A middle school second year who belongs to Star Harmony Academy's idol division. A cool and mysterious girl who looks dignified and mature. Maika has loved festivals from a young age, and is the type of girl whose blood boils when it comes to competitions. She passionately supports local soccer teams on a daily basis. With her agile dancing as her weapon, Maika has good reflexes and is good at taking action, but while reliable, she's also afraid of ghosts.

Aikatsu Friends!
Aine Yuuki who is a regular student at Star Harmony Academy's normal division and meets Mio Minato from idol division who invites her to join Aikatsu to fulfill Aine's goal to make friends. She also befriends Maika Chouno and Ema Hinata who are also idols. Aine and Mio form a pair to become best friends to become the bright "Diamond Friends". Karen Kamishiro and Mirai Asuku are categorized as "Diamond Friends" and are in the Diamond Class!

Aikatsu Friends!: Brilliant Jewel
The story takes place two years after Aikatsu Friends! with Aine Yuuki now in high school. One day she has an encounter with the mysterious idol Hibiki Amakake who wears the shining Jeweling Dress.