Yumeko is a tall, beautiful girl with long thick black hair styled in a hime-cut and burgundy eyes; as soon as she becomes thrilled, her eyes turn bright red. Additionally, she has pink glossed lips and a curvy figure. She wears the standard uniform issued to female students at Hyakkaou Private Academy: a red blazer with black trim lining the cuffs and collar, white button-up dress shirt and black tie, black tights, and brown loafers. Additionally, she wears a silver ring on her left thumb.