Music Girls(2018)

Ongaku Shoujo (TV)

The story follows the protagonist Hanako Yamadaki when she encounters the obscure, low-selling 11-member "C-list" idol unit Ongaku Shoujo. Their producer Ikehashi thinks the unit needs a new member. Together, Ongaku Shoujo and Hanako strive for the top of the music world.

(Source: Anime News Network)