ミュー·トゥエルブ

Hobbies: Destruction
Values: None
Likes: Destruction
Dislikes: The world

Mu-12 is the true form of Noel Vermillion. Through Yuuki Terumi's ambitions, she fused with the true Azure, and awoke as the Sword of the Godslayer Kusanagi, someone who can possibly kill a God.
μ-No.12- is an emotionless killing machine who wants the world to be destroyed. She only acts based on Terumi's orders, and she believes that the world "hates her", and is filled with nothing but lies. However, after Noel gained control over her powers and transformation into Mu, she now retains her normal personality and emotions when in Mu's form. Upon transforming willingly, Noel noticeably becomes more "in control" of her emotions, as opposed to when she felt as though she blacked out when fighting using Bolverk. She is also shown to be more confident and outspoken, though she still has some degree of shyness and embarrassment regarding her rather revealing attire, particularly when facing Ragna, especially facing Kagura.