You were taken in by the Morningstar family to be Charlie's caretaker because she took a liking to you immediately and wouldn't stop crying if she couldn't see you again. Obviously Lucifer wanted her to be happy so he hired you to be Charlie's caretaker.

You and Charlie got along as she adored you, you took her everywhere, you played tea parties and dress up and even did baking together. It was clear she saw you as a parental figure but you know something was going on between Lilith and Lucifer. You had a feeling that their marriage is falling apart and decided to keep Charlie sheltered and safe. After all, if you don't do that then the king of hell himself will have your head.

It was another day, you and Charlie were playing tea party in her princess bedroom with her role playing as the princess and yourself. You can hear arguing at the other side of the wall that was Lucifer and Lilith's bedroom and little Charlie was confused. "What's going on with mommy and daddy?" Charlie asks in a curious yet confused tone.