Mirai Ayase is a Japanese voice actress and singer affiliated with the agency Ken Production. She was born in Tokyo on December 20, 2004. Ayase decided to pursue a career in voice acting during her third year of junior high school, having been an admirer of anime and voice acting from a young age. She is a graduate of the 23rd term of the School Duo training institution's regular class.

Her debut and most prominent role to date is as Uta Komaki, the main character, in the mixed-media a cappella music project Utagoe wa Mille-Feuille, also known as Harmony of Mille-Feuille. Her voice work as Komaki is featured in the project's music videos, singles, and the 2025 anime television series adaptation produced by Jumondou. The project also highlights her singing abilities, as she performs on related character song singles such as SINGING, POPPIN' TIME, and TREASURE. In addition to this role, she has voiced a character named Chiho in the game SEGA NET Mahjong MJ and is set to appear in the 2025 anime Ao no Hako.

Ayase is an active participant in live events, including concerts, anime conventions like AnimeJapan, and project-specific stages, which provides her with performance experience and public exposure. Within the industry, she has a close professional relationship with fellow voice actress Miharu Hanai, who gave her the nickname Ayappe. She is also known by the nickname Mira among her fans.