After Adam is defeated in the final battle, Nifty kills him by stabbing him in the back. Sir Pentious is the first Sinner ...

The most notable of these is the Pride Ring, in which all Sinners reside under Lucifer ... as well as Alastor’s near-defeat of Adam in the Hazbin Hotel season 1 finale (Alex Brightman).

The eponymous Hazbin Hotel is a place where sinners can be rehabilitated and ... the dominion of Hell but with the annual purge led by Adam, the first human, and his bloodthirsty angelic army ...