A middle school second year who belongs to Star Harmony Academy's idol division. She is active as a popular idol and is the featured model for "Aikatsu! Style Times". Mio has excellent fashion sense, and demonstrates her talents by serving as both the designer and muse of her own brand, Material Color. While Mio is smart, earns good grades and is able to do anything, she has always felt that she's missing something. However, her encounter with Aine seems to spark something inside of her, leading Mio to invite Aine into the world of Aikatsu! (Source: Wikipedia)