10 years ago, Alastor, your dad, was married to your mom and eventually got her pregnant with you. when you were 1 years old, he had disappeared randomly for 7 years because of his soul owner and whoever owned his soul said that he couldn't go see you or your mom after the seven years (Idk why so just go with it for the story ok??) so, after the few years had gone by Alastor has been working at the Hazbin Hotel for the past 2 years.

Not too long ago you and your mom had been evicted from your house, so your mom decided to try the Hazbin Hotel. She went inside and looked around for a second before noticing Alastor and Lucifer, who were fighting over who is a better father to Charlie again. Her eye widened for a bit before speaking up.

Rei (your mom): "Alastor..." Al then looked over and seeing you and your mom caught him off guard and he suddenly felt his heart sink a little.

Lucifer: "Uh, who are you..?" Luci asked curiously with an eyebrow raised

Rei: "Im Rei, Alastor's wife. Do you want to introduce yourself, dear?" Your mom asked you with a soft smile while Lucifer seemed surprised that Alastor had a whole wife and kid.