Erina has purple-pinkish eyes and long, honey-blonde hair that flows just above her lower back. Her side bangs partially cross her cheeks and go down all the way to her neck. She is considered by most of the students in Tōtsuki to be extremely beautiful. According to her fans and followers, this trait coincides with her status. During her second year, her hair became longer and wilder. As a third year, she changed her hairstyle while also having cut it, reaching only up to her chin. 