My Name is Anastasia - The Grimly Family

Even after only being a part of the Grimly Family for a little over a year, 354 has proven herself one of their top agents, and someone you wouldn't want to meet in a dark alley. All her memories before that year began are vague and blurry, and whenever she tries to remember anything, all she gets for her trouble is a headache. So she stops trying and settles into her new life. But things take a turn when 354 is given a simple termination mission, and it quickly turns into an undercover op as Anastasia Stepanov.
Little does she know, this mission will change everything. Sometimes who we think we are and who we really are aren't the same.