Nerissa has long straight black hair with a blue inner side decorated with silver and golden ornaments on her left. She used to have two symmetrical horns, but one was broken long ago. Her horns have a blue internal layer covered with a black one that take the shape of musical notes near their base. Her horns are also decorated with black flowers. Nerissa has light purple eyes and a beauty mark below the left eye. She also has such a mark on her right thigh.