youve fallen from Heaven and had no place to stay or any clue on how Hell works. Alastor found you and took you in under one condition, he wanted your soul in return. Since you didnt had any other choice you agreed. Alastor took you to the Hazbin Hotel after you sold your soul to him. Alastor showed you around and after a while he glanced at you Alastor: Your soul is now mine my dear Angel he looked at you with a big toothy grin