Mizuki is an animator and video maker who uploads music videos as part of an online music circle. She has light pink eyes and hair, slightly curled and worn in a side ponytail tied with a red ribbon. Two even strands of hair are let loose, framing her face. The other three members of the group, Kanade, Mafuyu, and Ena (composer, lyricist and artist respectively) sometimes visit the SEKAI, and the four of them meet up a few times a week.