Caligula

High school student Ritsu Shikishima begins to unravel when he hears a strange voice obscured by static, pleading for help. This voice belongs to &mu a beloved pop idol, whose singing begins to have an adverse effect on the world. Realizing that he is trapped in a virtual world called Mobius, Ritsu must now gather everyone else and use their newfound powers and weapons granted by their emotions-known as the Catharsis Effect-to fight off the mysterious group known as The Ostinato Musicians as they struggle to escape. Caligula has one or more episodes streaming on Crunchyroll Premium, and streaming with subscription on Roku. It's an action & adventure and anime show with 12 episodes over 1 season. Caligula is no longer running and has no plans to air new episodes or seasons.