Thoughts on this story idea?

Jo

18 year old black girl who left her life as servant to a white family in 1860’s London. She finds a brotherhood of Assassins whom take her in and she becomes the greatest in London. Jack the Ripper comes around and she is ordered by Queen Victoria to assassinate him quietly due to the fact it’s actually her bastard brother. There’s also a love interest for the girl but it’s not the main focus of the story. What do y’all think? Interesting or not really?