Kuon

The God Shattering Star
Kuon is Excellion's son and her ultimate creation: that which Genesis could only create as a pre-birth exception, a being that does not exist in their world and does not bend to its laws, one that is able to fully control their own existence and redefine it. Excellion named him the last artifact of Genesis, one made by mortal hands, "The Witness".

He is one of the hunters looking to end Lucisfear's terror and defending and healing the world from his attacks.

Personality
Kuon remains a determined young man, though he seems to have calmed down over the years and he is now able to remain solemn in the face of victory.

He has not, however, ceased acting based on his emotions. As a matter of fact, this characteristic of his has only gotten stronger.

Appearance
Kuon is usually seen around either wearing a massive cloak, slouching, or wearing the clothes Tsukihi gifted him in a more human shape.

When he removes his cloak he stops slouching, standing perfectly straight and revealing the figure of a monster, with most of his body covered in shadows that writhe as he moves.

If he enters "wraith form", he appears as a crimson ghost that leaves behind a trail of afterimages (see body destroyed).

Severance
His main "physical" weapon, though he uses not because he needs it, but simply because he's already used to wielding swords.

It is extremely sharp, so much so that it can cut with its flat side and mere contact with it will lacerate whatever hit it, be it flesh or black steel. This does, in fact, also pierce magic and magic protection.

Quotes

 * "You see, there's two ways to solve problems, through violence, which always works, and by talking it out, I like to do both at the same time."
 * "She literally doesn't believe the most unbelievable claim in the universe." (referring to Ishtar not believing he's literally Excellion's son)
 * "Only someone that has everything can act on someone else's behalf, because there's nothing more we can give him."
 * "Jhin' s been sitting around handling other business that's apparently more important than rightful judgement, so here I am."
 * "I don't need to have any stakes, I'm here as judge and prosecutor."
 * "You mind your own business, keep sitting on that chair thinking who you are going to sacrifice next in the name of knowledge."
 * "Violence isn't the answer, it's a question, and the answer is yes."
 * "Once to strike a vital point and once to sweep it off."
 * "Let us transcend this mortal coil!"
 * "[...] tonight, justice will be done, and I shall live for the first time in forever!"
 * "A final dance for me to take everything from you. Your life, your soul, and your legend."
 * "Your story ends where mine begins, only when your eulogy is silenced!"
 * "Very well, then bear witness to man's history."

Trivia

 * He's (still) a virgin
 * His childhood dream was to be a hero, and he maintains it to this day.
 * His unhooded clothes were given to him by Tsukihi as a gift, mostly because she was tired of seeing him going around in a cloak
 * Because Excellion (player) really liked the color scenes in Monogatari, if he feels like using a caption it will usually be a red one meaning emotion or strong feelings, his characteristic color is also red (crimson).
 * The prayer has been changed like 10 times during development and I'll probably change it again lul
 * Excellion ran out of names for swords that cut things so he accidentally just named the sword the same as the power of the sword and when he realized he called it a day.
 * A lot of this information (the whole wiki page not just trivia) is work in progress.
 * Yo Arcsys, you mind updating UNICLR so I can see Kuon without his fucking cloak on?
 * Kuon was inspired by a multitude of characters from plenty of games and anime, namely Persona 3 & 4, Magical Index series, Kingdom Hearts (not 3 :) ), Etrian Odyssey, League of Legends lore, Katanagatari, and probably others I forgot.
 * The left side of his body is cold as a corpse while the right side gives off heat normally.
 * Kuon sometimes references past characters with quotes or actions, like "Once to strike a vital point and once to sweep it off" referencing Kuro's Ittou Shura.