Tenma Numahime

One of the Dai Tenma and a pillar of Yatsukahagi.

Her existence is somewhat uncertain towards other people outside of Edo, because of her form is ever-changing, hence no one can fully grasp her true identity.

Spoiler

She is close to Momiji who can sit down and talk with, however in fact she's really unpredictable with abnormality beyond comprehension.

Due to this point, Numahime is a very dangerous opponent when it comes to unpredictability.

"How shameful and envious i am. Even i forgot the violation that happened to me too."

Spoiler

In truth she is one of the female character in Dies Irae, Rusalka Schwägerin, after the death of Marie, Mercurius and Reinhard Heydrich, she along with other survived members of Marie universe joined in the group formed by Ren in order to protect what's left of her world.