Nue are a type of demons, materialized miasma, and are classified as Type-Chimera due to being a mixture of the five elements, as well as being a flying-type mobile spirit disaster.
The first one in the story was more than three meters high, and it had a head, body, four limbs, and a tail. The first impression it gave off was that the balance of its entire body was 'out of tune', with its head 'like' a monkey's, its limbs 'feeling somewhat like' a tiger's, and its tail 'looking like' a snake. The impression each part of it gave off changed as time passed from constantly changing its appearance.
They are capable of causing physical damage, as well as spewing out miasma.