KING OF PRISM: PRIDE THE HERO

Shin Ichijou and seven new students join the Edel Rose training school to follow their dreams of idol singer stardom. They hope to become the next Prism Stars and appear in future Prism Shows. However, Edel Rose is threatened by an evil plot hatched by Jin Norizuki from rival school Schwarz Rose. Over The Rainbow goes on indefinite hiatus to save Edel Rose and the three performers go their separate ways. In order to return a huge debt, Kōji goes to Hollywood to produce film music. Kazuki goes on a quest to rediscover his own origins as a street-style performer. Hiro delves into special training to improve himself. In separate locations, the members come to face themselves as Prism Stars. (Source: Anime News Network, edited) — Description from AniList community (anilist.co).