Ignis was previously human, but through her husband's experiments, she became the Fluctus Redactum: Ignis, a doll much like the Deus Machina: Nirvana. She does the bidding of Relius Clover, engaging in combat on his command. Whether or not she is considered a true Nox Nyctores is currently unknown.
Her outfit is similar to that of Nirvana, although her hat, collar, and dress are a deep red color. Her eyes are blue in color and have irises, making them more human-like compared to Nirvana's opaque, pupil-less eyes. She has two big golden rings on each side of her hat instead of one like Nirvana. Ignis' hands have sharp, hooked protrusions on the fingertips, she has two line crack on each awhile Ada has one, and she uses these in a deadly extent when grappling with Nirvana during Carl Clover's true path in Continuum Shift.