Demon butler who will create a contract with her and in exchange Akira will lose her soul after she reaches her goal to find who killed he and her little sisters parents.