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. Their voice is powerful androgynous. In their unit outfit, they wear a black sailor uniform. The collar of their uniform is light gray with a black-and-pink ribbon. They wear a gray striped skirt, ruffled with frills and lace on the hem of the skirt.