Akiyama Mizuki is a first year student at Kamiyama High School. They're the animator of the underground music circle 25-ji, Nightcord de., going by the alias "Amia". 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. Mizuki is a moody person, and Kanade thinks they only act on their own principles. Energetic.