I loved Overlords writing a lot. It's such a shame the author became a schizo weirdo and held his own work hostage.
But yeah I loved how Ainz Ooal Gown slowly loses his humanity and things that make him squeemish in the beginning don't anymore as time goes on, he becomes more and more like a lich that has a past trauma in the workforce rather than a workforce rat pretending to be a lich.