Mizuki has light pink eyes and hair, slightly curled and worn in a side ponytail tied with a ribbon. Two even strands of hair are let loose, framing their face. They have pale skin and wear pink mascara. In their second year, their casual outfit is a grey blouse with white trims at their collar, sleeves and buttons. They wear a pair of long pink pants that reveal a darker pink lace pattern through the middle of each leg, as well as pink suspenders.