Hyo-ryung has a slightly chubby build with short, black hair in a bob cut with bangs, brown eyes, and pale skin. She wears the standard Hyosan High School female uniform, but with a pale pink sleeveless sweater instead of the cardigan, as well as sweatpants under her skirt, a yellow backpack, and Saucony Original sneakers. 

The sweater has thick white stripes around the collar and bottom hem, and a tennis symbol with the text "Play Goofy" on the left breast.