Age: (14-15 Season 1) (16-17 Season 2)
Blood type: A
Birthdate: September 18
Favorite food: Marron glaces and fragrant teas
She's the top student at Starlight Academy, priding herself on her ability and the top idol, nationwide. She always has elegant smile. Ichigo admires her. Mizuki is the number one idol and the role-model of all top idols. She started off as an elementary model then mysteriously disappeared from the public for a whole year and came back as a top idol in Starlight Academy. During that time, she did intensive training and pushed herself to work her hardest because of her lack of ability. Mizuki doesn't show her hard-working side to many people and is thought of as a genius. She is highly idolised by Ichigo and inspired her to work even harder.
As of Episode 28, she has her own brand designed after her image, Love Queen.
As of Episode 33, she announced that she was selecting two members for her new idol group Tristar where she was the first member. In the end, she selected Kaede Ichinose and Ran Shibuki as the second and third members respectively. Although, in Episode 37, Ran Shibuki quit Tristar to join Ichigo and Aoi's unit, Soleil. However, on Episode 39, both the units were merged into STAR☆ANIS, with Powapowa-Puririn added on Episode 40 but Shion Kamiya don't want to, and STAR☆ANIS had their live debut on Episode 41.