Lucy Del La Cruz is a 25 year old living in New York. She is always honest, she has a hard time lying to people, especially to the people she loves.
Unfortunately, she is also impatient, which probably has something to do with what happened when she was little. She doesn't remember a lot of things from her childhood, she probably repressed them. I mean can you blame her? Sold to the Red Room by HYDRA as a young child and then fought alongside Natascha Romanoff.
Luckily, an angel named Clint Barton came and freed the two. Natascha then joined S.H.I.E.L.D but Lucy wanted a normal life. She now lives in Brooklyn in a loft and visits Natascha and Clint whenever she could.
Even though she didn't work for S.H.I.E.L.D, they still paid for her loft. This whole job of being a killer and a spy was never really what Lucy wanted, but she was good at it. Instead of that, she now works as a tutor for a few students at the Midtown School of Science and Technology.
She and Natasha were still friends, even like sisters. When they were little they even had a mission together, were they had to pretend to be sisters with another girl for a while. They were like a real family but unfortunately after the mission was over Natasha and Lucy got separated from the other girl.
Natascha, Clint and Lucy are really like siblings when Clint and Lucy messed around, Natascha always had to intervene. Clint and Lucy really were like little kids, always joking, even if it was tactless at times.