Adopted by the Widow

After her parents die in a fatal car crash at the age of 3, Daniela is left in an adoption centre with only her skills at karate and fighting. Well, that is until one day, Nick Fury finds her training in the training room and takes her with him to work at S.H.I.E.L.D, where she is his number 1 killing machine. But little does Daniela know, her life is about to take a massive turn as she is sent off to the Avengers where she is adopted by the famous Avenger - Natasha Romanoff. And, of course, the fact she finds out she has powers while she is there.

Some ideas from @Jessthebrunettes fan fiction 'The Place Where I Belong' on AO3 + Wattpad

Name idea:
@Marvelobsession1on1