Ivory family!

Nyon is one of the few members of Luther's household with low danger potential (along with Sebastian). He is shy and tends to avoid other creatures rather than confront them directly due to his soft voice and withdrawn nature. Sometimes, if he feels like it, he relaxes and smokes marijuana with people (if they are okay with it).
Appearance
Like Nyen, Nyon shares most of his physical attributes with Luther. Nyon has shoulder-length light blue hair, styled in a pageboy cut similar to Luther's. He wears three false sideburns on each cheek and three false eyelashes on each lower eyelid. His eyes are surrounded by red circles. He always wears a black headband with two round, black ears on either side. His mouth is smaller than Nyen's. He wears a long-sleeved yellow shirt with the phrase "OK 1/2" on a white oval design on the side. He also wears light blue jeans and black pointed shoes. He is always seen slouching.

In one of the first lucid visions, he is depicted as a gray kitten. And in the 30th lucid vision, both his whiskers and eyelashes disappear.

Appearance: A black hat with two points, resembling cat ears, and a black sweatshirt with the word "NEVADA" (or sometimes "NIRVANA") on the front. He also wears beige pants and black shoes. He has long, dark fingernails and is often seen holding a cigarette.
When he hunts, he wears a red mask with pointed teeth.

Personality:
Nyen is usually calm and serene, though he has a high opinion of himself, emphasizing how different he is from humans (partly due to traits he inherited from Luther). He isn't very talkative and tends to be aggressive and sarcastic with everyone. Nyen is the mainstay of the household and becomes territorial if anyone crosses him. He tends to be controlling and wants people to obey his orders, tolerating no disobedience that disturbs him. But with Master Luther, he obeys and will do almost anything Luther asks, even harm others. Nyen takes a particular, sadistic pleasure in killing his victims.
Nyen considers himself an "idiot" and enjoys bullying Nyon and Sebastian with his cruel pranks. Despite his malicious jokes, he enjoys reading romance manga, but only after Randal gave him one. Nyen has feline tendencies and is often mischievous.