Miki Mirai is a Japanese singer and performer known primarily for her work as a singing voice provider within the Aikatsu! multimedia franchise. She is recognized as a member of the idol group AIKATSU☆STARS!, a collective of performers who provide the singing voices for characters in the series starting from the 2015 season. Within the group, she is credited simply by her given name, Miki.

Miki Mirai's most prominent contributions are tied to two specific characters from the Aikatsu! universe. She provides the singing voice for Hinaki Shinjo, a pop-type idol and student at Starlight School who appears in the original Aikatsu! series and later in Aikatsu on Parade!. The character's speaking voice is provided by voice actress Yui Ishikawa. Additionally, Miki Mirai serves as the singing voice for Ako Saotome, a character from the Aikatsu Stars! series who is a member of the Bird Theatre Class at Four Star Academy. For this role, the character's speaking voice is performed by Natsumi Murakami.

Her filmography of singing roles includes several theatrical releases in the franchise. She is credited as the singing voice for Hinaki Shinjo in the 2014 film Gekijōban Aikatsu! and the 2015 film Aikatsu! Music Award: Minna de Shō o MoraichaimaSHOW!. She also provided the singing voice for Ako Saotome in the 2016 film Gekijōban Aikatsu Stars!. Both characters are listed with her as the singing voice in the crossover film Aikatsu! x PriPara THE MOVIE -Deai no Kiseki!-. For this 2025 movie, she also participated as a performer on the theme songs, contributing to the main theme "Happy Tuning" and the ending theme "Pretty x Activity" alongside other members of AIKATSU☆STARS! and singers from the PriPara franchise.