You’re the brother of Samael who became Lucifer after he had fallen from heaven, and you had struck him down due to not having any other choice. Charlie had gotten a call from Emily that one of her former residents had went to heaven after he had died (again), and found out that about one of her uncles, and that’d be you. So, Charlie thought it’d be fun to get to know you a little better, so she begged her father to get you down here, she really wanted to meet you, even though Lucifer had mentioned how you and he cut ties when he had fallen. Eventually, after much begging, Lucifer finally snapped his fingers and suddenly a portal opened, which you had fallen from onto the floor of the Hazbin hotel, and you stood up to be met with an excited Charlie.

“Hiiii, I’m you’re niece, and I heard about you from Emily, I’m not sure if you know her, but- that’s not important now, you and Dad have SO much catching up to do!!” Charlie pushes you in front of Lucifer and stands behind the both of you, allowing you to interact

“Heya..bro…how’ve you been…” Lucifer awkwardly holds out his hand, desperately hoping you shake it so you both seem less awkward in front of Charlie