BanG Dream!: Girls Band Party! - Roselia Stage  

BanG Dream！ガールズバンドパーティ！ Roselia Stage, BanG Dream! Girls Band Party! Roselia Stage

A story about a solitary diva, Minato Yukina, who decided to form a band and to go to "FUTURE WORLD FES." to fill the regret of her father.(Source: Overlap)