LEMON ANGEL PROJECT

Lemon Angel was once the greatest girl band of Japan, but then it broke up and most of its members vanished. When a music producer decides to put together a new Lemon Angel, average high schooler Tomo Minaguchi is approached to audition for the group. Little does she know of the mystery behind the original Lemon Angel... (Source: Anime News Network) — Description from AniList community (anilist.co).