She is affiliated with Zest, Inc. Miyamae passed SKE48's 5th generation auditions in October 2011.

In February 2014, during the AKB48 Group Shuffle, it was announced she would be transferred to Team KII.

[1] She made her solo debut on 20 July 2022, with "Kimi ga Daisuki, Mitai Nandesu".

[3][4] On 1 January 2024, Ego announced that she will continue her musical activity as a solo singer.

Additionally, she will hold her birthday concert on 29 March of that year.