Is a young woman with shoulder-length burgundy hair and wears a short cape.
She is moral, kind, and honest, and has an outstanding hidden talent for magic. Due to being a recent addition to the ranks of Class Zero, she isn't assigned any number.

As one of the students of Class Zero, she is considered to be a mature and rational person. Serving as a pillar of support and a calming factor for Machina, Rem tries her very best to be cheerful, encouraging, and levelheaded, even through tough times. She is shown to be an emotionally resilient, loyal, and considerate person. Rem is especially sensitive of her friend's feelings, and goes as far as to hide her own pain so that she isn't a burden to her classmates.

She cares deeply for Machina, and is constantly concerned and looking out for him. As childhood friends, they work well together and understand each other better than anyone else.