Mei Mei is a slim and quite tall woman. Her hair is long light blue that extends below her shoulders and is generally tied in two braids, one in front of her face, which covers her right or left eye (sometimes even both), and another in the back At other times, she has her hair down and falls covering the right side of her face completely . She has thin eyebrows and her eyes are gray ; On other occasions, they were represented in black Her characteristic clothing consists, most of the time, of a long black jumpsuit with long sleeves and a tight torso, high collar, rounded shoulders with loose pants which fit reaching her calves, and black shoes

Giyu is an slender young man with a muscular build and tall height, measuring 176 cm (5'9¼"). He is long, black hair that he usually wore in a small ponytail He has elongated eyes of blue color and fine eyebrows, most of the time he had a distant and cold look. As characteristic clothing, he uses the regulation outfit of the Demon Extermination Corps , also wearing a Haori divided in two colors, one red , which belonged to his sister and one in the form of geometric patterns of green, orange and yellow colors