DEATH COUNCIL LORE - PART 1
Nightmare and Nightmarionne (Five Nights at Freddy's 4)
Nightmare. The dark, transparent bear of death. A ghost-animatronic-like figure who had to deal with 2 notable souls in his entire career: the Soul of the "Bite of '8X" Victim, and the soul of William Afton.
Nightmarionne. A similar dark, lanky sock puppet. They are the more "natural" Grim reaper, and aside from the souls of several missing children, they only had to deal with ONE Notable Soul: William Afton...
Once the "Event" happened, these two nightmarish animatronic reapers were aproached by other psychopomps. They were offered position on the Council, and accepted after their demand was met: that they were to be the only ones who dealt with the Afton's family.
Once the rest of the Council found out just how inhumane William Afton acted in life, they agreed to leave such a soul to the capable paws/tentacles of the two reapers.
In order to keep the soul in check, a missing children approached the reapers and offered their idea: an eternal torture, one in which the Purple Killer would have to face all of his crimes in the form of murderous animatronics some of them even being HIS own ex-servants or his past selves.
The two reapers agreed to this plan.
But, little did they know, that another semi-identical Afton was released once the "Merge" occured. An Afton - one so similar to the soul they Just Trapped - that was messing with the natural order of Life and Death.
These two animatronics are searching for this "double", but due to multiple realities converging - and their duties to the Council - they have not been able to find him. Nor have they been able to keep a tighter eye on the Soul they already collected....
ADDENDUM: Sometimes, these two reapers can be seen conversing with small beings who looks a lot like them, but stylized. What these chibi-fied versions of the Reapers do for their masters, no one knows...