The Devil's Daughter: My Flesh And Blood
She always knew he would come back.
He was her father, and as twisted and evil as he was, he cared about her. She was probably the only one he did care about. She knows the truth, as her adopted mother tried to prepare her. They tried to tell her to do good, to choose God, but he is her father, her flesh and blood. Lucia is Lucifer's daughter, she is loyal to him, and him only.
He needs her help, for there are others like her. Sons and daughters that come from legends and villains that until now, Lucia only thought existed in movies.
She is the devil's daughter, and she has work to do.