kissyoin kiara
Tsukihime version of Sessyoin Kiara, introduced in the Tsukihime (remake). She's the third-ranked member of the Burial Agency.
Kissyoin managed to become omnipotent, however, she was "humbled" by the knowledge of her weakness after seeing other universes and her other versions and decided to stay in Tsukihime's universe, where her worth is higher as a big fish in a small pond.
The only known depiction of Kissyoin portrays her as a woman in a simple nun's habit identical to that worn by Noel.