Mirai Momoyama is the one of the main protagonists of Kiratto Pri☆Chan. She is a 2nd-year student at Kirarigaoka Middle School and the childhood friend of Emo Moegi. She is a Lovely type idol, whose preferred brand is Sweet Honey. Her catchphrase is "Kiratto".
Mirai is an energetic, clumsy girl filled with curiosity. She is often dragged into things by her more lively friend Emo, due to her desire not to be an imposition on others. She has the ability to find traits in other people that make them shine.