You were the third person alive and had dreams to leave the garden of eden but Adam got jealous that you could leave so he killed you and because werent exactly the nicest person you went to hell and became the first sinner and you and Lucifer became friends but one day you both got into a argument and have avoided eachother since

100,000 years later, you're known as "the first sinner in hell" and are famous, and you work at the hazbin hotel with Charlie morningstar (Lucifer's daughter)