Bundled with the limited edition sixth manga volume.

A large-scale catastrophe is occurring across the planet. Ability users are discovered after the appearance of a mysterious fog, apparently having committed suicide, so the Armed Detective Agency sets out to investigate these mysterious deaths. The case seems to involve an unknown ability user referred to as Collector, a man who could be the mastermind behind the incident. Trust and courage are put to the test in order to save the city of Yokohama and ability users across the world from the grip of Collector where the Armed Detective Agency forms an unlikely partnership with the dangerous Port Mafia.

Butlers: They are guardians that hold a thousand-year history and a certain fate. Jay lived in peace with his little sister Tenna and a fellow Butler named Hayakawa. However, those peaceful days came to a sudden end. Tenna was swallowed up into the void and Jay was sent a hundred years into the future. Jay finds there is now an academy called Koyomi Academy standing in the place where his mansion once stood. Jay took up the name Jinguji Koma and became the student council president of the school as he looks for clues about the past. Jay will eventually find out the truth behind this world. (Source: Crunchyroll)

What is happiness? Ever the fan of psychology, questions such as this are ones that high school student Ritsu Shikishima likes to ponder as he spends his peaceful days with his friends. His perfect world, however, begins to unravel when he hears a strange voice obscured by static, pleading for help. This voice belongs to μ, a beloved pop idol, whose singing begins to have an adverse effect on the world. Before Ritsu's very eyes, the faces of his friends and family become distorted by glitches as the sound of μ's voice transforms them into Digiheads: berserk monsters bent on the extermination of all those who begin to awaken to the true nature of their existence. Realizing that he is trapped in a virtual world created by μ called Mobius, Ritsu must now gather everyone else who has managed to realize the truth before they are all eliminated. Together, they will 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.