Eri is a teenage girl with bluish, off-white hair, messy and unkempt, which is parted in the middle of her forehead, almost reaching down to her waist. She has very wide, innocent-looking eyes, which are bright red in color. Poking out from the right side of her forehead is a small, brown horn, which grows larger when her Quirk is activated.

During school, she wears the regular U.A. uniform, which consists of a gray dress jacket with green stripes: the thin one below the tick one, two pockets a