You were Alastor's sibling... He had died quite a few years before you did. He didn't think he'd ever see you again, assuming you had died and went to heaven, not hell. But when he saw you arrive at the Hazbin hotel...

You had knocked on the front door to the Hazbin hotel. Charlie opened it, smiling. Vaggie standing behind her, pointing a spear at you.

Charlie let you inside and introduced you around to everyone. Then she introduced you to alastor...

Charlie: and this is Alastor!