Nessa is a tall, dark-skinned girl with a very slender physique; long, blue-and-black striped hair; and blue eyes. She wears a gym uniform consisting of a white crop-top and shorts with blue-and-orange details, as well as a number 049 on it.

Underneath her seemingly composed exterior - exemplified through her calm tone when she speaks - Nessa actually conceals a burning heart intent on battling with massive competitiveness and indomitable willpower. As her type preference suggests.