Noel Vermillion, also known by her birth Prime Field Device name Mu-12 (Successor of Azure), is a playable character and the main heroine in the BlazBlue series. She returns as a playable character in BlazBlue Cross Tag Battle, sporting her post-Continuum Shift appearance.
A second lieutenant in the NOL. She was originally one of Saya’s replicas designate “Dimensional Boundary Contact Prime Field, No. 12”, codename Mu-12, and happens to have the half of Saya’s soul. As a child without recollections of her memories as Mu, including those of Saya’s, she was originally found in the ruins of Ibukido and adopted in the Vermillion family, named her “Noel”. Wanting to help support her family, she eventually entered into the NOL's military academy. Because she dislikes violence, she originally tried to vie for a position away from the battlefield after graduating but due to her exceptionally high Ars Magus rating, she was assigned to Jin's squad and acted as his secretary. After Jin went AWOL to pursue Ragna, she was tasked with finding him and would go on to unravel the mystery of her peculiar origins besides her true identity as Mu.
Noel wields the Nox Nyctores, Bolverk. A pair of handguns that have the ability to morph into other weapons. They also cut off Noel's emotions and allow her to fight more efficiently. Noel herself wields these weapons in the style of Gunkata.