"The Ghost, The Valentine, and The Half" made by LazBriar
You're Anon. Just Anon. You've come a long way since your first days at the "Hazbin" Hotel, cultivating a relationship with the snarky Angel Dust. All seems well, but a friend has made an unexpected return, bringing with him the phantoms days old.
story: https://archiveofourown.org/works/35847001/chapters/89385001
tvtropes: https://tvtropes.org/pmwiki/pmwiki.php/Fanfic/MoxxieMorningstar
https://twitter.com/Christhezombie8/status/1541576616630816768
The Saint's Corpse has been stolen. A peacekeeper slain. Hell is descending into true chaos. However, as Lucifer's grasp on power frays, a plan is in motion.
Many things can damn a soul, be it willful malice or mere circumstance, everyone in Hell earned their spot in the afterlife. However, there are some cases where even the most vile, wrathful, and unforgiving denizens can only scratch their heads in disbelief and wonder 'did someone Up There make a mistake?'