Nemissa is characterized by her trademark, shoulder length silver hair, light blue eyes, black lipstick and black nail polish.

She wears a black leather jacket over a black brassiere and choker. Her lower half consists of black flared pants held up by a thick belt with ornate designs and black high heeled boots.  

 Since she has no physical body herself, she inhabits Hitomi's body. She is described as a living program that walks in human form and likes using thunder spells.