(Y/N) (L/N) works for Mycroft Holmes and has for years, but when Mycroft's brother, Sherlock, fakes his suicide, Mycroft needs someone to take his place. He decides there is no one better than (Y/N) who has nearly identical abilities to his little brother, but is she up for the task of replacing the famous consulting detective? The answer to that question is for Sherlock to answer when he returns and tries to find out just who this woman is that has been replicating his life. {Mature Content}

Mycroft had always warned Sherlock that feelings can get in the way, especially when it comes to his chosen line of work. Typically, this would be the one thing the two brothers could agree on, however, when you reappear on his doorstep after years of no contact, informing Sherlock that your life's in danger, he's left struggling with both his feelings and what happened in your shared past. How can he possibly pretend such strong emotions have never existed when they still remain?

After the death of her mother, a young girl finds her sociopath father and his work partner. Along with them, she meets many new faces. Some faces she likes more than others.

First time writing so sorry if its bad. Your Sherlock Holmes daughter.