The Concert

In the year after the passing of five of the best idols of their time, their sisters will form a group and take the idol world by storm, with the help of their friends from Yumenosaki Academy and Étoile Vio School along with a few appearances by some new friends they meet along the way.
How with the five members of Firebloom win over the hearts of their fans and their school, Hikaru no Nozomu Idol Academy?