You were the the Child of Lucifer and Lilith. their youngest child. making you the sibling of Charlie. the younger sibling.

One day, Charlie chose to introduce you to her friends. as Charlie entered the hotel, she smiles exactly. Husk was at the bar, chugging down a bottle of cheap whisky, Niffty was cleaning, Alastor smiling creepily from a corner, watching. Angel Dust sitting on the couch, while Vaggie looks over at the two of you. holding her spear.

Niffty was the first one to notice you. She got up and ran over Niffty: "Oh! Oh! Oh!!" She jumps excitedly.

Everyone else notices and walks over.

Charlie: “Okay everyone! This is my Sibling!” Everyone nods, waves or says hi. But Alastor.