WN/Celestial Demons

Celestial Demons「, 」are what the humans (from the Eastern Empire) that have reincarnated into Angels are called. In other words, they are similar to Angels that have fallen into deprivation but are not quite the same as Fallen. Basically, Angel-Monsters. They are the subordinates of Demon Lord Dino.

Trivia
There is a language barrier here, since in Japanese, what we've read as 'angels' is 'tenshi' and this 'celestial demons' is actually pronounced 'enjeru' (angel) in Japanese itself. It wouldn't make sense to say that angels evolved into angels, hence 'Celestial Demons'.